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1.
Jiamin Ding Zitong Liu Wenrui Zhao Wenlong Jin Lanyi Xiang Zhijie Wang Yan Zeng Ye Zou Fengjiao Zhang Yuanping Yi Ying Diao Christopher R. McNeill Chong‐an Di Deqing Zhang Daoben Zhu 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(52):19170-19175
Development of high‐performance organic thermoelectric (TE) materials is of vital importance for flexible power generation and solid‐cooling applications. Demonstrated here is the significant enhancement in TE performance of selenium‐substituted diketopyrrolopyrrole (DPP) derivatives. Along with strong intermolecular interactions and high Hall mobilities of 1.0–2.3 cm2 V?1 s?1 in doping‐states for polymers, PDPPSe‐12 exhibits a maximum power factor and ZT of up to 364 μW m?1 K?2 and 0.25, respectively. The performance is more than twice that of the sulfur‐based DPP derivative and represents the highest value for p‐type organic thermoelectric materials based on high‐mobility polymers. These results reveal that selenium substitution can serve as a powerful strategy towards rationally designed thermoelectric polymers with state‐of‐the‐art performances. 相似文献
2.
Fudong Chen Prof. Shirong Wang Prof. Yin Xiao Feng Peng Nonglin Zhou Dr. Lei Ying Prof. Xianggao Li 《化学:亚洲杂志》2018,13(10):1335-1341
Two alcohol‐soluble electron‐transport materials (ETMs), diphenyl(4‐(1‐phenyl‐1H‐benzo[d]imidazol‐2‐yl)phenyl)phosphine oxide (pPBIPO) and (3,5‐bis(1‐phenyl‐1H‐benzo[d]imidazol‐2‐yl)phenyl)diphenylphosphine oxide (mBPBIPO), have been synthesized. The physical properties of these ETMs were investigated and they both exhibited high electron‐transport mobilities (1.67×10?4 and 2.15×10?4 cm2 V?1 s?1), high glass‐transition temperatures (81 and 110 °C), and low LUMO energy levels (?2.87 and ?2.82 eV, respectively). The solubility of PBIPO in n‐butyl alcohol was more than 20 mg mL?1, which meets the requirement for fully solution‐processed organic light‐emitting diodes (OLEDs). Fully solution‐processed green‐phosphorescent OLEDs were fabricated by using alcohol‐soluble PBIPO as electron‐transport layers (ETLs), and they exhibited high current efficiencies, power efficiencies, and external quantum efficiencies of up to 38.43 cd A?1, 26.64 lm W?1, and 10.87 %, respectively. Compared with devices that did not contain PBIPO as an ETM, the performance of these devices was much improved, which indicated the excellent electron‐transport properties of PBIPO. 相似文献
3.
Fabrication of Fe‐Doped LiCoO2 Sandwich‐Like Nanocomposites as Excellent Performance Cathode Materials for Lithium‐Ion Batteries 下载免费PDF全文
Li Liu Dr. Huijuan Zhang Jiao Yang Yanping Mu Prof. Dr. Yu Wang 《Chemistry (Weinheim an der Bergstrasse, Germany)》2015,21(52):19104-19111
In this article, the two‐layer sandwiched graphene@LiFe0.2Co0.8O2 nanoparticles (SG@LFCO) have been prepared and investigated as high‐rate and long‐life cathode materials for rechargeable lithium‐ion batteries. The materials possess a high‐surface area (267.1 m2 g?1) and lots of void spaces. By combining various favorable conditions, such as Fe doping, coating graphene, and designing novel morphology, the as‐prepared materials deliver a specific capacity of 115 mAh g?1 at 10 C. At the 0.1 C cycling rate, the capacity retention of 97.2 % is sustained after 250 cycles and a coulombic efficiency of around 97.6 % is obtained. 相似文献
4.
