Chemical modification of graphene for atomic-scale catalyst supports
Chemical modification of graphene for atomic-scale catalyst supports
复制标题
DOI：
10.1088/2632-959x/aca41f
复制
发表时间：
2022-11
期刊：
影响因子：
3
通讯作者：
Y. Kunisada;N. Sakaguchi
中科院分区：
文献类型：
--
作者：
Y. Kunisada;N. Sakaguchi
减少贵金属催化剂使用的一种有希望的方法是使用极细的颗粒催化剂，例如亚纳米团簇和单原子催化剂。为了实际应用，需要抑制催化剂的扩散和附聚。杂原子掺杂石墨烯具有高比表面积、高化学和机械稳定性、高电导率和热导率，并含有催化剂的锚定位点，是一种很有前途的催化剂载体。杂原子掺杂石墨烯可以广泛地控制支撑效应。这篇综述总结了最近的掺杂剂结构表征光谱和密度泛函理论计算。讨论了高分散金属催化剂的分布及其扩散性能。此外，还介绍了环境条件对催化剂动力学行为的影响。最后，对杂原子掺杂石墨烯和新型二维材料支撑体的发展前景进行了展望。
One promising way to reduce the use of noble metal catalysts is to use extremely fine particle catalysts, such as subnanoclusters and single-atom catalysts. For practical use, suppression of diffusion and agglomeration of catalysts are needed. Heteroatom-doped graphene, which has high specific surface area, high chemical and mechanical stabilities, high electrical and thermal conductivities, and contains anchoring sites for catalysts, is promising catalyst support. Heteroatom-doped graphene can widely control the support effects. This review summarizes recent dopant structure characterization using spectroscopy and density functional theory calculations. The distribution of highly-dispersed metal catalysts and their diffusion properties are discussed. In addition, The effects of environmental conditions on catalyst dynamic behaviors are introduced. Finally, the outlook of heteroatom-doped graphene and new two-dimensional material supports is discussed.