Photoelectrochemical activity of CuO-CdS heterostructured catalyst for CO2 reduction

Tarek, Mostafa and Karim, Kaykobad Md Rezaul and Sumaya, Sarmin and Ong, Huei Ruey and Hamidah, Abdullah and Cheng, Chin Kui and Khan, Maksudur Rahman (2020) Photoelectrochemical activity of CuO-CdS heterostructured catalyst for CO2 reduction. In: IOP Conference Series: Materials Science and Engineering, Energy Security and Chemical Engineering Congress , 17-19 July 2019 , Kuala Lumpur, Malaysia. pp. 1-11., 736 (042023). ISSN 1757-8981

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Abstract

The present study explored the efficiency of a p-n heterostructured hybrid catalyst CuO-CdS to convert CO2 selectively into methanol by photoelectrochemical (PEC) method under concurrent visible light irradiation and a bias potential -0.4 V vs. NHE. The results showed that the inclusion of CdS with CuO significantly enhanced the activity of PEC CO2 reduction to produce methanol by facilitating the separation of photogenerated electron-hole (e-/h+) pairs through the p-n heterostructured architectures. The yield of methanol, the incident photon current efficiency (IPCE) and quantum efficiency (QE) in PEC CO2 reduction were achieved 35.65 μmoleL-1cm-2, 20.24% and 24.11%, respectively. The present work bears a new understanding into the fabrication of high-performable artificial p-n type heterostructured catalyst which is capable to function as a catalyst for photocathode for the reduction of CO2 and remarkable improvement in methanol yield under visible light illumination.

Item Type: Conference or Workshop Item (Lecture)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Carbon dioxide; Electrocatalysts; Chemical reduction
Subjects: Q Science > QD Chemistry
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Faculty/Division: Institute of Postgraduate Studies
Faculty of Chemical and Process Engineering Technology
Centre of Excellence: Centre of Excellence for Advanced Research in Fluid Flow
Depositing User: Mr Muhamad Firdaus Janih@Jaini
Date Deposited: 28 Dec 2022 03:35
Last Modified: 28 Dec 2022 03:35
URI: http://umpir.ump.edu.my/id/eprint/36005
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