Songwei Gao Nü Wang Shuai Li Dianming Li Zhimin Cui Guichu Yue Jingchong Liu Xiaoxian Zhao Lei Jiang Yong Zhao 《Angewandte Chemie (International ed. in English)》2020,59(6):2465-2472
Multi‐wall Sn/SnO2@carbon hollow nanofibers evolved from SnO2 nanofibers are designed and programable synthesized by electrospinning, polypyrrole coating, and annealing reduction. The synthesized hollow nanofibers have a special wire‐in‐double‐wall‐tube structure with larger specific surface area and abundant inner spaces, which can provide effective contacting area of electrolyte with electrode materials and more active sites for redox reaction. It shows excellent cycling stability by virtue of effectively alleviating pulverization of tin‐based electrode materials caused by volume expansion. Even after 2000 cycles, the wire‐in‐double‐wall‐tube Sn/SnO2@carbon nanofibers exhibit a high specific capacity of 986.3 mAh g?1 (1 A g?1) and still maintains 508.2 mAh g?1 at high current density of 5 A g?1. This outstanding electrochemical performance suggests the multi‐wall Sn/SnO2@ carbon hollow nanofibers are great promising for high performance energy storage systems. 相似文献
5.
Wen Lu Junling Shen Peng Zhang Yijun Zhong Yong Hu Xiong Wen Lou 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(43):15587-15593
Hierarchical hollow structures for electrode materials of supercapacitors could enlarge the surface area, accelerate the transport of ions and electrons, and accommodate volume expansion during cycling. Besides, construction of heterostructures would enhance the internal electric fields to regulate the electronic structures. All these features of hierarchical hollow heterostructures are beneficial for promoting the electrochemical properties and stability of electrode materials for high‐performance supercapacitors. Herein, CoO/Co‐Cu‐S hierarchical tubular heterostructures (HTHSs) composed of nanoneedles are prepared by an efficient multi‐step approach. The optimized sample exhibits a high specific capacity of 320 mAh g?1 (2300 F g?1) at 2.0 A g?1 and outstanding cycling stability with 96.5 % of the initial capacity retained after 5000 cycles at 10 A g?1. Moreover, an all‐solid‐state hybrid supercapacitor (HSC) constructed with the CoO/Co‐Cu‐S and actived carbon shows a stable and high energy density of 90.7 Wh kg?1 at a power density of 800 W kg?1. 相似文献
6.
Dafei Yuan Yuan Guo Yan Zeng Qingrui Fan Jianjun Wang Yuanping Yi Xiaozhang Zhu 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(15):5012-5016
Air‐stable n‐type thermoelectric materials are recognized as an important and challenging topic in organic thermoelectrics (OTEs) because conventional n‐type OTE materials prepared by chemical doping are highly volatile upon exposure to air. Besides, doping efficiency and microstructure are hard to control with the incorporation of external dopants. We report herein the design and synthesis of unconventional n‐type OTE materials based on the diradicaloids 2DQQT‐S and 2DQQT‐Se, which are proved to be neutral single‐component organic conductors that exhibit an unprecedented air stability. Without external n‐doping, a pristine film of 2DQQT‐Se shows an electrical conductivity as high as 0.29 S cm?1 delivering a power factor of 1.4 μW m?1 K?2. Under ambient conditions, no decay in electrical conductivity is observed for over 260 hours. This work demonstrates that diradicaloids are promising candidates for air‐stable and high‐performance OTE materials. 相似文献
7.
Heng‐guo Wang Haidong Wang Zhenjun Si Qiang Li Qiong Wu Qi Shao Lanlan Wu Yu Liu Yinghui Wang Shuyan Song Hongjie Zhang 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(30):10310-10314
Bipolar redox organics have attracted interest as electrode materials for energy storage owing to their flexibility, sustainability and environmental friendliness. However, an understanding of their application in all‐organic batteries, let alone dual‐ion batteries (DIBs), is in its infancy. Herein, we propose a strategy to screen a variety of phthalocyanine‐based bipolar organics. The self‐polymerizable bipolar Cu tetraaminephthalocyanine (CuTAPc) shows multifunctional applications in various energy storage systems, including lithium‐based DIBs using CuTAPc as the cathode material, graphite‐based DIBs using CuTAPc as the anode material and symmetric DIBs using CuTAPc as both the cathode and anode materials. Notably, in lithium‐based DIBs, the use of CuTAPc as the cathode material results in a high discharge capacity of 236 mAh g?1 at 50 mA g?1 and a high reversible capacity of 74.3 mAh g?1 after 4000 cycles at 4 A g?1. Most importantly, a high energy density of 239 Wh kg?1 and power density of 11.5 kW kg?1 can be obtained in all‐organic symmetric DIBs. 相似文献
8.
