Single-doped charged gold cluster with highly selective catalytic activity for the reduction of SO2 by CO: First-principles study*

Project supported by the National Natural Science Foundation of China (Grant No. 11375091), the Natural Science Foundation of Zhejiang, China (Grant No. LY18A040003), the Natural Science Foundation of Ningbo, China (Grant No. 2018A610220), and the K.C. Wong Magna Fund in Ningbo University, China. The computation was performed in the Supercomputer Center of NBU.

Hu Yan-Ling, Zhu Hao-Ran, Wei Shi-Hao
       

Energy profile for reduction of SO2 by CO with Au5Cu cluster. The brown, yellow, grey, red, orange, blue, and indigo spheres represent copper, gold, carbon, oxygen, sulfur, platinum, and nickel atoms, respectively. The rectangle figure shows that, for Au5Ni, S, and CO cannot be combined into COS molecule in the third step of reaction. The ellipse figure shows that, for Au5Pt, SO molecule lies flat on the Pt–Au (or Pt–Ni) bond in the second elementary step, resulting in a strong combination of SO and Au5Pt (or Au5Ni) cluster.