Amorphous phosphorus-doped MoS2 catalyst for efficient hydrogen evolution reaction

Amorphous phosphorus-doped MoS2 catalyst for efficient hydrogen evolution reaction
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用于高效析氢反应的非晶态磷掺杂MoS2催化剂

DOI:
10.1088/1361-6528/aafff2
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发表时间:
2019-03
期刊:
影响因子:
3.5
通讯作者:
Zhuangzhi Wu
Zhuangzhi Wu
中科院分区:
材料科学3区
文献类型:
--
作者:
Dezhi Wang;Yingying Xie;Zhuangzhi Wu

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在未来的能源系统中,分解水是生产清洁和可持续的氢以取代有限的化石燃料的重要方法。二硫化钼是一种很有前途的不含贵金属元素的催化剂,可以加快电催化析氢反应的速度。然而,对基于二硫化钼的催化剂的进一步改进存在着现实的需求和强烈的需求。本文采用水热法制备了一种新型的非晶态磷掺杂MoS2纳米复合材料(P-MoS2)。与结晶型二硫化钼相比,非晶型掺磷MoS2催化剂表现出更好的活性,Tafel斜率较小,为39 mV dec−1。此外,P-MoS2催化剂在酸性电解质中也表现出良好的稳定性。这种高活性的非晶掺磷二硫化钼催化剂是促进经济制氢系统发展的一个有希望的候选人。
Splitting water is an important method for producing clean and sustainable hydrogen to replace finite fossil fuels in future energy systems. MoS2 is reported as a promising catalyst without noble metallic elements to accelerate the rate of the electrocatalytic hydrogen evolution reaction. However, there is a real need and strong demand for further improvement of the MoS2-based catalyst. In the present study, a novel amorphous phosphorus-doped MoS2 nanocomposite (P-MoS2) is prepared by a facile hydrothermal method. Compared with crystalline molybdenum disulfide, the amorphous P-doped MoS2 catalyst exhibits much better activity with a smaller Tafel slope of 39 mV dec−1. Moreover, good stability is also demonstrated over the P-MoS2 catalyst in acidic electrolyte. This highly active amorphous P-doped MoS2 catalyst is a promising candidate to facilitate the development of economical hydrogen production systems.
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