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二维金属有机框架材料(MOFs)由于具备高比表面积、 多孔性以及丰富的活性位点等优异特性而受到广泛关注, 并且在电催化领域展现出巨大的应用潜力. 研究者们已在二维MOFs的可控制备与电催化性能调控方面取得许多突破性进展, 显示出相关研究对开发高性能电催化剂的关键作用. 本文总结了二维MOFs的自上而下和自下而上合成策略以及二维MOFs衍生物的典型合成方法, 概述了二维MOFs在各尺度下的电催化性能调控策略, 并介绍了各种合成方法和调控策略在电催化中的应用. 最后讨论了该领域面临的挑战, 并对未来的发展方向进行了展望. 相似文献
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超薄二维金属有机框架材料(MOF)纳米材料是MOF材料中的一类,不同于传统体相MOF材料,超薄片状结构赋予了它高比表面积、丰富的配位不饱和的金属位点等独特性质,能够有效改善MOF在催化、分离和传感等领域中的性能。本文综述了近年来国内外在超薄二维MOF纳米材料的构建及制备方法的研究进展,其中包括自上而下法、自下而上法以及独立于二者的二维氧化物模板牺牲法等。同时,本文详细讨论了超薄二维MOF纳米材料在气体吸附与气体分离、催化、能量储存和传感平台等领域的应用前景,并对未来超薄二维MOF纳米材料的研究面临的挑战和机遇做了进一步的分析。 相似文献
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金属卟啉是一种重要的金属-有机复合物,在光电转换器件、催化、传感、医学等领域有着广阔的应用前景。对无机二维纳米材料(石墨烯或过渡金属硫属化合物等)的广泛研究促使金属-有机二维纳米材料成为当前的研究热点之一。本文针对金属-有机以及卟啉二维纳米材料的研究现状,在简要回顾金属-有机二维纳米材料发展历史的基础上,详细总结了金属卟啉单分散二维纳米晶和二维薄膜的制备方法,综述了其当前在太阳能电池、光电催化以及光学传感等方面的应用,最后讨论了金属卟啉二维纳米材料当前面临的研究问题及未来可能的发展方向。 相似文献
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开发能量转化和存储的高性能电极材料对于新能源利用和储能元件的改进至关重要.设计合成高表面积和较大层间距的二维电极材料是提高电催化活性和储能性能的有效方法.近年来,在过渡金属硫族化合物材料合成快速发展的基础上,MoTe2更大的层间距和较好的导电性使其在各个领域得到了广泛的研究,其中物相工程、形貌控制和缺陷工程技术逐渐被用于提升MoTe2的电催化产氢和储能性能.这篇综述对MoTe2在电催化产氢以及能量存储方面的研究进展进行了总结,展示了MoTe2较高的电催化产氢活性和优异的储能性能,是一种具有发展潜力的二维材料.与此同时,就该领域存在的问题和应用前景进行了展望. 相似文献
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综述了新型过渡金属碳化物和/或氮化物(MXenes)二维纳米材料的合成及其在电化学能源存储与转换中应用的研究进展,这些应用可以分为如下三类:二次电池、超级电容器以及电化学催化。 由于具有二维结构、金属导电性、亲水性表面以及其它优点,MXene二维纳米材料在这些应用领域展示了良好的性能,而且还可以通过嵌入、复合、掺杂、组装等方法来进一步提高其电化学性能。 本文为新型MXenes以及相关材料的开发、合成和应用提供了思路,这种新型MXenes 材料可以用于能量存储与转换、电子和催化等领域。 相似文献
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水分裂、金属-空气电池和燃料电池等能源转换技术对解决未来的能源危机和环境问题至关重要.氧还原反应(ORR)、氧析出反应(OER)和氢析出反应(HER)作为其核心反应,存在反应动力学速率较慢的问题,因此,开发研制高效的非贵金属电催化剂具有重要意义.金属有机骨架(MOFs)材料因具有高度可调的组成和多孔晶体结构,在不同的应用领域引起了越来越多的关注.中空MOFs纳米材料具有MOFs材料高度可调的组成和结构优势,又具有中空结构纳米材料的优点(如更快的物质传输、更丰富的孔隙率、灵活多变的活性组分、更多的暴露活性位点及对苛刻条件的更好相容性等),在电催化领域显现出巨大的应用潜力.本文对近几年来基于中空结构MOFs材料的制备及在电催化方面应用的研究进展进行了综合评述,并对该领域面临的挑战和发展前景进行了总结和展望. 相似文献
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作为电化学生物传感器中最重要的研究内容之一,葡萄糖生物传感器在数十年的发展中取得了巨大进展。本文综述了近年来利用纳米技术设计的新型电化学葡萄糖传感器的主要研究进展,并从纳米材料维度分类进行了讨论。其中,零维纳米材料主要讨论了包括金纳米颗粒、银纳米颗粒以及铜、铂等金属纳米颗粒材料; 一维纳米材料主要讨论了通过模板法制备的金属或金属氧化物纳米线以及单臂或者多壁纳米管材料; 二维纳米材料主要总结了以碳为基础的石墨烯材料和一些片状的金属材料。纳米材料对电化学葡萄糖传感器的影响主要集中在生物相容性、增强检测灵敏度、酶的固定等方面。此外,本文也对电化学葡萄糖传感器的今后发展做了展望。 相似文献
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With the increased energy demand,developing renewable and clean energy technologies becomes more and more significant to mitigate climate warming and alleviate the environmental pollution.The key point is design and synthesis of low cost and efficient materials for a wide variety of electrochemical reactions.Over the past ten years,two-dimensional(2D)nanomaterials that graphene represents have been paid much attention as a class of the most promising candidates for heterogeneous electrocatalysts in electrochemical storage and conversion.Their unique properties,such as good chemical stability,good flexibility,and good electronic properties,along with their nanosized thickness and large specific area,make them exhibit comprehensively good performances for energy storage and conversion.Here,we present an overview on the recent advances in electrochemical applications of graphene,graphdiyne,transition metal dichalcogenides(TMDs),and MXenes for supercapacitors(SCs),oxygen reduction reaction(ORR),and hydrogen evolution reaction(HER). 相似文献
