Nanocarbon-Enhanced 2D Photoelectrodes: A New Paradigm in Photoelectrochemical Water Splitting.
Nanocarbon-Enhanced 2D Photoelectrodes: A New Paradigm in Photoelectrochemical Water Splitting.
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纳米碳增强二维光电极：光电化学水分解的新范式
DOI：
10.1007/s40820-020-00545-8
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发表时间：
2020-11-13
影响因子：
26.6
通讯作者：
Ostrikov K
中科院分区：
文献类型：
--
作者：
Ke J;He F;Wu H;Lyu S;Liu J;Yang B;Li Z;Zhang Q;Chen J;Lei L;Hou Y;Ostrikov K
系统地综述了纳米碳助催化剂用于水裂解的层状集成光电极。建立并分析了层状集成光电极的本征结构、优化结构与水分解性能之间的关系。各种合成策略和组装程序严格审查，以提高水分解性能的层状集成光电极。概述了最大限度地提高光电化学水分解效率的当前挑战和未来方向。太阳能光电化学（PEC）水分解系统是将太阳能转化为清洁和可持续的化学能的非常有前途的系统。在这样的PEC系统中，集成光电极包括用于吸收太阳能的光收集器、用于传输光生电荷载流子的夹层和用于触发氧化还原反应的助催化剂。因此，理解光电极的内在结构特性和功能之间的相关性是至关重要的。在这里，我们严格审查各种2D层状光电阳极/光电阴极，包括石墨碳氮化物，过渡金属二硫属化物，层状双氢氧化物，层状卤氧化铋纳米片，和MXenes，结合先进的纳米碳（碳点，碳纳米管，石墨烯和graphdiyne）作为助催化剂组装集成光电极的析氧/析氢反应。分析了PEC分解水的基本原理、光电极的物理化学性质及相关的催化反应。详细介绍了组装二维光电极与纳米碳，以提高PEC性能的策略。对二维光电极与纳米碳助催化剂的相互作用机理进行了进一步的探讨。确定了该领域的挑战和机遇，以指导未来的研究，以最大限度地提高PEC水裂解的转化效率。
Layered integrated photoelectrodes for water splitting incorporating nanocarbon co-catalysts are systematically reviewed. The correlations between intrinsic structures, optimized configurations, and water splitting performances of layered integrated photoelectrodes are established and analyzed. Various synthetic strategies and assembling procedures are critically examined to enhance water splitting performance of layered integrated photoelectrodes. Current challenges and future directions for maximizing the efficiency of photoelectrochemical water splitting are outlined. Solar-driven photoelectrochemical (PEC) water splitting systems are highly promising for converting solar energy into clean and sustainable chemical energy. In such PEC systems, an integrated photoelectrode incorporates a light harvester for absorbing solar energy, an interlayer for transporting photogenerated charge carriers, and a co-catalyst for triggering redox reactions. Thus, understanding the correlations between the intrinsic structural properties and functions of the photoelectrodes is crucial. Here we critically examine various 2D layered photoanodes/photocathodes, including graphitic carbon nitrides, transition metal dichalcogenides, layered double hydroxides, layered bismuth oxyhalide nanosheets, and MXenes, combined with advanced nanocarbons (carbon dots, carbon nanotubes, graphene, and graphdiyne) as co-catalysts to assemble integrated photoelectrodes for oxygen evolution/hydrogen evolution reactions. The fundamental principles of PEC water splitting and physicochemical properties of photoelectrodes and the associated catalytic reactions are analyzed. Elaborate strategies for the assembly of 2D photoelectrodes with nanocarbons to enhance the PEC performances are introduced. The mechanisms of interplay of 2D photoelectrodes and nanocarbon co-catalysts are further discussed. The challenges and opportunities in the field are identified to guide future research for maximizing the conversion efficiency of PEC water splitting.
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