Tuning the electronic environment of trace Pt through Quasi-solid microwave for boosted hydrogen evolution

IF 16.8 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy Pub Date : 2025-04-20 DOI:10.1016/j.nanoen.2025.111050

Chengfeng Wang , Xiangrui Zhuge , Yusen Chen , Yingxia Zong , Weiping Xiao , Dehong Chen , Jinsong Wang , Tianyi Ma , Lei Wang , Zexing Wu

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Abstract

The modulation of metal-support interactions (MSI) has emerged as promising strategy for tailoring the electronic structure and catalytic efficiency of supported catalysts. In this study, we employ an innovative ultrafast microwave synthesis technique to load platinum (Pt) and nickel (Ni) onto molybdenum boride (MoB) substrate (Pt-Ni/MoB). The introduced Ni facilitates rapid water dissociation, thereby optimizing the kinetics of the Volmer step and contributing to significantly improved hydrogen evolution reaction (HER) performance. The achieved Pt-Ni/MoB demonstrates exceptional electrocatalytic hydrogen evolution performance across wide pH electrolytes, including alkaline, acidic, and alkaline seawater media, with overpotentials of 37 mV, 13 mV, and 51 mV for 10 mA cm⁻², respectively. Correspondingly, the Tafel slopes are determined to be 43 mV dec⁻¹, 25 mV dec⁻¹, and 57 mV dec⁻¹. Specially, in alkaline environment, the mass activity (MA) of the Pt-Ni/MoB surpasses that of Pt/MoB by a factor exceeding five. Moreover, the synthesized Pt-Ni/MoB exhibits substantial promise for practical applications in electrocatalytic water-splitting processes, underscoring its potential significance in the realm of sustainable energy technologies. This work offers a strategic route for the precise design of non-carbon electrocatalysts with exceptional HER activity and long-term durability.

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准固体微波调控痕量铂的电子环境促进析氢

金属-载体相互作用（MSI）的调制已成为调整负载催化剂的电子结构和催化效率的有前途的策略。在这项研究中，我们采用一种创新的超快微波合成技术将铂（Pt）和镍（Ni）加载到钼硼化（MoB）衬底（Pt-Ni/MoB）上。引入的Ni促进了水的快速解离，从而优化了Volmer步骤的动力学，并显著提高了析氢反应（HER）的性能。所获得的Pt-Ni/MoB在宽pH电解质（包括碱性、酸性和碱性海水介质）中表现出优异的电催化析氢性能，10 mA cm-2的过电位分别为37 mV、13 mV和51 mV。相应地，Tafel斜率确定为43 mV dec-1, 25 mV dec-1和57 mV dec-1。特别是在碱性环境下，Pt- ni /MoB的质量活性（MA）比Pt/MoB高出5倍以上。此外，合成的Pt-Ni/MoB在电催化水分解过程中显示出巨大的实际应用前景，强调了其在可持续能源技术领域的潜在意义。这项工作为精确设计具有优异HER活性和长期耐用性的非碳电催化剂提供了一条战略路线。

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来源期刊

Nano Energy CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

30.30

自引率

7.40%

发文量

1207

审稿时长

23 days

期刊介绍： Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem. Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.