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Exploitation of the Large‐Area Basal Plane of MoS2 and Preparation of Bifunctional Catalysts through On‐Surface Self‐Assembly
Advanced Science ( IF 14.3 ) Pub Date : 2017-09-23 , DOI: 10.1002/advs.201700356 Yinghe Zhao 1 , Qiang Li 1 , Li Shi 1 , Jinlan Wang 1, 2
Advanced Science ( IF 14.3 ) Pub Date : 2017-09-23 , DOI: 10.1002/advs.201700356 Yinghe Zhao 1 , Qiang Li 1 , Li Shi 1 , Jinlan Wang 1, 2
Affiliation
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The development of nonprecious electrochemical catalysts for water splitting is a key step to achieve a sustainable energy supply for the future. Molybdenum disulfide (MoS2) has been extensively studied as a promising low‐cost catalyst for hydrogen evolution reaction (HER), whereas HER is only catalyzed at the edge for pristine MoS2, leaving a large area of basal plane useless. Herein, on‐surface self‐assembly is demonstrated to be an effective, facile, and damage‐free method to take full advantage of the large ratio surface of MoS2 for HER by using multiscale simulations. It is found that as supplement of edge sites of MoS2, on‐MoS2 M(abt)2 (M = Ni, Co; abt = 2‐aminobenzenethiolate) owns high HER activity, and the self‐assembled M(abt)2 monolayers on MoS2 can be obtained through a simple liquid‐deposition method. More importantly, on‐surface self‐assembly provides potential application for overall water splitting once the self‐assembled systems prove to be of both HER and oxygen evolution reaction activities, for example, on‐MoS2 Co(abt)2. This work opens up a new and promising avenue (on‐surface self‐assembly) toward the full exploitation of the basal plane of MoS2 for HER and the preparation of bifunctional catalysts for overall water splitting.
中文翻译：
MoS2大面积基面的利用及表面自组装制备双功能催化剂
开发用于水分解的非贵金属电化学催化剂是实现未来可持续能源供应的关键一步。二硫化钼（MoS 2 ）作为一种有前景的低成本析氢反应（HER）催化剂已被广泛研究，而析氢反应仅在原始MoS 2的边缘催化，留下大面积的基面无用。在此，通过使用多尺度模拟，表面自组装被证明是一种有效、简便且无损伤的方法，可以充分利用 MoS 2的大比表面进行 HER。结果发现，作为MoS 2边缘位点的补充，on-MoS 2 M(abt) 2 (M = Ni, Co; abt = 2-氨基苯硫醇)具有较高的HER活性，并且自组装的M(abt) 2 MoS 2上的单分子层可以通过简单的液体沉积方法获得。更重要的是，一旦自组装系统被证明具有HER和析氧反应活性，例如on-MoS 2 Co(abt) 2 ，表面自组装为整体水分解提供了潜在的应用。这项工作为充分利用 MoS 2基面用于 HER 和制备用于整体水分解的双功能催化剂开辟了一条新的、有前景的途径（表面自组装）。
更新日期：2017-09-23
中文翻译：
MoS2大面积基面的利用及表面自组装制备双功能催化剂
开发用于水分解的非贵金属电化学催化剂是实现未来可持续能源供应的关键一步。二硫化钼（MoS 2 ）作为一种有前景的低成本析氢反应（HER）催化剂已被广泛研究，而析氢反应仅在原始MoS 2的边缘催化，留下大面积的基面无用。在此，通过使用多尺度模拟，表面自组装被证明是一种有效、简便且无损伤的方法，可以充分利用 MoS 2的大比表面进行 HER。结果发现，作为MoS 2边缘位点的补充，on-MoS 2 M(abt) 2 (M = Ni, Co; abt = 2-氨基苯硫醇)具有较高的HER活性，并且自组装的M(abt) 2 MoS 2上的单分子层可以通过简单的液体沉积方法获得。更重要的是，一旦自组装系统被证明具有HER和析氧反应活性，例如on-MoS 2 Co(abt) 2 ，表面自组装为整体水分解提供了潜在的应用。这项工作为充分利用 MoS 2基面用于 HER 和制备用于整体水分解的双功能催化剂开辟了一条新的、有前景的途径（表面自组装）。
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