Ultrasmall Transition Metal Carbide Nanoparticles Encapsulated in N, S‐Doped Graphene for All‐pH Hydrogen Evolution,Small Methods

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Ultrasmall Transition Metal Carbide Nanoparticles Encapsulated in N, S‐Doped Graphene for All‐pH Hydrogen Evolution
Small Methods ( IF 10.7 ) Pub Date : 2018-01-25 , DOI: 10.1002/smtd.201700353
Liping Zhang _{1,

2} , Hongbin Yang ₁ , Darshika K. J. A. Wanigarathna ₁ , Bin Liu _{1,

2}

Affiliation

Noble metal free catalysts with high catalytic activity and excellent durability have long been pursued as alternatives of noble metal catalysts for renewable energy technologies. Herein, a facile one‐step method is reported to prepare ultrasmall transition metal carbide nanoparticles encapsulated in N, S‐doped graphene as noble‐metal‐free electrocatalysts for all‐pH hydrogen evolution, in which, high‐density MoC_x (≈2.8 nm) or WC_x (≈2.0 nm) nanoparticles are encapsulated in porous N, S‐doped graphene matrix. Both catalysts exhibit excellent hydrogen evolution reaction catalytic activity and durability in a wide range of pH from 0 to 14.

中文翻译：

N，S掺杂石墨烯中包裹的超小型过渡金属碳化物纳米颗粒，可在所有pH值的氢气中析出

长期以来，一直追求具有高催化活性和优异耐久性的无贵金属催化剂作为可再生能源技术的贵金属催化剂的替代品。本文报道了一种简便的一步法制备超小过渡金属碳化物纳米粒子，该粒子封装在N，S掺杂的石墨烯中，作为无贵金属的全pH氢气析出电催化剂，其中，高密度MoC _x（≈2.8纳米或纳米WC _x（≈2.0纳米）封装在多孔的N，S掺杂的石墨烯基体中。两种催化剂在0至14的广泛pH范围内均具有出色的析氢反应催化活性和耐久性。

更新日期：2018-01-25

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