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纳米材料修饰电极在电化学分析中的应用研究进展 总被引:1,自引:0,他引:1
综述了纳米材料修饰电极在电化学分析中的应用研究.主要总结了国内外纳米金属材料、纳米金属氧化物材料、碳纳米管与碳纳米管复合物以及其他纳米材料在电化学分析中的应用研究,并指出了纳米材料修饰电极在电化学分析应用中存在的问题. 相似文献
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Somayeh Tajik Hadi Beitollahi Zahra Dourandish Peyman Mohammadzadeh Jahani Iran Sheikhshoaie Mohammad Bagher Askari Parisa Salarizadeh Fariba Garkani Nejad Dokyoon Kim Soo Young Kim Rajender S. Varma Mohammadreza Shokouhimehr 《Electroanalysis》2022,34(7):1065-1091
Non-precious transition metal oxide nanomaterials offer numerous opportunities for various cost-effective electrochemical applications. This review article features the design and advancement of such nanomaterials with unique features applied for the fabrication of electrochemical devices. Also, it discusses various new syntheses of transition metal oxide nanoparticles (TMO NPs) via multiple chemicophysical and biological procedures. Further, the novel appliances of the TMO NPs with varying sizes and morphologies are appraised. The advantages and challenges of a number of investigations on the TMO NPs towards electrochemical applications are addressed with their standpoint of cost-effectiveness, applicability, and the efficiency of the introduced nanostructures for the industrial applications. 相似文献
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Self-assembly is one of the most used strategies in the controlled synthesis and design of well-organized nanomaterials for various applications in diverse realms namely catalysis, sensors, microelectronics, energy storage, and energy conversion. It is quite common to see reports on the synthesis and design of several self-assembled nanomaterials for the application in the catalysis of various chemical, photochemical, and electrochemical reactions and processes. Nevertheless, a combined overview on the synthetic strategies for self-assembled nanomaterials has not been reported in any form in literature. Owing to the current interest shown and the future significance on the self-assembled nanomaterials, it is highly essential to have such an elaborated review on the progress and perspectives of synthesis of self-assembled nanomaterials and their subsequent application to catalysis of various chemical, photochemical, and electrochemical reactions and processes. In this review, we have highlighted various synthetic methodologies used so far for fabricating the self-assembled nanomaterials that includes Langmuir–Blodgett method, layer-by-layer assembly, amphiphilic (artificial and bio) self-assembly, and template-free approach. Nanomaterials derived from the above mentioned methods in various catalysis reactions are also highlighted in detail with an emphasis on confronts and prospects in the field of materials self-assembling and its concomitant application to catalysis. 相似文献
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Nanomaterial-enabled electrochemical sensors are designed as an economical, efficient, and user-friendly analytical tool for on-site and routine nitrate analysis over a wide range of environmental samples. The remarkable advances and tunable attributes of nanomaterials have greatly improved the analytical performance of electrochemical nitrate sensors. In this review, a comprehensive elucidation of the recent advances in nanomaterial-based electrochemical nitrate