层状双氢氧化物析氧催化剂的研究进展  

Research progress in layered double hydroxides catalysts for oxygen evolution reaction

作　　者：谢博尧 张纪梅[1] 郝帅帅 毕明刚 朱海彬 张丽萍 XIE Bo-yao;ZHANG Ji-mei;HAO Shuai-shuai;BI Ming-gang;ZHU Hai-bin;ZHANG Li-ping(State Key Laboratory of Hollow Fiber Membrane Materials and Membrane Technology,Tianjin Polytechnic University,Tianjin 300387,China)

机构地区：[1]天津工业大学中空纤维膜材料与膜过程国家重点实验室

出　　处：《材料工程》2020年第1期1-9,共9页Journal of Materials Engineering

基　　金：国家自然科学基金项目(21106101);天津市自然科学基金项目(12JCZDJC29500,13JCQNJC06300)

摘　　要：层状双氢氧化物具有制备简单,层间客体可调节,合成成本较低,稳定性较好等优点,因此成为析氧催化剂的研究热点,但仍存在电荷传输速率低,过电位相对较高等问题,因此需要对其改性来加快其大规模应用。首先介绍了层状双氢氧化物的结构特点,简述了其析氧反应的催化机理,然后总结了不同种类的优化改性策略来增强其催化活性。优化改性方法分别包括:与导电基材复合;合成超薄纳米片法;与石墨烯复合法;杂化改性法。重点探讨了层状双氢氧化物析氧催化剂在电解水制氢方面的应用,提出了不同改性方法的优缺点,阐明将其适当结合,有利于制备更高效的析氧催化剂,最后指出了这类催化剂仍面临的问题:回收率较低,催化剂稳定性和可实现的电流密度尚未达到工业化需求,无法实现大规模制备等难点。The layered double hydroxides become research hot spot of oxygen evolution catalyzer for its easy preparation,feasible moderation of interlayer object,low cost and good stability but due to its low transmission speed of its electric charge,higher overpotential,so the modification is needed before mass application.The constructional character of the layered twinned material was firstly introduced,the catalytic mechanism of its oxygen evolution reaction was briefly described,then different kinds of optimization modification strategies to enhance its catalytic activity were introduced.The optimization modification strategies include:combination with conductive substrate,synthesis ultrathin nanometer plate,graphene compounding process,hybrid modification.The application of the stratified dihydride oxygen evolution catalyst in electrolysis of water to hydrogen and the advantages and disadvantages of different modification methods were put forward.The better-efficient oxygen evolution catalyst can be achieved through different kinds of modification.In the end,the difficulties in this kind of catalyzer were pointed out,including low recycle rate,catalyst stability,current density not meeting the requirements of industrialization and massive production.

关 键 词：催化剂 电解 氢 层状双氢氧化物 

分 类 号：O643.36[理学—物理化学]