Light assisted CO2 reduction with methane over group VIII metals: Universality of metal localized surface plasmon resonance in reactant activation
Light assisted CO2 reduction with methane over group VIII metals: Universality of metal localized surface plasmon resonance in reactant activation
复制标题
光辅助甲烷在第 VIII 族金属上还原 CO2：金属局域表面等离子体共振在反应物活化中的普遍性
DOI：
10.1016/j.apcatb.2017.02.080
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发表时间：
2017-07
影响因子：
22.1
通讯作者：
Ye Jinhua
中科院分区：
文献类型：
--
作者：
Liu Huimin;Thang Duy Dao;Liu Lequan;Meng Xianguang;Nagaoa Tadaaki;Ye Jinhua
光催化将温室气体CO2还原成有价值的化合物有利于环境保护。在本研究中，采用最近开发的新型CO2光还原方法，即光辅助热驱动CO2重整与CH4转化为合成气（DRM）作为目标反应，并以VIII族金属，特别是Ni/Al2O3作为探针催化剂。随着光的引入，Ni/Al2O3的活性几乎呈线性增加，并且增量与两个相邻Ni颗粒感应的电磁场强度高度对应，再加上10Ni/Al2O3的波长依赖性性能，表明Ni局域表面等离子体共振（LSPR）提高了性能。与其他第 VIII 族金属（例如 Rh 基和 Fe 基催化剂）相比，还可以观察到 LSPR 增强的催化性能，并且可以预期金属 LSPR 反应物活化的普遍性。该研究首次揭示，不仅限于IB金属，VIII族金属也可以用作等离子体促进剂，并通过光照射增强催化剂的活性。
Photo-catalytically reducing the greenhouse gas CO2into valuable compounds is beneficial for environmental protection. In this study, a recently developed novel CO2photoreduction approach, light assisted thermal-driven CO2reforming with CH4into syngas (DRM), is adopted as the target reaction, with group VIII metals, especially Ni/Al2O3, as the probe catalysts. With light introduction, the activities of Ni/Al2O3nearly linearly increased and the increments were in highly correspondence to the intensity of the electromagnetic field induced by two adjacent Ni particles, together with the wavelength-dependent performances over 10Ni/Al2O3, it indicated it was Ni localized surface plasmon resonance (LSPR) that improved the performances. The LSPR enhanced catalytic performance could also be observed over other group VIII metals, such as Rh- and Fe- based catalysts, and the universality of reactant activation by metal LSPR could be expected. This study firstly revealed that not merely limited to IB metals, group VIII metals could also be adopted as plasmonic promoters and enhance the activity of a catalyst with light irradiation.
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影响因子：
5.6
作者：
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