The electrochemical reforming of glycerol at Pd nanocrystals modified ultrathin NiO nanoplates hybrids:An efficient system for glyceraldehyde and hydrogen coproduction  

作　　者：Ge Ma Na Yang Guofu Zhou Xin Wang 

机构地区：[1]South China Academy of Advanced Optoelectronics and International Academy of Optoelectronics at Zhaoqing,South China Normal University,Guangzhou 510631,China

出　　处：《Nano Research》2022年第3期1934-1941,共8页纳米研究（英文版）

基　　金：Outstanding Youth Project of Guangdong Natural Science Foundation(No.2021B1515020051);Science and Technology Program of Guangzhou(No.2019050001);Yunnan Expert Workstation(No.202005AF150028).

摘　　要：The glycerol electro-oxidation reaction(GEOR)is a green and promising method for the glyceraldehyde production.In this work,Pd nanocrystals(Pd-NCs)modified ultrathin NiO nanoplates(NiO-uNPs)hybrids(Pd-NCs/NiO-uNPs)are successfully synthesized using successive cyanogel hydrolysis,chemical reduction,and calcination treatment methods.Various electrochemical measurements and physicochemical characterization results demonstrate that Pd-NCs/NiO-uNPs hybrids have excellent electrocatalytic performance for both GEOR and hydrogen evolution reaction(HER)in alkaline medium,which benefit from the large specific surface area,uniform distribution of Pd-NCs,and the modified electronic structure of Ni atoms.At Pd-NCs/NiO-uNPs hybrids,only 1.43 V is needed to obtain the current density of 100 mA∙cm^(−2) for GEOR,much lower than that for oxygen evolution reaction(1.82 V).In addition,Pd-NCs/NiO-uNPs hybrids exhibit better HER performance than commercial Pd/C electrocatalyst.As a result,the constructed Pd-NCs/NiO-uNPs||Pd-NCs/NiO-uNPs glycerol electrolyzer only requires 1.62 V electrolysis voltage to reach 10 mA∙cm^(−2) current density,showing an energy-efficient and economy-competitive synthesis for the coproduction of glyceraldehyde and hydrogen.

关 键 词：NiO nanoplates Pd nanocrystals synergistic effect glycerol electro-oxidation reaction hydrogen evolution reaction 

分 类 号：TQ116.2[化学工程—无机化工] O646[理学—物理化学] TB383[理学—化学]