张继方/ 助理研究员 （2021）

   主要从事开发具有可见光响应的氧化物、硫（氧）化物及氮（氧）化物无机半导体材料，通过结晶优化，形貌控制以及表面修饰等实验手段将这一材料应用于太阳能光催化及光电化学分解水制氢反应，在注重催化剂效率的同时，兼顾成本控制及可行性分析，致力于开发出具有一定工业示范前景的光催化材料和反应。主要方向：（1）开发低价、高效的氧硫（氮）化物光催化材料的合成方法；（2）基于Z-体系理念实现光催化及光电化学分解水全反应；（3）无机半导体光催化分解水反应机理探索。  Our group aims at developing new photocatalytic and photoelectrochemical water splitting materials and devices, which use sunlight as energy input to sustainably produce H2 as clean fuel. To make it commercially viable, we must consider not only elevating its energy conversion efficiency, but also the extending the stability and reducing the costs. Having these factors in mind, we find that transition metal oxides, oxysulfides and (oxy)nitrides with visible responses are candidates with great prospect. At the moment, the state-of-the-art energy conversion efficiency is still rather low, but our preceding research has shown there is plenty of room for improvement with careful control of crystallinity, morphology and surface treatment.  The main research interests of our group are:1. Developing cost effective synthetic methods for high performance transition metal oxysulfides and (oxy)nitrides for H2 and O2 evolution reactions.2. Realizing high overall water splitting efficiency with electrode- or powder-based Z-scheme systems.3. Gaining mechanistic understanding of photocatalytic and photoelectrochemical processes with advanced characterizations, such as intensity modulated photocurrent spectroscopy and surface photovoltage spectroscopy.