Cohesive energy discrepancy drives the fabrication of multimetallic atomically dispersed materials for hydrogen evolution reaction

Xinyi Yang, Wanqing Song, Kang Liao, Xiaoyang Wang, Xin Wang, Jinfeng Zhang, Haozhi Wang, Yanan Chen, Ning Yan, Xiaopeng Han (), Jia Ding () and Wenbin Hu
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Xinyi Yang: Tianjin University
Wanqing Song: Tianjin University
Kang Liao: Tianjin University
Xiaoyang Wang: Tianjin University
Xin Wang: Tianjin University
Jinfeng Zhang: Tianjin University
Haozhi Wang: Tianjin University
Yanan Chen: Tianjin University
Ning Yan: Wuhan University
Xiaopeng Han: Tianjin University
Jia Ding: Tianjin University
Wenbin Hu: Tianjin University

Nature Communications, 2024, vol. 15, issue 1, 1-14

Abstract: Abstract Atomically dispersed single atom (SA) and atomic cluster (AC) metallic materials attract tremendous attentions in various fields. Expanding monometallic SA and AC to multimetallic SA/AC composites opens vast scientific and technological potentials yet exponentially increasing the synthesis difficulty. Here, we present a general energy-selective-clustering methodology to build the largest reported library of carbon supported bi-/multi-metallic SA/AC materials. The discrepancy in cohesive energy results into selective metal clustering thereby driving the symbiosis of multimetallic SA or/and AC. The library includes 23 bimetallic SA/AC composites, and expanded compositional space of 17 trimetallic, quinary-metallic, septenary-metallic SA/AC composites. We chose bimetallic M1SAM2AC to demonstrate the electrocatalysis utility. Unique decoupled active sites and inter-site synergy lead to 8/47 mV overpotential at 10 mA cm−2 for alkaline/acidic hydrogen evolution and over 1000 h durability in water electrolyzer. Moreover, delicate modulations towards composition and configuration yield high-performance catalysts for multiple electrocatalysis systems. Our work broadens the family of atomically dispersed materials from monometallic to multimetallic and provides a platform to explore the complex composition induced unconventional effects.

Date: 2024
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DOI: 10.1038/s41467-024-52520-1

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