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An Advanced Quaternary Composite for Efficient Water Splitting

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submitted on 2023-12-31, 08:13 and posted on 2023-12-31, 08:48 authored by Mizaj Shabil Sha, Farzana N.Musthafa, Assem Alejli, Johaina Khalid Alahmad, Bagmita Bhattacharyya, Bijandra Kumar, Aboubakr M. Abdullah, Kishor Kumar Sadasivuni

Electrochemical water splitting is a promising pathway for effective hydrogen (H2) evolution in energy conversion and storage, with electrocatalysis playing a key role. Developing efficient, cost-effective and stable catalysts or electrocatalysts is critical for hydrogen evolution from water splitting. Herein, we evaluated a graphene-modified nanoparticle catalyst for hydrogen evolution reaction (HER). The electrocatalytic H2 production rate of reduced graphene oxide-titanium oxide-nickel oxide-zinc oxide (rGO–TiO2–NiO–ZnO) is high and exceeds that obtained on components alone. This improvement is due to the presence of rGO as an electron collector and transporter. Moreover, a current density of 10 mA/cm2 was recorded at a reduced working potential of 365 mV for the nanocomposite. The electronic coupling effect between the nanoparticle components at the interface causes the nanoparticle's hydrogen evolution reaction catalytic activity.

Other Information

Published in: Catalysis Letters
License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: https://dx.doi.org/10.1007/s10562-023-04339-6

Funding

Open Access funding provided by the Qatar National Library.

History

Language

  • English

Publisher

Springer Nature

Publication Year

  • 2023

License statement

This Item is licensed under the Creative Commons Attribution 4.0 International License.

Institution affiliated with

  • Qatar University
  • Center for Advanced Materials - QU

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