title: Nitrogen-doped Carbon Derived from ZIF-8 as a High-performance Metal-free Catalyst for Acetylene Hydrochlorination.
abstract: Acetylene hydrochlorination is a major industrial technology for manufacturing vinyl chloride monomer in regions with abundant coal resources; however, it is plagued by the use of mercury(II) chloride catalyst. The development of a nonmercury catalyst has been extensively explored. Herein, we report a N-doped carbon catalyst derived from ZIF-8 with both high activity and quite good stability. The acetylene conversion reached 92% and decreased slightly during a 200 h test at 220 °C and atmospheric pressure. Experimental studies and theoretical calculations indicate that C atoms adjacent to the pyridinic N are the active sites, and coke deposition covering pyridinic N is the main reason for catalyst deactivation. The performance of those N-doped carbons makes it possible for practical applications with further effort. Furthermore, the result also provides guidance for designing metal-free catalysts for similar reactions.
authors.affiliation: College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, China.
authors.forename: Songlin
authors.initials: S
authors.lastname: Chao
authors.affiliation: College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, China.
authors.forename: Fang
authors.initials: F
authors.lastname: Zou
authors.affiliation: College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, China.
authors.forename: Fanfan
authors.initials: F
authors.lastname: Wan
authors.affiliation: College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, China.
authors.forename: Xiaobin
authors.initials: X
authors.lastname: Dong
authors.affiliation: College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, China.
authors.forename: Yanlin
authors.initials: Y
authors.lastname: Wang
authors.affiliation: College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, China.
authors.forename: Yuxuan
authors.initials: Y
authors.lastname: Wang
authors.affiliation: College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, China.
authors.forename: Qingxin
authors.initials: Q
authors.lastname: Guan
authors.affiliation: College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, China.
authors.forename: Guichang
authors.initials: G
authors.lastname: Wang
authors.affiliation: College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, China.|Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300071, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Li