Constructing Multiple Heterostructures on Nickel Oxide Using Rare-earth Oxide and Nickel as Efficient Bifunctional Electrocatalysts for Overall Water Splitting

Sha W, Song Y, Liu P, Wang J, Xu B, Feng X, Guo J (2022)

Publication Type: Journal article

Publication year: 2022

Journal

ChemCatChem Wiley-VCH Verlag

Book Volume: 14

Article Number: e202101975

Journal Issue: 13

DOI: 10.1002/cctc.202101975

Abstract

Constructing heterostructured electrocatalyst is a promising strategy to explore inexpensive and effective catalysts towards oxygen evolution reaction (OER), hydrogen evolution reaction (HER) and the overall water splitting (OWS). Here, amorphous NiO 2D layers decorated with Ni and rare earth oxide (REOx) nanoparticles, which possess multiple heterostructures (Ni−NiO and REOx-NiO), have been synthesized by the sequential electrodeposition on carbon cloth. The electrocatalytic performances for the prepared Er2O3/Ni−NiO and CeO2/Ni−NiO have been evaluated, exhibiting improved HER (39 mV@10 mA cm−2) and OER (318 mV@50 mA cm−2) activities in contrast to the single component, respectively. Additionally, the two-electrode system (Er2O3/Ni−NiO//CeO2/Ni−NiO) presents an excellent OWS property which displays a low potential of 1.58 V to reach 10 mA cm−2. This work helps to deepen the understanding of the synergetic interaction between dissimilar materials in heterostructured catalyst, and provides guidance for the further exploration and evolution of nanomaterials in green energy conversion technology.

Involved external institutions

Taiyuan University of Technology CN China (CN) Shanxi Yuci Broad Wire Products Co.,Ltd CN China (CN)

How to cite

APA:

Sha, W., Song, Y., Liu, P., Wang, J., Xu, B., Feng, X., & Guo, J. (2022). Constructing Multiple Heterostructures on Nickel Oxide Using Rare-earth Oxide and Nickel as Efficient Bifunctional Electrocatalysts for Overall Water Splitting. ChemCatChem, 14(13). https://dx.doi.org/10.1002/cctc.202101975

MLA:

Sha, Wenbo, et al. "Constructing Multiple Heterostructures on Nickel Oxide Using Rare-earth Oxide and Nickel as Efficient Bifunctional Electrocatalysts for Overall Water Splitting." ChemCatChem 14.13 (2022).

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