Cobalt Nanoclusters-Modulated Platinum–Tin Intermetallic for pH-Universal Hydrogen Evolution Electrocatalysis

IF 9.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2025-04-07 DOI:10.1021/acsmaterialslett.5c0036310.1021/acsmaterialslett.5c00363

Chuhan Dai, Ruirui Wang*, Shouyu Yao, Qianqian Liu, Hongyuan Yang, Wanfei Li, Miao Cheng, Ziliang Chen, Jing Hu, Tao Wei, Yun Ling, Prashanth W. Menezes* and Bo Liu*,

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引用次数: 0

Abstract

Achieving satisfactory electrocatalytic activity and stability of platinum (Pt)-based catalysts for hydrogen evolution reaction (HER) in wide-pH media remains a formidable challenge. In this context, a heterostructure composed of platinum–tin intermetallic nanoparticles and cobalt nanoclusters, evenly confined in a nitrogen-doped carbon mesh (Pt₃Sn/Co@N-CM), is designed that acts as an efficient HER catalyst. Alloying Sn effectively reduces Pt usage and ensures high electrical conductivity during catalysis. Notably, the Co clusters not only accelerate water dissociation in the HER process but also form strong coupling with ordered Pt₃Sn particles, thus optimizing the Gibbs free energy for pH-universal HER intermediates. Consequently, Pt₃Sn/Co@N-CM attains 10 mA cm^–2 current densities at low overpotentials of ∼8, ∼20, and ∼41 mV in acidic, alkaline, and neutral solutions, respectively, outperforming most reported Pt-based counterparts. Additionally, excellent structural and operational stability is achieved, displaying its promising prospects. This study paves a simple avenue for developing high-performance, pH-universal HER electrocatalysts.

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钴纳米团簇-调制铂锡金属间化合物用于ph -通用析氢电催化

在宽ph介质中，铂基催化剂对析氢反应（HER）的电催化活性和稳定性仍是一个艰巨的挑战。在这种情况下，设计了一种由铂锡金属间纳米颗粒和钴纳米团簇组成的异质结构，均匀地限制在氮掺杂碳网（Pt3Sn/Co@N-CM）中，作为高效的HER催化剂。合金化锡有效地减少了铂的使用，并确保了催化过程中的高导电性。值得注意的是，Co簇不仅在HER过程中加速了水的解离，而且与有序的Pt3Sn粒子形成了强耦合，从而优化了pH-universal HER中间体的吉布斯自由能。因此，Pt3Sn/Co@N-CM在酸性、碱性和中性溶液中分别在~ 8、~ 20和~ 41 mV的低过电位下达到10 mA cm-2电流密度，优于大多数报道的基于pt的对应物。具有良好的结构稳定性和运行稳定性，具有广阔的应用前景。本研究为开发高性能、ph通用的HER电催化剂开辟了一条简单的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.