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Updated: Jan 9, 2026
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Boosting methane dry reforming via enhanced CO2 adsorption over TiN-supported Ni catalysts
Zhuoshi Zheng1, Yu Zhang1, Yanxi Zhao1
1Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan 430074, China. zhaoyx@scuec.edu.cn.
Abstract:
Herein, titanium nitride (TiN) is employed as a support for nickel (Ni) catalysts in the dry reforming of methane. TiN exhibits strong metal-support interactions that remarkably enhance Ni dispersion. In addition, TiN possesses strong CO2 and H2 adsorption properties and electron-donating capability. Collectively, these properties inhibit carbon buildup and enhance catalytic reactivity. A synergistic interaction with CaO, a secondary defence layer, dramatically boosts catalyst stability. At a similar initial conversion rate, the 5Ni-3CaO/TiN catalyst showed outstanding performance, achieving CH4 and CO2 conversion rates of 81.6% and 87.9%, respectively. The deactivation rates of DCH4 and DCO2 were 0.018 h-1 and 0.028 h-1, respectively, in the 20-hour stability test.
