Syngas production by photoreforming of formic acid with 2D V_(x)W_(1-x)N_(1.5) solid solution as an efficient cocatalyst  

作　　者：Xiaoyuan Ye Yuchen Dong Ziying Zhang Wengao Zeng Bin Zhu Tuo Zhang Ze Gao Anna Dai Xiangjiu Guan 

机构地区：[1]International Research Center for Renewable Energy,State Key Laboratory of Multiphase Flow in Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China

出　　处：《Frontiers in Energy》2024年第5期640-649,共10页能源前沿（英文版）

基　　金：supported by the Basic Science Center Program for Ordered Energy Conversion of the National Natural Science Foundation of China(Grant No.51888103);the National Natural Science Foundation of China(Grant No.52376209);the China Postdoctoral Science Foundation(Grant Nos.2020M673386,and 2020T130503);the Natural Science Basic Research Program of Shaanxi Province,China(Grant No.2019JCW-10);the Fundamental Research Funds for the Central Universities,China.

摘　　要：Formic acid(FA)is a potential biomass resource of syngas with contents of carbon monoxide(CO,60 wt.%)and hydrogen(H_(2),4.4 wt.%).Among the technologies for FA conversion,the photoreforming of FA has received widespread attention due to its use of green solar energy conversion technology and mild reaction conditions.Herein,a V-W bimetallic solid solution,V_(x)W_(1-x)N_(1.5) with efficient co-catalytic properties was first and facilely synthesized.When CdS was used as a photocatalyst,the activity performance of the V_(0.1)W_(0.9)N_(1.5) system was over 60%higher than that of the W_(2)N_(3) system.The computational simulations and experiments showed the V_(0.1)W_(0.9)N_(1.5) had great metallic features and large work functions,contributing a faster photo-generated carrier transfer and less recombination,finally facilitating a great performance in cocatalyst for syngas production in photoreforming FA.This work provides an approach to synthesizing novel transition metal nitrides for photocatalysis.

关 键 词：PHOTOCATALYSIS SYNGAS formic acid COCATALYST solid solution 

分 类 号：O64[理学—物理化学]