Sustainable hydrogen production by molybdenum carbide-based efficient photocatalysts: From properties to mechanism.
Sustainable hydrogen production by molybdenum carbide-based efficient photocatalysts: From properties to mechanism.
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DOI：
10.1016/j.cis.2020.102144
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发表时间：
2020-03
影响因子：
15.6
通讯作者：
Yin Zhou;Wenjun Wang;Chen Zhang;Danlian Huang;Cui Lai;Min Cheng;L. Qin;Yang Yang-Yang;Chengyun Zhou-C
中科院分区：
文献类型：
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作者：
Yin Zhou;Wenjun Wang;Chen Zhang;Danlian Huang;Cui Lai;Min Cheng;L. Qin;Yang Yang-Yang;Chengyun Zhou-C
氢气被认为是解决能源危机的一种很有前途的能源载体。碳化钼(MoxC)是一种典型的析氢材料，它具有与铂相似的性质，被认为是一种有吸引力的贵金属析氢替代品。MoxC作为制氢替代催化剂的研究大多集中在电催化领域，而MoxC作为助催化剂在光催化制氢中的应用近年来得到了深入的研究。特别是，在可见光照射下，MoxC对半导体的产氢性能有显著的提高。然而，目前还没有关于MoxC在光催化析氢中作为助催化剂的综述。本文综述了MoxC在光催化析氢方面的研究进展。首先，对化学气相沉积、程序升温、有机-无机杂化等制备方法进行了详细的综述。然后介绍了MoxC的基本结构、电子性质和比电导，说明了MoxC作为析氢助催化剂的优势。此外，还强调了MoxC与其他半导体之间形成的不同异质结对提高光催化性能的作用。最后，展望了MoxC基光催化剂目前面临的挑战和未来的研究方向。
Hydrogen is considered to be a promising energy carrier to solve the issue of energy crisis. Molybdenum carbide (MoxC) is the typical material, which has similar properties of Pt and thought to be an attractive alternative to noble metals for H2evolution. The study of MoxC as alternative catalyst for H2production is almost focused on electrocatalytic field, while the application of MoxC as a co-catalyst in photocatalytic H2evolution has received in-depth research in recent years. Particularly, MoxC exhibits significant enhancement in the H2production performance of semiconductors under visible light irradiation. However, a review discussing MoxC serving as a co-catalysts in the photocatalytic H2evolution is still absent. Herein, the recent progress of MoxC on photocatalytic H2evolution is reviewed. Firstly, the preparation methods including chemical vapor deposition, temperature programming, and organic-inorganic hybridization are detailly summarized. Then, the fundamental structure, electronic properties, and specific conductance of MoxC are illustrated to illuminate the advantages of MoxC as a co-catalyst for H2evolution. Furthermore, the different heterojunctions formed between MoxC and other semiconductors for enhancing the photocatalytic performance are emphasized. Finally, perspectives regarding the current challenges and the future research directions on the improvement of catalytic performance of MoxC-based photocatalysts are also presented.