By adjusting various Ru/M （M=Co, Ni） molar ratios, a series of highly dispersed bimetallic RuM alloy nanoparticles （NPs） anchored on MIL-110（Al） have been successfully prepared via a conventional impregnation-re...By adjusting various Ru/M （M=Co, Ni） molar ratios, a series of highly dispersed bimetallic RuM alloy nanoparticles （NPs） anchored on MIL-110（Al） have been successfully prepared via a conventional impregnation-reduction method. And they are first used as heterogeneous catalysts for the dehydrogenation reaction of AB at room temperature. The results reveal that the as-prepared RulCo1@MIL-110 and RulNi1@MIL-110 exhibit the highest catalytic activities in different RuCo and RuNi molar ratios, respectively. It is worthy of note that the turnover frequency （TOF） values of Ru1Co1@MIL-110 and Ru1Ni1@MIL-110 catalysts reached 488.1 and 417.1 mol H2 min-1 （mol Ru）-1 and the activation energies （Ea） are 31.7 and 36.0 k J/tool, respectively. The superior catalytic performance is attributed to the bimetallic synergistic action between Ru and M, uniform distribution of metal NPs as well as bi-functional effect between RuM alloy NPs and MIL-110. Moreover, these catalysts exhibit favorable stability after 5 consecutive cycles for the hydrolysis of AB.展开更多
基金supported by the Natural Science Fund for Creative Research Groups of Hubei Province(No.2014CFA015)Hubei Province Education Office Key Laboratory(No.2016-KL-007)of Chinasupported by the Hubei College Students’Innovation Training Program of China(No.201410512024and No.201510512030)
文摘By adjusting various Ru/M （M=Co, Ni） molar ratios, a series of highly dispersed bimetallic RuM alloy nanoparticles （NPs） anchored on MIL-110（Al） have been successfully prepared via a conventional impregnation-reduction method. And they are first used as heterogeneous catalysts for the dehydrogenation reaction of AB at room temperature. The results reveal that the as-prepared RulCo1@MIL-110 and RulNi1@MIL-110 exhibit the highest catalytic activities in different RuCo and RuNi molar ratios, respectively. It is worthy of note that the turnover frequency （TOF） values of Ru1Co1@MIL-110 and Ru1Ni1@MIL-110 catalysts reached 488.1 and 417.1 mol H2 min-1 （mol Ru）-1 and the activation energies （Ea） are 31.7 and 36.0 k J/tool, respectively. The superior catalytic performance is attributed to the bimetallic synergistic action between Ru and M, uniform distribution of metal NPs as well as bi-functional effect between RuM alloy NPs and MIL-110. Moreover, these catalysts exhibit favorable stability after 5 consecutive cycles for the hydrolysis of AB.
