Evolution of Small Molecules as Photocatalyst Towards Production of Green Hydrogen

IF 12.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

ACS Central Science Pub Date : 2024-11-06 DOI:10.1039/d4ta05353b

Tumpa Gorai, Surya Prakash Singh

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Abstract

With the increased demand for green and sustainable sources of fuels, photocatalytic hydrogen gas production using semiconductor catalysts is attracting tremendous attention. In this perspective article, we will discuss the state-of-the-art development of small molecule-based semiconductors for photocatalytic green hydrogen production. Organic small molecules have the benefits of easy structural engineering allowing fine modulation of optical and electronic properties for the development of efficient photocatalysts. Small molecule-based photocatalyst development is advantageous over polymer counterparts due to various reasons of less tedious synthesis, easily tunable optical and electronic properties, improved water dispersibility etc. Conjugated donor-acceptor, porphyrin, perylene, and organic heterojunction nanoparticles are discussed in this article for their photocatalytic activity in hydrogen evolution reactions. We have highlighted literature reports emphasizing the impact of heteroatom substitution, conjugation, band gap, exciton diffusion length, planarity, crystallinity, molecular packing, water solubility etc on photocatalytic performance.

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作为光催化剂的小分子在生产绿色氢气过程中的演变

随着人们对绿色和可持续燃料需求的增加，利用半导体催化剂进行光催化制氢正引起人们的极大关注。在本视角文章中，我们将讨论用于光催化绿色制氢的小分子半导体的最新发展。有机小分子具有结构工程简便的优点，可对光学和电子特性进行微调，从而开发出高效的光催化剂。与聚合物催化剂相比，小分子光催化剂的开发具有各种优势，如合成过程不繁琐、光学和电子特性易于调节、水分散性更好等。本文讨论了共轭供体-受体、卟啉、苝和有机异质结纳米粒子在氢进化反应中的光催化活性。我们突出强调了杂原子取代、共轭、带隙、激子扩散长度、平面度、结晶度、分子堆积、水溶性等对光催化性能影响的文献报道。

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来源期刊

ACS Central Science Chemical Engineering-General Chemical Engineering

CiteScore

25.50

自引率

0.50%

发文量

194

审稿时长

10 weeks

期刊介绍： ACS Central Science publishes significant primary reports on research in chemistry and allied fields where chemical approaches are pivotal. As the first fully open-access journal by the American Chemical Society, it covers compelling and important contributions to the broad chemistry and scientific community. "Central science," a term popularized nearly 40 years ago, emphasizes chemistry's central role in connecting physical and life sciences, and fundamental sciences with applied disciplines like medicine and engineering. The journal focuses on exceptional quality articles, addressing advances in fundamental chemistry and interdisciplinary research.