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Xia Xue Dong Faqin Nie Xiaoqin Pan Ning Liu Chang Ding Congcong Wang Junling Cheng Wencai He Huichao Sun Shiyong Zhang Yujing 《Journal of Radioanalytical and Nuclear Chemistry》2022,331(2):921-936
Journal of Radioanalytical and Nuclear Chemistry - A kind of amino groups modified polyacrylonitrile fibers (PAN-A) was prepared to extract uranium from organic-containing low-level radioactive... 相似文献
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利用原子转移自由基聚合(ATRP)方法, 分别在三氟甲苯、含氟离子液体以及三氟甲苯/含氟离子液体混合溶剂体系中合成了聚苯乙烯-co-聚(2,3,4,5,6-五氟苯乙烯)(PS-co-PPFS)共聚物, 通过1H NMR、19F NMR、元素分析以及凝胶渗透色谱法(GPC)对所得聚合物的分子链结构和组成进行了分析和表征. 随后, 利用静态呼吸图法分别在CS2, CHCl3 和CH2Cl2 中制备了有序多孔薄膜, 用扫描电子显微镜(SEM)观察其表面形貌, 并与利用分子量大小相当的聚苯乙烯均聚物(PS)制备的多孔薄膜进行了对比. 研究结果表明: 在三氟甲苯和含氟离子液体溶剂体系中, 均可利用ATRP 聚合方法获得窄分子量分布的PS-co-PPFS 共聚物(Mn=5200~7900 g·mol-1, i>Mw/Mn=1.12~1.22). 对聚合物薄膜的扫描电子显微镜(SEM)观察和分析显示: 分别以CS2, CHCl3 和CH2Cl2 作为溶剂, 利用静态呼吸图法均可制备出PS-co-PPFS 共聚物多孔薄膜. 然而, 与在CHCl3 和CH2Cl2 中制备的PS 均聚物多孔薄膜的表面形貌不同的是, PS-co-PPFS 共聚物多孔薄膜呈现出无序排列、平均孔径大小不同的两种孔结构; 在CHCl3 中制备所得薄膜的孔结构有序性相对较好, 两种孔的平均孔径分别为0.75 和0.37 μm. 相似文献
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Hu Wenyuan Dong Faqin Zhang Jing Liu Mingxue He Huichao Yang Dingming Deng Hongquan 《Research on Chemical Intermediates》2018,44(1):705-720
Research on Chemical Intermediates - A flaky photocatalytic composite of anatase@natural rutile(A@NR) was obtained using one-step microwave hydrothermal synthesis, which was designed to overcome... 相似文献
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Huichao Dai Jincheng Zou Yanbo Gao Zengyu Li Chenyang Zhang Guoqun Zhang Xiaobo Wang Chengliang Wang 《Journal of polymer science. Part A, Polymer chemistry》2022,60(6):992-1001
Organic electrode materials have attracted more and more attention for sodium-ion batteries (SIBs) that are regarded as one of the most promising alternatives of lithium-ion batteries, because they can endure the storage of large sodium ions (with a larger radius than that of lithium ions) without obvious volume change. Herein, we report a novel conjugated porous polymer (TPIP) based on triazine and imide as cathodes material for SIBs. TPIP has abundant redox-active sites, good thermal stability (400°C) and large specific surface area (306 m2 g−1). As a result, TPIP electrode delivered a specific capacity of 120 mAh g−1 after 50 cycles at a current density of 0.1 A g−1 and 85 mAh g−1 after 150 cycles at a current density of 1.0 A g−1. Ex-situ X-ray photoelectron spectra and Fourier transform infrared spectra showed that the TPIP electrodes reversibly stored three sodium ions per unit through the triazine rings and half of the carbonyl groups. These results deepen our understanding of charge storage mechanisms of polymers with triazine and imide units and will provide guidance for the future design of electrode materials for high-performance SIBs. 相似文献
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Yuhan Zhang Huichao Zhu Pin Sun Chang‐Kai Sun Hui Huang Shui Guan Hailong Liu Hangyu Zhang Chi Zhang Kai‐Rong Qin 《Electroanalysis》2019,31(7):1334-1341
In this study, a laser‐induced graphene (LIG) loaded platinum nanoparticles (PtNPs) was prepared for precise, rapid and non‐enzymatic electrochemical detection of hydrogen peroxide (H2O2). The commercial PI films were used as the substrate of LIG. In order to improve the electrochemical performance of LIG, a layer of PtNPs catalyst was fabricated through a magnetron sputtering process on the surface of LIG (PtLIG). Under optimized conditions, a linear relationship between H2O2 reduction current and H2O2 concentration was recorded, the correlation coefficient R2 is 0.9919 with the detection limit of 0.1 μM (S/N=3) and the sensitivity of 248.4 μA mM?1cm?2. Moreover, the PtLIG exhibits excellent selectivity, reproducibility and repeatability. Because of these remarkable advantages, we believe that PtLIG will provide a wider range of applications in biosensors and bioelectronic devices. 相似文献