Hui Lan, Xue Yurui, Yu Huidi, Zhang Chao, Huang Bolong, Li Yuliang
Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
Science Center for Material Creation and Energy Conversion School of Chemistry and Chemical Engineering Institute of Frontier and Interdisciplinary Science, Shandong University, Jinan, 250100, P.R. China.
Chemphyschem. 2020 Oct 2;21(19):2145-2149. doi: 10.1002/cphc.202000579. Epub 2020 Aug 26.
Graphdiyne, as a magical support, can anchor zero valence metal atoms, providing us with an opportunity to develop emerging catalysts with the maximized active sites and selectivity. Herein we report high-performance atom catalysts (ACs), Cu /GDY, by anchoring Cu atoms on graphdiyne (GDY) for hydrogen evolution reaction (HER). The activity and selectivity of this catalyst are obviously superior to that of commercial 20 wt.% Pt/C, and the turnover frequency of 30.52 s is 18 times larger than 20 wt.% Pt/C. Density functional theory (DFT) calculations demonstrate that the strong p-d coupling induced charge compensation leads to the zero valence state of the atomic-scaled transition metal catalyst. Our results show the strong advantages of graphdiyne-anchored metal atom catalysts in the field of electrochemical catalysis and opens up a new direction in the field of electrocatalysis.
石墨炔作为一种神奇的载体，能够锚定零价金属原子，为我们提供了一个开发具有最大化活性位点和选择性的新型催化剂的机会。在此，我们报道了通过将铜原子锚定在石墨炔（GDY）上用于析氢反应（HER）的高性能原子催化剂（ACs），即Cu/GDY。该催化剂的活性和选择性明显优于商业20 wt.%的Pt/C，其30.52 s的周转频率比20 wt.%的Pt/C大18倍。密度泛函理论（DFT）计算表明，强p-d耦合诱导的电荷补偿导致了原子尺度过渡金属催化剂的零价态。我们的结果显示了石墨炔锚定金属原子催化剂在电化学催化领域的强大优势，并为电催化领域开辟了一个新方向。