Three‐Dimensional Nitrogen‐Doped Hierarchical Porous Carbon as an Electrode for High‐Performance Supercapacitors 下载免费PDF全文
Jing Tang Dr. Tao Wang Dr. Rahul R. Salunkhe Prof. Saad M. Alshehri Dr. Victor Malgras Prof. Yusuke Yamauchi 《Chemistry (Weinheim an der Bergstrasse, Germany)》2015,21(48):17293-17298
A facile and sustainable procedure for the synthesis of nitrogen‐doped hierarchical porous carbons with a three‐dimensional interconnected framework (NHPC‐3D) was developed. The strategy, based on a colloidal crystal‐templating method, utilizes nitrogenous dopamine as the precursor due to its unique properties, including self‐polymerization under mild alkaline conditions, coating onto various surfaces, a high carbonization yield, and well‐preserved nitrogen doping after heat treatment. The obtained NHPC‐3D possesses a high surface area of 1056 m2 g?1, a large pore volume of 2.56 cm3 g?1, and a high nitrogen content of 8.2 wt %. The NHPC‐3D is implemented as the electrode material of a supercapacitor and exhibits a specific capacitance as high as 252 F g?1 at a current density of 2 A g?1. The device also shows a high capacitance retention of 75.7 % at a higher current density of 20 A g?1 in aqueous electrolyte due to a sufficient surface area for charge accommodation, reversible pseudocapacitance, and minimized ion‐transport resistance, as a result of the advantageous interconnected hierarchical porous texture. These results showcase NHPC‐3D as a promising candidate for electrode materials in supercapacitors. 相似文献
9.
Self‐Assembling Synthesis of Free‐standing Nanoporous Graphene–Transition‐Metal Oxide Flexible Electrodes for High‐Performance Lithium‐Ion Batteries and Supercapacitors 下载免费PDF全文
The synthesis of nanoporous graphene by a convenient carbon nanofiber assisted self‐assembly approach is reported. Porous structures with large pore volumes, high surface areas, and well‐controlled pore sizes were achieved by employing spherical silica as hard templates with different diameters. Through a general wet‐immersion method, transition‐metal oxide (Fe3O4, Co3O4, NiO) nanocrystals can be easily loaded into nanoporous graphene papers to form three‐dimensional flexible nanoarchitectures. When directly applied as electrodes in lithium‐ion batteries and supercapacitors, the materials exhibited superior electrochemical performances, including an ultra‐high specific capacity, an extended long cycle life, and a high rate capability. In particular, nanoporous Fe3O4–graphene composites can deliver a reversible specific capacity of 1427.5 mAh g?1 at a high current density of 1000 mA g?1 as anode materials in lithium‐ion batteries. Furthermore, nanoporous Co3O4–graphene composites achieved a high supercapacitance of 424.2 F g?1. This work demonstrated that the as‐developed freestanding nanoporous graphene papers could have significant potential for energy storage and conversion applications. 相似文献
10.
Synthesis,Structure, and Air‐stable N‐type Field‐Effect Transistor Behaviors of Functionalized Octaazanonacene‐8,19‐dione 下载免费PDF全文
Chengyuan Wang Dr. Jing Zhang Dr. Guankui Long Prof. Dr. Naoki Aratani Prof. Dr. Hiroko Yamada Prof. Dr. Yang Zhao Prof. Dr. Qichun Zhang 《Angewandte Chemie (International ed. in English)》2015,54(21):6292-6296
Increasing the length of N‐heteroacenes or their analogues is highly desirable because such materials could have great potential applications in organic electronics. In this report, the large π‐conjugated N‐heteroquinone 6,10,17,21‐tetra‐((triisopropylsilyl)ethynyl)‐5,7,9,11,16,18,20,22‐octaazanonacene‐8,19‐dione (OANQ) has been synthesized and characterized. The as‐prepared OANQ shows high stability under ambient conditions and has a particularly low LUMO level, which leads to it being a promising candidate for air‐stable n‐type field‐effect transistors (FETs). In fact, FET devices based on OANQ single crystals have been fabricated and an electron mobility of up to 0.2 cm2 V?1 s?1 under ambient conditions is reported. More importantly, no obvious degradation was observed even after one month. Theoretical calculations based on the single crystal are consistent with the measured mobility. 相似文献
11.
