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Title: In Situ Growth of Ni 2P–Cu 3P Bimetallic Phosphide with Bicontinuous Structure on Self-Supported NiCuC Substrate as an Efficient Hydrogen Evolution Reaction Electrocatalyst

Abstract

A direct and effective approach is proposed to fabricate bimetallic phosphide Ni 2P–Cu 3P with controllable phase compn. and distribution for catalytic hydrogen evolution reaction (HER). Unlike previously reported precursors, a porous Ni-Cu alloy incorporated with graphitic carbon (NiCuC) prepd. via powder metallurgy is employed herein, and the generated Ni 2P–Cu 3P@NiCuC possesses a hierarchical porous structure and controllable phase compn. due to the high porosity and tunable Ni/Cu ratio of the precursor. With an optimal Cu content of 30.0 wt. %, the catalyst demonstrates the highest catalytic activity due to a synergistic interaction between different metallic phosphide sites and the facilitated mass transport. Meanwhile, d. functional theory (DFT) calcn. reveals that the at. interaction of Ni 2P–Cu 3P substantially lower the activation barrier for enhanced HER catalytic activity. Finally, the powder metallurgy provides an approach for the design of bimetallic phosphide electrocatalysts for HER and other catalytic applications.

Authors:
ORCiD logo [1];  [2];  [3];  [3];  [3];  [3];  [4];  [5];  [5]; ORCiD logo [3]
  1. Changsha Univ. of Science and Technology (China); Univ. of Connecticut, Storrs, CT (United States)
  2. Changsha Univ. of Science and Technology (China)
  3. Univ. of Connecticut, Storrs, CT (United States)
  4. Griffith Univ., Gold Coast (Australia)
  5. Central South Univ., Changsha (China)
Publication Date:
Research Org.:
Univ. of Connecticut, Storrs, CT (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division; National Natural Science Foundation of China (NNSFC); Scientific Research Fund of Hunan Provincial Education Department; Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
OSTI Identifier:
1598236
Grant/Contract Number:  
FG02-86ER13622; 51701023; 51874049; 16C0026; 2016CL04
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
ACS Catalysis
Additional Journal Information:
Journal Volume: 9; Journal Issue: 8; Journal ID: ISSN 2155-5435
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; bimetallic phosphide; bicontinuous structure; Ni2P−Cu3P; hydrogen evolution; reaction catalyst

Citation Formats

Yu, Linping, Zhang, Jian, Dang, Yanliu, He, Junkai, Tobin, Zachary, Kerns, Peter, Dou, Yuhai, Jiang, Yao, He, Yuehui, and Suib, Steven L. In Situ Growth of Ni2P–Cu3P Bimetallic Phosphide with Bicontinuous Structure on Self-Supported NiCuC Substrate as an Efficient Hydrogen Evolution Reaction Electrocatalyst. United States: N. p., 2019. Web. doi:10.1021/acscatal.9b00494.
Yu, Linping, Zhang, Jian, Dang, Yanliu, He, Junkai, Tobin, Zachary, Kerns, Peter, Dou, Yuhai, Jiang, Yao, He, Yuehui, & Suib, Steven L. In Situ Growth of Ni2P–Cu3P Bimetallic Phosphide with Bicontinuous Structure on Self-Supported NiCuC Substrate as an Efficient Hydrogen Evolution Reaction Electrocatalyst. United States. https://doi.org/10.1021/acscatal.9b00494
Yu, Linping, Zhang, Jian, Dang, Yanliu, He, Junkai, Tobin, Zachary, Kerns, Peter, Dou, Yuhai, Jiang, Yao, He, Yuehui, and Suib, Steven L. Tue . "In Situ Growth of Ni2P–Cu3P Bimetallic Phosphide with Bicontinuous Structure on Self-Supported NiCuC Substrate as an Efficient Hydrogen Evolution Reaction Electrocatalyst". United States. https://doi.org/10.1021/acscatal.9b00494. https://www.osti.gov/servlets/purl/1598236.
@article{osti_1598236,
title = {In Situ Growth of Ni2P–Cu3P Bimetallic Phosphide with Bicontinuous Structure on Self-Supported NiCuC Substrate as an Efficient Hydrogen Evolution Reaction Electrocatalyst},
author = {Yu, Linping and Zhang, Jian and Dang, Yanliu and He, Junkai and Tobin, Zachary and Kerns, Peter and Dou, Yuhai and Jiang, Yao and He, Yuehui and Suib, Steven L.},
abstractNote = {A direct and effective approach is proposed to fabricate bimetallic phosphide Ni2P–Cu3P with controllable phase compn. and distribution for catalytic hydrogen evolution reaction (HER). Unlike previously reported precursors, a porous Ni-Cu alloy incorporated with graphitic carbon (NiCuC) prepd. via powder metallurgy is employed herein, and the generated Ni2P–Cu3P@NiCuC possesses a hierarchical porous structure and controllable phase compn. due to the high porosity and tunable Ni/Cu ratio of the precursor. With an optimal Cu content of 30.0 wt. %, the catalyst demonstrates the highest catalytic activity due to a synergistic interaction between different metallic phosphide sites and the facilitated mass transport. Meanwhile, d. functional theory (DFT) calcn. reveals that the at. interaction of Ni2P–Cu3P substantially lower the activation barrier for enhanced HER catalytic activity. Finally, the powder metallurgy provides an approach for the design of bimetallic phosphide electrocatalysts for HER and other catalytic applications.},
doi = {10.1021/acscatal.9b00494},
url = {https://www.osti.gov/biblio/1598236}, journal = {ACS Catalysis},
issn = {2155-5435},
number = 8,
volume = 9,
place = {United States},
year = {2019},
month = {6}
}

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