The Catalytic Pathways of Hydrohalogenation over Metal-Free Nitrogen-Doped Carbon Nanotubes (pages 723–728)
Kai Zhou, Dr. Bo Li, Prof. Qiang Zhang, Dr. Jia-Qi Huang, Gui-Li Tian, Jin-Chao Jia, Dr. Meng-Qiang Zhao, Prof. Guo-Hua Luo, Prof. Dang Sheng Su and Prof. Fei Wei
Article first published online: 23 JAN 2014 | DOI: 10.1002/cssc.201300793
Hg, Mr. Bad Guy: Metal-free nitrogen-doped carbon nanotubes (CNTs) are employed as catalysts for C2H2 hydrochlorination; an essential reaction for poly(vinylchloride) (PVC) production currently done with toxic mercury catalysts. The catalysts combine high activity and excellent CH2CHCl selectivity. The quaternary nitrogen species play a role analogous to vacancies in metal cation complexes, and increase the probability of C2H2 chemisorption and the formation of a C2H2-pseudo-metal complex.