Insight into the Transition‐Metal Hydroxide Cover Layer for Enhancing Photoelectrochemical Water Oxidation

2020 ◽  
Author(s):  
Xingming Ning ◽  
Peiyao Du ◽  
Zhengang Han ◽  
Jing Chen ◽  
Xiaoquan Lu
Nano Letters ◽  
2015 ◽  
Vol 15 (4) ◽  
pp. 2498-2503 ◽  
Author(s):  
Kai-Yang Niu ◽  
Feng Lin ◽  
Suho Jung ◽  
Liang Fang ◽  
Dennis Nordlund ◽  
...  

2016 ◽  
Vol 7 (7) ◽  
pp. 4391-4399 ◽  
Author(s):  
Zhiliang Wang ◽  
Yu Qi ◽  
Chunmei Ding ◽  
Dayong Fan ◽  
Guiji Liu ◽  
...  

Charge transfer has been demonstrated to have a fundamental role in particulate Ta3N5electrode for achieving high efficient photoelectrochemical water oxidation.


2015 ◽  
Vol 1776 ◽  
pp. 1-6 ◽  
Author(s):  
Alka Pareek ◽  
Pradip Paik ◽  
Pramod H. Borse

ABSTRACTIn this work we have synthesized the colloidal particles of transition metal-hydroxide (M= Ni, Co, Mn, Fe) by a simple chemical precipitation method. The surface of spray deposited CdS thin films were modified using nano-colloids to utlize them as water oxidation catalysts (WOC) for the photoelectrochemical cell (PEC). A systematic comparison of the PEC performance of modified and unmodified film is carried out to understand the role of co-catalyst. Ni(OH)2 modification yields 3.4 times higher photocurrent density than bare CdS photoanode, and exhibits hydrogen-evolution rate of 600 μmol/hr. Fe(OH)2 modified film shows best stability of 8 hours as compared to the others.


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