Pd-M (M = Ni, Co) Bimetallic Catalysts with Tunable Composition for Highly Efficient Electrochemical Formic Acid Oxidation

Ding, Qingwei; Luo, Qing; Lin, Liang; Yang, Tianlun; Fu, Xingping; Wang, Laisen; Lei, Caixia

doi:10.3390/pr11061789

Open AccessArticle

Pd-M (M = Ni, Co) Bimetallic Catalysts with Tunable Composition for Highly Efficient Electrochemical Formic Acid Oxidation

by

Qingwei Ding

¹,

Qing Luo

^1,*

,

Liang Lin

¹,

Tianlun Yang

¹,

Xingping Fu

²,

Laisen Wang

¹ and

Caixia Lei

^3,*

¹

College of Materials, Xiamen University, Xiamen 361005, China

²

Fujian Provincial Key Laboratory of Eco-Inductrial Green Technology, Wuyi University, Wuyishan 354300, China

³

Xiamen Key Laboratory of Power Metallurgy Technology and Advanced Materials, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, China

^*

Authors to whom correspondence should be addressed.

Processes 2023, 11(6), 1789; https://doi.org/10.3390/pr11061789

Submission received: 22 May 2023 / Revised: 6 June 2023 / Accepted: 9 June 2023 / Published: 12 June 2023

(This article belongs to the Special Issue Design and Synthesis of Metal-Organic Framework Materials)

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Abstract

Bimetallic Pd-based catalysts for formic acid oxidation (FAO) are one of the most promising anode materials for the next generation of direct formic acid fuel cells (DFAFC). It is imperative to develop a simple strategy for preparing efficient, stable, and clean nanoparticle catalysts. Herein, we prepared a series of Pd, PdNi, and PdCo nanoparticle catalysts using the nanoparticle beam composite deposition system, which revealed good catalytic activity and stability in the process of FAO. The incorporation of Ni or Co prevents the adsorption of active intermediates and the accumulation of toxic intermediates in the process of FAO. Therefore, more Pd active centers can be used to decompose formic acid directly by dehydrogenation. The results indicate that PdNi-2 (Pd_0.9Ni_0.1) and PdCo-3 (Pd_0.89Co_0.11) catalysts exhibit the optimal catalytic performance, with the mass activity of 1491.5 A g⁻¹_Pd and 1401.7 A g⁻¹_Pd, respectively, which is 2.1 and 2 times that of the pure Pd sample. By optimizing the rate of Pd to transition metal M (Ni, Co), a high-performance Pd-based catalyst was obtained through their synergistic effect, which provides a new approach for designing efficient anode catalysts for DFAFCs.

Keywords: bimetallic alloy; formic acid oxidation; fuel cell; electrocatalysts

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MDPI and ACS Style

Ding, Q.; Luo, Q.; Lin, L.; Yang, T.; Fu, X.; Wang, L.; Lei, C. Pd-M (M = Ni, Co) Bimetallic Catalysts with Tunable Composition for Highly Efficient Electrochemical Formic Acid Oxidation. Processes 2023, 11, 1789. https://doi.org/10.3390/pr11061789

AMA Style

Ding Q, Luo Q, Lin L, Yang T, Fu X, Wang L, Lei C. Pd-M (M = Ni, Co) Bimetallic Catalysts with Tunable Composition for Highly Efficient Electrochemical Formic Acid Oxidation. Processes. 2023; 11(6):1789. https://doi.org/10.3390/pr11061789

Chicago/Turabian Style

Ding, Qingwei, Qing Luo, Liang Lin, Tianlun Yang, Xingping Fu, Laisen Wang, and Caixia Lei. 2023. "Pd-M (M = Ni, Co) Bimetallic Catalysts with Tunable Composition for Highly Efficient Electrochemical Formic Acid Oxidation" Processes 11, no. 6: 1789. https://doi.org/10.3390/pr11061789

APA Style

Ding, Q., Luo, Q., Lin, L., Yang, T., Fu, X., Wang, L., & Lei, C. (2023). Pd-M (M = Ni, Co) Bimetallic Catalysts with Tunable Composition for Highly Efficient Electrochemical Formic Acid Oxidation. Processes, 11(6), 1789. https://doi.org/10.3390/pr11061789

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Pd-M (M = Ni, Co) Bimetallic Catalysts with Tunable Composition for Highly Efficient Electrochemical Formic Acid Oxidation

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