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Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
A New Energy-Saving Catalytic System: Carbon Dioxide Activation by a Metal/Carbon Catalyst
Danim Yun1, Dae Sung Park1, Kyung Rok Lee1
1World Class University (WCU) Program of Chemical Convergence for Energy and Environment, Institute of Chemical Processes, School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-741, Republic of Korea.
Abstract:
The conversion of CO2 into useful chemicals is an attractive method to reduce greenhouse gas emissions and to produce sustainable chemicals. However, the thermodynamic stability of CO2 means that a lot of energy is required for its conversion into chemicals. Here, we suggest a new catalytic system with an alternative heating system that allows minimal energy consumption during CO2 conversion. In this system, electrical energy is transferred as heat energy to the carbon-supported metal catalyst. Fast ramping rates allow high operating temperatures (Tapp =250 °C) to be reached within 5 min, which leads to an 80-fold decrease of energy consumption in methane reforming using CO2 (DRM). In addition, the consumed energy normalized by time during the DRM reaction in this current-assisted catalysis is sixfold lower (11.0 kJ min-1 ) than that in conventional heating systems (68.4 kJ min-1 ).
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