Oxygen promoted hydrogen production from formaldehyde reforming with oxide-derived Cu nanowires at room temperature  

作　　者：Yutong Wu Chuangwei Liu Yinglei Liu Gaowu Qin Song Li 

机构地区：[1]Key Lab for Anisotropy and Texture of Materials(MoE),School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China [2]Institute for Frontier Technologies of Low-Carbon Steelmaking,Shenyang 110819,China

出　　处：《Chinese Chemical Letters》2023年第6期206-210,共5页中国化学快报（英文版）

基　　金：supported by the China Bao Wu Low Carbon Metallurgical Innovation Foundation(No.BWLCF202113);the Fundamental Research Funds for the Central Universities(Nos.N2202012,N180206004);the National Natural Science Foundation of China(No.51971059)。

摘　　要：This work demonstrates a two-step method to produce oxide-derived Cu nanowires on Cu mesh surface to offer a monolithic catalyst that outstandingly improves the hydrogen production from reforming formaldehyde and water under ambient conditions.Our results not only reveal that the special oxidederived nanostructure can significantly improve the formaldehyde reforming performance of Cu,but also display that the hydrogen production has a linear relationship with oxygen pressure.Specially,a maximum of 36 times increment in hydrogen generation rate is observed than that without oxygen during the reaction.Density functional theory calculations show that the formaldehyde molecule is adsorbed on Cu surface only when the adsorbed oxygen is in adjacency,and hydrogen release process is the ratedetermining step.This work highlights that the activity of deliberately synthesized catalyst can further be promoted by dynamic chemical modulation of surface states during working.

关 键 词：Hydrogen production Oxide-derived Cu Dynamic chemical modulation Reforming formaldehyde Monolithic catalyst 

分 类 号：TQ116.2[化学工程—无机化工]