Gem‐dinitromethyl‐substituted Energetic Metal–Organic Framework based on 1,2,3‐Triazole from in situ Controllable Synthesis 下载免费PDF全文
Dr. Hao Gu Dr. Qing Ma Dr. Shiliang Huang Dr. Zhenqi Zhang Dr. Qi Zhang Prof. Guangbin Cheng Prof. Hongwei Yang Prof. Guijuan Fan 《化学:亚洲杂志》2018,13(19):2786-2790
Synthesizing energetic metal–organic frameworks at ambient temperature and pressure has been always a challenge in the research area of energetic materials. In this work, through in situ controllable synthesis, energetic metal–organic framework gem‐dinitromethyl‐substituted dipotassium 4,5‐bis(dinitromethyl)‐1,2,3‐triazole with a “cage‐like” crystal packing was obtained and characterized. Most importantly, for the first time, we found that it could be successfully afforded with a catalytic effect of trifluoroacetic acid. This new compound exhibited its high density (2.04 g cm?3) at ambient temperature, superior detonation velocity (8715 m s?1) to that of lead azide (5877 m s?1) and comparable to that of RDX (8748 m s?1). Its detonation products are mainly N2 (48.1 %), suggesting it is also a green energetic material. The above‐mentioned performance indicates its potential applications in detonator devices as lead‐free primary explosive. 相似文献
12.
Yao‐Zu Zhang Dong‐Sheng Sun Ji‐Xing Gao Xiu‐Ni Hua Xiao‐Gang Chen Guang‐Quan Mei Wei‐Qiang Liao 《化学:亚洲杂志》2019,14(7):1028-1033
Piezoelectric materials are a class of important functional materials applied in high‐voltage sources, sensors, vibration reducers, actuators, motors, and so on. Herein, [(CH3)3S]3[Bi2Br9]( 1 ) is a brilliant semiconducting organic–inorganic hybrid perovskite‐type non‐ferroelectric piezoelectric with excellent piezoelectricity. Strikingly, the value of the piezoelectric coefficient d33 is estimated as ≈18 pC N?1. Such a large piezoelectric coefficient in non‐ferroelectric piezoelectric has been scarcely reported and is comparable with those of typically one‐composition non‐ferroelectric piezoelectrics such as ZnO (3pC N?1) and much greater than those of most known typical materials. In addition, 1 exhibits semiconducting behavior with an optical band gap of ≈2.58 eV that is lower than the reported value of 3.37 eV for ZnO. This discovery opens a new avenue to exploit molecular non‐ferroelectric piezoelectric and should stimulate further exploration of non‐ferroelectric piezoelectric due to their high stability and low loss characteristics. 相似文献
13.
Conductive Microporous Covalent Triazine‐Based Framework for High‐Performance Electrochemical Capacitive Energy Storage 下载免费PDF全文
Yajuan Li Shuanghao Zheng Xue Liu Pan Li Dr. Lei Sun Ruixia Yang Sen Wang Prof. Dr. Zhong‐Shuai Wu Prof. Dr. Xinhe Bao Prof. Dr. Wei‐Qiao Deng 《Angewandte Chemie (International ed. in English)》2018,57(27):7992-7996
Nitrogen‐enriched porous nanocarbon, graphene, and conductive polymers attract increasing attention for application in supercapacitors. However, electrode materials with a large specific surface area (SSA) and a high nitrogen doping concentration, which is needed for excellent supercapacitors, has not been achieved thus far. Herein, we developed a class of tetracyanoquinodimethane‐derived conductive microporous covalent triazine‐based frameworks (TCNQ‐CTFs) with both high nitrogen content (>8 %) and large SSA (>3600 m2 g?1). These CTFs exhibited excellent specific capacitances with the highest value exceeding 380 F g?1, considerable energy density of 42.8 Wh kg?1, and remarkable cycling stability without any capacitance degradation after 10 000 cycles. This class of CTFs should hold a great potential as high‐performance electrode material for electrochemical energy‐storage systems. 相似文献
14.
