Low-Cost Pt–Cu<sub>3</sub>P/Cu<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> with Outstanding Water Splitting Activity in both Basic Solutions and Seawater

Developing an outperformed bifunctional water splitting catalyst serving in both basic solutions and seawater is of great significance. Herein, we synthesized the binder-free copper mesh (CM)-based Pt-Cu<sub>3</sub>P/Cu<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> through two-step reaction courses. The achieved Pt-Cu<sub>3</sub>P/Cu<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>/CM (abbreviated as Pt-Cu<sub>3</sub>P/CPO/CM) has the appearance of nanosheets decorated with uniformly distributed nanoclusters. Electrochemical testing results confirm its Pt/C/CM-like hydrogen evolution reaction (HER) behavior and superior to RuO<sub>2</sub>/CM oxygen evolution reaction (OER) activity. In addition, to deliver a 10 mA cm<sup>-2</sup> current density, the acquired voltage of Pt-Cu<sub>3</sub>P/CPO/CM is only 1.653 V in basic solutions and 1.676 V in seawater, even lower than the Pt/C/CM-RuO<sub>2</sub>/CM electrode pair (1.668 V) in the basic solutions. Further insight analysis certifies that the in situ-formed Pt-Cu<sub>3</sub>P/CPO heterojunction, together with the enlarged electrochemical surface-active area and the shortened charge transfer resistance, hugely improved the electrocatalytic property of Pt-Cu<sub>3</sub>P/CPO/CM. This work not only obtains an excellent self-supported bifunctional catalyst but also provides a material design idea to other Cu<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>-based catalysts.

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Publication Details

Journal
ACS Applied Materials & Interfaces
Published
2025-08-25
DOI
https://doi.org/10.1021/acsami.5c11379
Citations
1
Primary Topic
Electrocatalysts for Energy Conversion
Type
article
Field-Weighted Citation Impact
0.36

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article

Low-Cost Pt–Cu3P/Cu3(PO4)2 with Outstanding Water Splitting Activity in both Basic Solutions and Seawater

Juan Jian, Limin Chang, Zihan Li, Meiting Wang et al.
1 citations
ACS Applied Materials & Interfaces
Electrocatalysts for Energy Conversion
0.36
article

Low-Cost Pt–Cu3P/Cu3(PO4)2 with Outstanding Water Splitting Activity in both Basic Solutions and Seawater

Juan Jian, Limin Chang, Zihan Li, Meiting Wang, Qi Han, Zhuo Wang
article en
1 citations

Abstract

Developing an outperformed bifunctional water splitting catalyst serving in both basic solutions and seawater is of great significance. Herein, we synthesized the binder-free copper mesh (CM)-based Pt-Cu<sub>3</sub>P/Cu<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> through two-step reaction courses. The achieved Pt-Cu<sub>3</sub>P/Cu<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>/CM (abbreviated as Pt-Cu<sub>3</sub>P/CPO/CM) has the appearance of nanosheets decorated with uniformly distributed nanoclusters. Electrochemical testing results confirm its Pt/C/CM-like hydrogen evolution reaction (HER) behavior and superior to RuO<sub>2</sub>/CM oxygen evolution reaction (OER) activity. In addition, to deliver a 10 mA cm<sup>-2</sup> current density, the acquired voltage of Pt-Cu<sub>3</sub>P/CPO/CM is only 1.653 V in basic solutions and 1.676 V in seawater, even lower than the Pt/C/CM-RuO<sub>2</sub>/CM electrode pair (1.668 V) in the basic solutions. Further insight analysis certifies that the in situ-formed Pt-Cu<sub>3</sub>P/CPO heterojunction, together with the enlarged electrochemical surface-active area and the shortened charge transfer resistance, hugely improved the electrocatalytic property of Pt-Cu<sub>3</sub>P/CPO/CM. This work not only obtains an excellent self-supported bifunctional catalyst but also provides a material design idea to other Cu<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>-based catalysts.

ACS Applied Materials & InterfacesVol. 17(35)
Ministry of Education (NZ), Jilin Normal University (CN)
Department of Science and Technology of Jilin Province
Openalex Percentile: Top 40%
Electrocatalysts for Energy Conversion
0.36
DOISourceOpenAlex
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