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Role of Transition Metal-Hydroxide (M-OHx , M=Mn, Fe, Ni, Co) Co-catalyst Loading : Efficiency and Stability of CdS Photoanode

Published online by Cambridge University Press:  24 April 2015

Alka Pareek ,
Pradip Paik  and
Pramod H. Borse
Alka Pareek
Affiliation:
Center for nanomaterials, ARCI, Balapur PO., Hyderabad, Telangana, India SEST, Hyderabad Central University, Hyderabad, Telangana, India.
Pradip Paik
Affiliation:
SEST, Hyderabad Central University, Hyderabad, Telangana, India.
Pramod H. Borse
Affiliation:
Center for nanomaterials, ARCI, Balapur PO., Hyderabad, Telangana, India
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Abstract

In 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.

Keywords

II-VIoptical propertiesphotochemical
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1776: Symposium J – Latest Advances in Solar Water Splitting , 2015 , pp. 1 - 6
Copyright
Copyright © Materials Research Society 2015 

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References

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