光热治疗
催化作用
化学
热的
工作(物理)
太阳能
甲烷
能量平衡
光热效应
纳米技术
化学工程
材料科学
光化学
热力学
有机化学
物理
工程类
生物
生态学
作者
Jinqiang Zhang,Yunguo Li,Jiaming Sun,Haijun Chen,Yuezhao Zhu,Xiaoli Zhao,Lai-Chang Zhang,Shuaijun Wang,Huayang Zhang,Xiaoguang Duan,Lei Shi,Shu Zhang,Peng Zhang,Guosheng Shao,Mingbo Wu,Shaobin Wang,Hongqi Sun
标识
DOI:10.1016/j.apcatb.2022.121263
摘要
Thermal and solar energies are two pivotal components in photothermal catalysis, however, their synergistic energy efficiency for a maximum yield is more important but less investigated. Herein, systematic studies unveil the promotion effects of external heat on the excitation and utilization of energetic hot carriers (EHC) on Pt/TiO2 in photothermal catalysis. Onset reaction temperature of a reaction is found to be the key in control of the energy synergy. When the minimum onset reaction temperature of uphill processes is exceeded, a smaller number of active sites on the catalyst are available to EHC, resulting in a suppressed thermal effect. Rational regulation of EHC and thermal energy in photothermal catalysis leads to optimum quantum efficiencies of both dry reforming of methane and reverse water-gas shift reactions at a medium level of temperature. This work provides new insights to balance thermal and solar-driven catalysis to better conduct photothermal catalysis for fossil fuels upgrading.
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