Feng Zou Prof. Xianluo Hu Dr. Yongming Sun Dr. Wei Luo Fangfang Xia Long Qie Yan Jiang Prof. Yunhui Huang 《Chemistry (Weinheim an der Bergstrasse, Germany)》2013,19(19):6027-6033
Zn2GeO4/N‐doped graphene nanocomposites have been synthesized through a fast microwave‐assisted route on a large scale. The resulting nanohybrids are comprised of Zn2GeO4 nanorods that are well‐embedded in N‐doped graphene sheets by in situ reducing and doping. Importantly, the N‐doped graphene sheets serve as elastic networks to disperse and electrically wire together the Zn2GeO4 nanorods, thereby effectively relieving the volume‐expansion/contraction and aggregation of the nanoparticles during charge and discharge processes. We demonstrate that an electrode that is made of the as‐formed Zn2GeO4/N‐doped graphene nanocomposite exhibits high capacity (1463 mAh g?1 at a current density of 100 mA g?1), good cyclability, and excellent rate capability (531 mAh g?1 at a current density of 3200 mA g?1). Its superior lithium‐storage performance could be related to a synergistic effect of the unique nanostructured hybrid, in which the Zn2GeO4 nanorods are well‐stabilized by the high electronic conduction and flexibility of N‐doped graphene sheets. This work offers an effective strategy for the fabrication of functionalized ternary‐oxide‐based composites as high‐performance electrode materials that involve structural conversion and transformation. 相似文献
15.
Reduced Graphene Oxide‐Supported TiO2 Fiber Bundles with Mesostructures as Anode Materials for Lithium‐Ion Batteries 下载免费PDF全文
Mengmeng Zhen Xiaohe Zhu Xiao Zhang Prof. Zhen Zhou Prof. Lu Liu 《Chemistry (Weinheim an der Bergstrasse, Germany)》2015,21(41):14454-14459
Although the synthesis of mesoporous materials is well established, the preparation of TiO2 fiber bundles with mesostructures, highly crystalline walls, and good thermal stability on the RGO nanosheets remains a challenge. Herein, a low‐cost and environmentally friendly hydrothermal route for the synthesis of RGO nanosheet‐supported anatase TiO2 fiber bundles with dense mesostructures is used. These mesostructured TiO2‐RGO materials are used for investigation of Li‐ion insertion properties, which show a reversible capacity of 235 mA h g?1 at 200 mA g?1 and 150 mA h g?1 at 1000 mA g?1 after 1000 cycles. The higher specific surface area of the new mesostructures and high conductive substrate (RGO nanosheets) result in excellent lithium storage performance, high‐rate performance, and strong cycling stability of the TiO2‐RGO composites. 相似文献
16.
Dr. Zaifang Li Guoqiang Ma Ru Ge Fei Qin Xinyun Dong Wei Meng Tiefeng Liu Jinhui Tong Fangyuan Jiang Yifeng Zhou Ke Li Xue Min Prof. Dr. Kaifu Huo Prof. Dr. Yinhua Zhou 《Angewandte Chemie (International ed. in English)》2016,55(3):979-982
Thick, uniform, easily processed, highly conductive polymer films are desirable as electrodes for solar cells as well as polymer capacitors. Here, a novel scalable strategy is developed to prepare highly conductive thick poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate (HCT‐PEDOT:PSS) films with layered structure that display a conductivity of 1400 S cm?1 and a low sheet resistance of 0.59 ohm sq?1. Organic solar cells with laminated HCT‐PEDOT:PSS exhibit a performance comparable to the reference devices with vacuum‐deposited Ag top electrodes. More importantly, the HCT‐PEDOT:PSS film delivers a specific capacitance of 120 F g?1 at a current density of 0.4 A g?1. All‐solid‐state flexible symmetric supercapacitors with the HCT‐PEDOT:PSS films display a high volumetric energy density of 6.80 mWh cm?3 at a power density of 100 mW cm?3 and 3.15 mWh cm?3 at a very high power density of 16160 mW cm?3 that outperforms previous reported solid‐state supercapacitors based on PEDOT materials. 相似文献
17.
M. Sc. Changting Wei Prof. Jinyong Zhuang Prof. Yali Chen Prof. Dongyu Zhang Prof. Wenming Su Prof. Zheng Cui 《Chemistry (Weinheim an der Bergstrasse, Germany)》2016,22(46):16576-16585
A novel cross‐linkable electron‐transport material has been designed and synthesized for use in the fabrication of solution‐processed OLEDs. The material exhibits a low LUMO level of ?3.51 eV, a high electron mobility of 1.5×10?5 cm2 V?1 s?1, and excellent stability. An average 9.3 % shrinkage in film thickness was observed for the film after thermal curing. A maximum external quantum efficiency (EQE) of 15.6 % (35.0 cd A?1) was achieved for blue‐phosphorescent OLEDs by spin‐coating and 13.8 % (31.0 cd A?1) for an ink‐jet‐printed device, both of which are better than the EQE of a control device prepared by vacuum‐deposition (see figure). 相似文献
18.
