摘要
Light-driven conversion of CO_(2)into chemicals/fuels is a desirable approach for achieving carbon neutral-ity using clean and sustainable energy.However,its scale-up application is restricted due to insufficient efficiency.Herein,we present a photothermal catalytic hydrogenation of CO_(2)into CH_(4)over Ru/black TiO_(2) catalysts,aiming to achieve the synergistic use of light and heat in solar energy during CO_(2)conversion.Owing to the desirable spectral response ability and photothermal conversion performance of black TiO_(2),an efficient combination of photocatalysis and thermocatalysis has been established.The CO_(2)hydrogena-tion was significantly accelerated because of the increased catalyst surface temperature enabled by the photothermal effect of black TiO_(2).Simultaneously,through the in situ X-ray photoelectron spectroscopy(XPS)observation,electron-rich Ru nanoparticles was achieved based on the photo-induced excitation,thereby providing more negative hydride to improve nucleophilic attack to the CO_(2),obtaining the CH_(4) yield of 93.8%.
基金
support from the National Natural Science Foundation of China (No.21978170)
the National Key R&D Program of China (No.2017YFC0506004)
the Natural Science Foundation of Shanghai (No.19ZR1424800)
the Center of Hydrogen Science,Shanghai Jiao Tong University,China。
作者简介
Corresponding authors:Fangming Jin.E-mail addresses:fmjin@sjtu.edu.cn;Corresponding authors:Yun Hang Hu.E-mail addresses:yunhangh@mtu.edu。
