Two-dimensional semiconductor transition metal based chalcogenide based heterostructures for water splitting applications.
Two-dimensional semiconductor transition metal based chalcogenide based heterostructures for water splitting applications.
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DOI：
10.1039/c9dt01581g
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发表时间：
2019-08
影响因子：
4
通讯作者：
C. Sumesh;S. Peter
中科院分区：
文献类型：
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作者：
C. Sumesh;S. Peter
最近的研究和开发集中在密集的方式，以提高太阳能转换成电能的效率，通过光电化学和光电化学反应。电催化和光催化水分解为氢和氧是一种很有前途的新兴技术。基于半导体材料的异质纳米结构在催化剂、助催化剂、光催化剂和光吸收剂等方面的应用引起了人们的广泛关注。具有二维层状结构和特殊物理化学性质的过渡金属二硫属化物（TMDC）半导体材料的发展在多相光催化析氢反应中起着关键作用。随着层的厚度和异质结界面形成的能带隙调谐已经给出了使用半导体TMDC设计和开发光催化剂和助催化剂两者的组合的机会。这篇文章总结了最近的研究二维半导体TMDC（MoS2，WS2，MoSe2和WSe2）为基础的异质纳米结构作为高效的光催化分解水制氢应用程序的材料。文献调查清楚地表明，该领域超过80%的研究人员都在研究基于MoS2的异质纳米复合材料，因为它是仅次于石墨烯的第二大研究材料。同样明显的是，在迄今为止用于PC HER活性的材料中，基于MoS2的异质纳米复合材料具有最高的析氢速率和稳定性。由于成员的物理和化学性质是相同的，未来的研究和开发将集中在TMDC成员的其余部分的操纵，以实现清洁和可持续能源生产的未来需求。
Recent research and development is focused in an intensive manner to increase the efficiency of solar energy conversion into electrical energy via photovoltaics and photo-electrochemical reactions. Electrocatalytic and photocatalytic water splitting into hydrogen and oxygen is a promising and emerging technology. Heterogeneous nanostructures based on semiconductor materials have attracted much attention to be used as catalysts, co-catalysts, photocatalysts and photoabsorbers. Development of transition metal dichalcogenide (TMDC) semiconductors with two dimensional (2D) layered structures and peculiar physical and chemical properties are playing a pivotal role in the heterogeneous photocatalytic hydrogen evolution (PHE) reaction. The energy band gap tuning with the thickness of the layers and heterojunction interface formation have given an opportunity to design and develop combinations of both photocatalysts and co-catalysts using semiconductor TMDCs. This contribution summarizes the recent investigations on the 2D semiconductor TMDC (MoS2, WS2, MoSe2 and WSe2) based heterogeneous nanostructures as efficient materials for photocatalytic water splitting applications to produce hydrogen. The literature survey clearly shows that more than 80% of the researchers in this field have worked on MoS2-based heterogeneous nanocomposites, as it is the 2nd most studied material after graphene. It is also evident that among the materials used so far for the PC HER activity, MoS2-based heterogeneous nanocomposites are on top with the highest hydrogen evolution rate and stability. Since the physical and chemical properties of the members are identical, the future research and development would focus on the manipulation of the rest of the TMDC members to achieve the future needs of clean and sustainable energy production.