Zhou Yin, Wang Wenjun, Zhang Chen, Huang Danlian, Lai Cui, Cheng Min, Qin Lei, Yang Yang, Zhou Chengyun, Li Bisheng, Luo Hanzhuo, He Donghui
College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
Adv Colloid Interface Sci. 2020 May;279:102144. doi: 10.1016/j.cis.2020.102144. Epub 2020 Mar 19.
Hydrogen is considered to be a promising energy carrier to solve the issue of energy crisis. Molybdenum carbide (MoC) is the typical material, which has similar properties of Pt and thought to be an attractive alternative to noble metals for H evolution. The study of MoC as alternative catalyst for H production is almost focused on electrocatalytic field, while the application of MoC as a co-catalyst in photocatalytic H evolution has received in-depth research in recent years. Particularly, MoC exhibits significant enhancement in the H production performance of semiconductors under visible light irradiation. However, a review discussing MoC serving as a co-catalysts in the photocatalytic H evolution is still absent. Herein, the recent progress of MoC on photocatalytic H evolution 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 MoC are illustrated to illuminate the advantages of MoC as a co-catalyst for H evolution. Furthermore, the different heterojunctions formed between MoC 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 MoC-based photocatalysts are also presented.
氢气被认为是解决能源危机问题的一种很有前景的能量载体。碳化钼（MoC）是典型材料，它具有与铂相似的性质，并且被认为是用于析氢的贵金属的一种有吸引力的替代物。将MoC作为析氢替代催化剂的研究几乎都集中在电催化领域，而近年来MoC作为助催化剂在光催化析氢中的应用受到了深入研究。特别是，在可见光照射下，MoC在半导体的析氢性能方面表现出显著增强。然而，关于MoC作为光催化析氢中的助催化剂的综述仍然缺乏。在此，对MoC在光催化析氢方面的最新进展进行综述。首先，详细总结了包括化学气相沉积、程序升温以及有机-无机杂化等制备方法。然后，阐述了MoC的基本结构、电子性质和电导率，以说明MoC作为析氢助催化剂的优势。此外，强调了MoC与其他半导体形成的不同异质结以提高光催化性能。最后，还提出了关于当前挑战以及未来提高基于MoC的光催化剂催化性能的研究方向的观点。
