Hrubý Vítězslav, Zaoralová Dagmar, Medveď Miroslav, Bakandritsos Aristeidis, Zbořil Radek, Otyepka Michal
Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic.
Department of Physical Chemistry, Palacký University Olomouc, 17. listopadu 12, 771 46 Olomouc, Czech Republic.
Nanoscale. 2022 Sep 29;14(37):13490-13499. doi: 10.1039/d2nr03453k.
Single-atom catalysts (SACs) based on graphene derivatives are an emerging and growing class of materials functioning as two-dimensional (2D) metal-coordination scaffolds with intriguing properties. Recently, owing to the rich chemistry of fluorographene, new avenues have opened toward graphene derivatives with selective, spacer-free, and dense functionalization, acting as in-plane or out-of-plane metal coordination ligands. The particular structural features give rise to intriguing phenomena occurring between the coordinated metals and the graphene backbone. These include redox processes, charge transfer, emergence, and stabilization of rare or otherwise unstable metal valence states, as well as metal-support and metal-metal synergism. The vast potential of such systems has been demonstrated as enzyme mimics for cooperative mixed-valence SACs, ethanol fuel cells, and CO fixation; however, it is anticipated that their impact will further expand toward diverse fields, , advanced organic transformations, electrochemical energy storage, and energy harvesting.
基于石墨烯衍生物的单原子催化剂（SACs）是一类新兴且不断发展的材料，作为具有有趣特性的二维（2D）金属配位支架发挥作用。最近，由于氟石墨烯丰富的化学性质，通往具有选择性、无间隔和密集功能化的石墨烯衍生物的新途径已经开启，这些衍生物可作为面内或面外金属配位配体。这些特殊的结构特征导致了在配位金属和石墨烯主链之间出现有趣的现象。这些现象包括氧化还原过程、电荷转移、稀有或其他不稳定金属价态的出现和稳定，以及金属-载体和金属-金属协同作用。这类体系作为用于协同混合价单原子催化剂、乙醇燃料电池和CO固定的酶模拟物，其巨大潜力已得到证明；然而，可以预期，它们的影响将进一步扩展到不同领域，如先进的有机转化、电化学能量存储和能量收集。