A first step towards the microfabrication of a thin‐film array based on an organic/inorganic sensor hybrid has been realized. The inorganic microsensor part incorporates a sensor membrane based on a chalcogenide glass material (Cu‐Ag‐As‐Se) prepared by pulsed laser deposition technique (PLD) combined with an PVC organic membrane‐based organic microsensor part that includes an o‐xylyene bis(N,N‐diisobutyl‐dithiocarbamate) ionophore. Both types of materials have been electrochemically evaluated as sensing materials for copper(II) ions. The integrated hybrid sensor array based on these sensing materials provides a linear Nernstian response covering the range 1×10?6–1×10?1 mol L?1 of copper(II) ion concentration with a fast, reliable and reproducible response. The merit offered by the new type of thin‐film hybrid array includes the high selectivity feature of the organic membrane‐based thin‐film microsensor part in addition to the high stability of the inorganic thin‐film microsensor part. Moreover, the thin‐film sensor hybrid has been successfully applied in flow‐injection analysis (FIA) for the determination of copper(II) ions using a miniaturized home‐made flow‐through cell. Realization of the organic/inorganic thin‐film sensor hybrid array facilitates the development of a promising sophisticated electronic tongue for recognition and classification of various liquid media. 相似文献
19.
Synthesis of Hierarchically Porous Sandwich‐Like Carbon Materials for High‐Performance Supercapacitors 下载免费PDF全文
Yiju Li Dr. Chaoji Chen Tingting Gao Dr. Dongming Zhang Dr. Xiaomei Huang Yue Pan Dr. Ke Ye Dr. Kui Cheng Dr. Dianxue Cao Dr. Guiling Wang 《Chemistry (Weinheim an der Bergstrasse, Germany)》2016,22(47):16863-16871
For the first time, hierarchically porous carbon materials with a sandwich‐like structure are synthesized through a facile and efficient tri‐template approach. The hierarchically porous microstructures consist of abundant macropores and numerous micropores embedded into the crosslinked mesoporous walls. As a result, the obtained carbon material with a unique sandwich‐like structure has a relatively high specific surface (1235 m2 g?1), large pore volume (1.30 cm3 g?1), and appropriate pore size distribution. These merits lead to a comparably high specific capacitance of 274.8 F g?1 at 0.2 A g?1 and satisfying rate performance (87.7 % retention from 1 to 20 A g?1). More importantly, the symmetric supercapacitor with two identical as‐prepared carbon samples shows a superior energy density of 18.47 Wh kg?1 at a power density of 179.9 W kg?1. The asymmetric supercapacitor based on as‐obtained carbon sample and its composite with manganese dioxide (MnO2) can reach up to an energy density of 25.93 Wh kg?1 at a power density of 199.9 W kg?1. Therefore, these unique carbon material open a promising prospect for future development and utilization in the field of energy storage. 相似文献
20.
Kai‐Min Zou Hong‐Yan Zeng Xiao‐Ju Cao Jian Yuan Gohi Bi Foua Claude Alain Sheng Xu Hao‐Bo Li Yi‐Wen Long 《化学:亚洲杂志》2019,14(23):4337-4344
A core‐shell NiAlO@polypyrrole composite (NiAlO@PPy) with a 3D “sand rose”‐like morphology was prepared via a facile in situ oxidative polymerization of pyrrole monomer, where the role of PPy coating thickness was investigated for high‐performance supercapacitors. Microstructure analyses indicated that the PPy was successfully coated onto the NiAlO surface to form a core‐shell structure. The NiAlO@PPy exhibited a better electrochemical performance than pure NiAlO, and the moderate thickness of the PPy shell layer was beneficial for expediting the electron transfer in the redox reaction. It was found that the NiAlO@PPy5 prepared at 5.0 mL L?1 addition amount of pyrrole monomer demonstrated the best electrochemical performance with a high specific capacitance of 883.2 F g?1 at a current density of 1 A g?1 and excellent capacitance retention of 91.82 % of its initial capacitance after 1000 cycles at 3 A g?1. The outstanding electrochemical performance of NiAlO@PPy5 were due to the synergistic effect of NiAlO and PPy, where the uniform network‐like PPy shell with the optimal thickness made electrolyte ions more easily accessible for faradic reactions. This work provided a simple approach for designing organic–inorganic core‐shell materials as high‐performance electrode materials for electrochemical supercapacitors. 相似文献