Construction of CoP2-Mo4P3/NF Heterogeneous Interfacial Electrocatalyst for Boosting Water Splitting

Chen, Yafeng; Meng, Ge; Chang, Ziwei; Dai, Ningning; Chen, Chang; Hou, Xinmei; Cui, Xiangzhi

doi:10.3390/nano13010074

Open AccessArticle

Construction of CoP₂-Mo₄P₃/NF Heterogeneous Interfacial Electrocatalyst for Boosting Water Splitting

by

Yafeng Chen

^1,2,

Ge Meng

¹,

Ziwei Chang

¹,

Ningning Dai

³,

Chang Chen

¹,

Xinmei Hou

^2,*

and

Xiangzhi Cui

^1,4,*

¹

The State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

²

Beijing Advanced Innovation Center for Materials Genome Engineering, Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China

³

Shanghai Motor Vehicle Inspection Certification & Tech Innovation Center Co., Ltd., Shanghai 201805, China

⁴

School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310021, China

^*

Authors to whom correspondence should be addressed.

Nanomaterials 2023, 13(1), 74; https://doi.org/10.3390/nano13010074

Submission received: 3 December 2022 / Revised: 20 December 2022 / Accepted: 22 December 2022 / Published: 23 December 2022

(This article belongs to the Special Issue Nanostructure-Based Energy Electrocatalysis)

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Abstract

Developing highly efficient, cost effective and durable bifunctional electrocatalyst remains a key challenge for overall water splitting. Herein, a bifunctional catalyst CoP₂-Mo₄P₃/NF with rich heterointerfaces was successfully prepared by a two-step hydrothermal-phosphorylation method. The synergistic interaction between CoP₂ and Mo₄P₃ heterogeneous interfaces can optimize the electronic structure of active sites, leading to the weak adsorption of H on the Mo sites and the increased redox activity of the Co site, resultantly improving the HER/OER bifunctional catalytic activity. The synthesized CoP₂-Mo₄P₃/NF catalyst exhibits excellent electrocatalytic activity in 1.0 M KOH with low overpotentials of 77.6 and 300.3 at 100 mA cm⁻² for HER and OER, respectively. Additionally, the assembled CoP₂-Mo₄P₃/NF||CoP₂-Mo₄P₃/NF electrolyzer delivers a current density of 100 mA cm⁻² at a cell voltage of 1.59 V and remains stable for at least 370 h at 110 mA cm⁻², indicating the potential application prospective in water splitting.

Keywords: heterogeneous interface; transition metal phosphide; bifunctional electrocatalyst; overall water splitting

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MDPI and ACS Style

Chen, Y.; Meng, G.; Chang, Z.; Dai, N.; Chen, C.; Hou, X.; Cui, X. Construction of CoP₂-Mo₄P₃/NF Heterogeneous Interfacial Electrocatalyst for Boosting Water Splitting. Nanomaterials 2023, 13, 74. https://doi.org/10.3390/nano13010074

AMA Style

Chen Y, Meng G, Chang Z, Dai N, Chen C, Hou X, Cui X. Construction of CoP₂-Mo₄P₃/NF Heterogeneous Interfacial Electrocatalyst for Boosting Water Splitting. Nanomaterials. 2023; 13(1):74. https://doi.org/10.3390/nano13010074

Chicago/Turabian Style

Chen, Yafeng, Ge Meng, Ziwei Chang, Ningning Dai, Chang Chen, Xinmei Hou, and Xiangzhi Cui. 2023. "Construction of CoP₂-Mo₄P₃/NF Heterogeneous Interfacial Electrocatalyst for Boosting Water Splitting" Nanomaterials 13, no. 1: 74. https://doi.org/10.3390/nano13010074

APA Style

Chen, Y., Meng, G., Chang, Z., Dai, N., Chen, C., Hou, X., & Cui, X. (2023). Construction of CoP₂-Mo₄P₃/NF Heterogeneous Interfacial Electrocatalyst for Boosting Water Splitting. Nanomaterials, 13(1), 74. https://doi.org/10.3390/nano13010074

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Construction of CoP₂-Mo₄P₃/NF Heterogeneous Interfacial Electrocatalyst for Boosting Water Splitting

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