Adams Pardis, Bühler Jan, Walz Iva, Moehl Thomas, Roithmeyer Helena, Blacque Olivier, Comini Nicolò, Diulus J Trey, Alberto Roger, Siol Sebastian, Dimitrievska Mirjana, Novotny Zbynek, Tilley S David
Department of Chemistry, University of Zurich, Zurich, 8057, Switzerland.
Department of Physics, University of Zurich, Zurich, 8057, Switzerland.
ACS Energy Lett. 2024 Jul 12;9(8):3828-3834. doi: 10.1021/acsenergylett.4c01570. eCollection 2024 Aug 9.
Molybdenum sulfide serves as an effective nonprecious metal catalyst for hydrogen evolution, primarily active at edge sites with unsaturated molybdenum sites or terminal disulfides. To improve the activity at a low loading density, two molybdenum sulfide clusters, [MoS] and [MoS], were investigated. The MoS molecular catalysts were heterogenized on SbSe with a simple soaking treatment, resulting in a thin catalyst layer of only a few nanometers that gave up to 20 mA cm under one sun illumination. Both [MoS] and [MoS] exhibit catalytic activities on SbSe, with [MoS] emerging as the superior catalyst, demonstrating enhanced photovoltage and an average faradaic efficiency of 100% for hydrogen evolution. This superiority is attributed to the effective loading and higher catalytic activity of [MoS] on the SbSe surface, validated by X-ray photoelectron and Raman spectroscopy.
硫化钼作为一种有效的析氢非贵金属催化剂，主要在具有不饱和钼位点或末端二硫化物的边缘位点具有活性。为了在低负载密度下提高活性，研究了两种硫化钼簇，即[MoS]和[MoS]。通过简单的浸泡处理将MoS分子催化剂负载于SbSe上，形成仅几纳米厚的催化剂层，在一个太阳光照下可产生高达20 mA cm的电流。[MoS]和[MoS]在SbSe上均表现出催化活性，其中[MoS]是更优异的催化剂，具有增强的光电压，析氢平均法拉第效率达100%。这种优越性归因于[MoS]在SbSe表面的有效负载和更高的催化活性，这通过X射线光电子能谱和拉曼光谱得到了验证。
