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Synergy between β-Mo2C Nanorods and Non-thermal Plasma for Selective CO2 Reduction to CO
Chem ( IF 19.1 ) Pub Date : 2020-10-26 , DOI: 10.1016/j.chempr.2020.09.016
Xiao Zhang , Yang Liu , Mengtao Zhang , Tao Yu , Bingbing Chen , Yao Xu , Mark Crocker , Xiaobing Zhu , Yuchen Zhu , Rongming Wang , Dequan Xiao , Mingshu Bi , Ding Ma , Chuan Shi

Synergy between plasma and catalysis has long been recognized, but efforts to improve synergy and energy efficiency remain both highly desirable and challenging. Herein, β-Mo2C nanorods were coupled with non-thermal plasma (NTP) to catalyze selective CO2 reduction to CO by H2 or CH4. Unprecedented catalytic activity and selectivity were achieved without additional thermal input, and the turnover frequency (TOF) was an order of magnitude higher than that obtained during thermal catalysis. The porous-structured β-Mo2C nanorods not only possessed large accessible surfaces but also facilitated charge deposition to generate a strong local electric field when NTP was coupled. The interplay between β-Mo2C nanorods and NTP boosted the synergy and energy efficiency: the TOF and CO specific energy yield were 1.4–2 times and ∼10 times higher, respectively, than those of β-Mo2C nanoparticles. This strategy of coupling regularly shaped catalytic materials with NTP provides new opportunities to improve the efficiency of plasma-assisted catalytic processes.



中文翻译:

β-Mo系之间的协同2 ç纳米棒和非热等离子体对CO选择性2还原成CO

等离子体和催化作用之间的协同作用早已得到认可,但是提高协同作用和能效的努力仍然是高度期望和挑战性的。这里,β-沫2 ç纳米棒加上非热等离子体(NTP)来催化选择性CO 2由H还原成CO 2或CH 4。无需额外的热输入即可实现前所未有的催化活性和选择性,并且周转频率(TOF)比在热催化过程中获得的周转频率高一个数量级。多孔结构的β-沫2 ç纳米棒不仅具有大的可及表面又促进电荷沉积,以产生强的局部电场时NTP偶联。β-Mo之间的相互作用2个ç纳米棒和NTP升压后的协同作用和能量效率:TOF和CO的比能量收率分别为1.4-2倍和〜10倍,比β-Mo系的2 Ç纳米颗粒。这种将规则形状的催化材料与NTP耦合的策略为提高等离子体辅助催化过程的效率提供了新的机会。

更新日期:2020-12-03
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