sensors is presented. The review firstly provides a general introduction, followed by typical electrochemical sensing methods. The next two sections detail various nanomaterials, including graphene derivatives, carbon nanotubes/fibers, metal/bimetal/metal oxide nanoparticles, and conducting polymers for modifying electrodes in enzymatic and non-enzymatic electrochemical nitrate sensors. Finally, the perspectives and current challenges in achieving real-world applications of nanomaterial-based electrochemical nitrate sensors are outlined. 相似文献
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Nitric oxide (NO) and nitrite are of significant importance in clinical/biomedical research and in quality control applications for the food industry. Electrochemical sensing of NO and nitrite has been extensively pursued over the last two years. Efficient interfaces based on functional nanomaterials and bioactive molecules (e.g. metals, metal oxides, carbon-based nanomaterials, conducting polymers, and heme proteins) have been widely explored toward sensor development. Herein, we review the most recent advances in the electrochemical sensing of NO and nitrite, while the critical roles of nanomaterials in the design of advanced electrochemical sensors are highlighted. 相似文献
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Myung Jun Kim Mutya A. Cruz Feichen Yang Benjamin J. Wiley 《Current Opinion in Electrochemistry》2019
Scalable, solution-phase syntheses of metal nanowires are enabling their increased use in electrochemical processes. This review highlights recent results demonstrating how metal nanowires can exhibit better durability and higher activity than traditional metal nanoparticle electrocatalysts on carbon supports. Metal nanowires can also form interconnected two-dimensional and three-dimensional (3D) networks that eliminate the need for a carbon support, thus eliminating the detrimental effects of carbon corrosion. Porous 3D networks of nanowires can be used as flow-through electrodes with the highest specific surface areas and mass transport coefficients obtained to date, enabling dramatic increases in the productivity of electrochemical reactions. Nanowire networks are also serving as 3D current collectors that improve the capacity of batteries. The tunable surface structure and dimensions of metal nanowires offer researchers a new opportunity to create electrodes that are tailored from the atomic scale to the microscale to improve electrochemical performance. 相似文献
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FANG Wensheng HUANG Lei ZAMAN Shahid WANG Zhitong HAN Youjia XIA Bao Yu 《高等学校化学研究》2020,36(4):611-621
Due to their unique electronic and structural properties triggered by high atomic utilization and easy surface modification, two-dimensional(2D) materials have prodigious potential in electrocatalysis for energy conversion technology in recent years. In this review, we discuss the recent progress on two-dimensional nanomaterials for electrocatalysis. Five categories including metals, transition metal compounds, non-metal, metal-organic framework and other emerging 2D nanomaterials are successively introduced. Finally, the challenges and future development directions of 2D materials for electrocatalysis are also prospected. We hope this review may be helpful for guiding the design and application of 2D nanomaterials in energy conversion technologies. 相似文献