Abstract
Non-thermal plasma (NTP) combined with catalysts supplies a potential alternative to enable the CH4 and CO2 conversion to work at low temperatures. In this study, different Ni/BN catalysts were synthesized using modified wetness impregnation for CH4 and CO2 conversion in dielectric barrier discharge (DBD) plasma. Among, BN_IPA_Ni exhibited the highest catalytic performance with a CH4 conversion of 40.5%, a CO2 conversion of 26.6%, a H2 yield of 9.3% and a CO yield of 10.5%. The development of BO defects, which played a significant role in the size control of Ni particles to facilitate the dissociation of CH4 to form H*, is the key for the high catalysis activity and selectivity in this reaction. In addition, the BO defects of BN_IPA_Ni provide an efficient route to eliminate excess CHx species, which further inhibit the nucleation growth of carbon species to inert carbon.
Published Version
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