Chinese Journal of Chemical Engineering ›› 2021, Vol. 29 ›› Issue (1): 196-203.doi: 10.1016/j.cjche.2020.06.008

• Catalysis, Kinetics and Reaction Engineering • Previous Articles     Next Articles

High nitrogen carbon material with rich defects as a highly efficient metal-free catalyst for excellent catalytic performance of acetylene hydrochlorination

Fangjie Lu1, Dong Xu1, Yusheng Lu1, Bin Dai1,2, Mingyuan Zhu1,2   

  1. 1 School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832000, China;
    2 Key Laboratory for Green Processing of Chemical Engineering, Xinjiang Production and Construction Corps, Shihezi 832000, China
  • Received:2020-02-22 Revised:2020-05-06 Online:2021-01-28 Published:2021-04-02
  • Contact: Mingyuan Zhu
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (21666033), the State Key Research and Development Project of China (2016YFB0301603), and International Corporation of S&T Project in Xinjiang Production and Construction Corps (2018BC003).

Abstract: In this work, we developed a simple strategy to synthesize a carbon material with high nitrogen and rich carbon defects. Our approach polymerized diaminopyridine (DAP) and ammonium persulfate (APS). Following a range of different temperature pyrolysis approaches, the resulting rough surface was shown to exhibit edge defects due to N-doping on graphite carbon. A series of catalysts were evaluated using a variety of characterization techniques and tested for catalytic performance. The catalytic performance of the N-doped carbon material enhanced alongside an increment in carbon defects. The NC-800 catalyst exhibited outstanding catalytic activity and stability in acetylene hydrochlorination (C2H2 GHSV=30 h-1, at 220 ℃, the acetylene conversion rate was 98%), with its stability reaching up to 450 h. Due to NC-800 having a nitrogen content of up to 13.46%, it had the largest specific surface area and a high defect amount, as well as strong C2H2 and HCl adsorption. NC-800 has excellent catalytic activity and stability to reflect its unlimited potential as a carbon material.

Key words: Carbon defects material, High nitrogen content, Acetylene hydrochlorination, Catalyst, Chemical reaction, Nanomaterials