典型文献
Unravelling the essential difference between TiOx and AlOx interface layers on Ta3N5 photoanode for photoelectrochemical water oxidation
文献摘要：
Tantalum nitride (Ta3N6) is a very promising photoanode material due to its narrow band gap (2.1 eV)and suitable band alignment for solar water splitting.However,it suffers from severe photocorrosion during water oxidation.In this work,it was found that surface passivation by AlOx and TiOx layers results in dramatically different PEC performance of Ta3N5 photoanode for water oxidation.The mechanism study indicates that the negative charges on AlOx can generate additional field to promote separation of photogenerated charges,while the positive charges on TiOx layer show the opposite effect.As a result,the Ta3N5 based photoanode modified with AlOx layer gives a high photocurrent of 12.5 mA cm-2 for 24 h at 1.23 V versus the reversible hydrogen electrode (RHE).Dynamic analysis implies that the hole extrac-tion and transfer are significantly improved by the modification with the AlOx layer.This work reveals the importance of the charges on surface passivation layer in interface engineering of photoelectrodes.
文献关键词：
中图分类号：
作者姓名：
Yongle Zhao;Huichen Xie;Wenwen Shi;Hong Wang;Chenyi Shao;Can Li
作者机构：
State Key Laboratory of Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian National Laboratory for Clean Energy,Dalian 116023,Liaoning,China;University of Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]Yongle Zhao;Huichen Xie;Wenwen Shi;Hong Wang;Chenyi Shao;Can Li-.Unravelling the essential difference between TiOx and AlOx interface layers on Ta3N5 photoanode for photoelectrochemical water oxidation)[J].能源化学,2022(01):33-37
A类：
Ta3N5,Ta3N6
B类：
Unravelling,essential,difference,between,TiOx,AlOx,interface,layers,photoanode,photoelectrochemical,water,oxidation,Tantalum,nitride,very,promising,material,due,its,narrow,band,gap,eV,suitable,alignment,solar,splitting,However,suffers,from,severe,photocorrosion,during,In,this,work,was,found,that,surface,passivation,by,results,dramatically,different,PEC,performance,mechanism,study,indicates,negative,charges,additional,field,promote,separation,photogenerated,while,positive,show,opposite,effect,modified,gives,high,photocurrent,mA,versus,reversible,hydrogen,RHE,Dynamic,analysis,implies,hole,extrac,transfer,are,significantly,improved,modification,This,reveals,importance,engineering,photoelectrodes
AB值：
0.557445
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