Hetero-interfacial nickel nitride/vanadium oxynitride porous nanosheets as trifunctional electrodes for HER,OER and sodium ion batteries  

作　　者：Tuzhi Xiong Jingting Li Jagadish Chandra Roy Malcolm Koroma Zhixiao Zhu Hao Yang Lei Zhang Ting Ouyang M.-Sadeeq Balogun Mohammad Al-Mamun 

机构地区：[1]College of Materials Science and Engineering,Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy,Hunan University,Changsha 410082,Hunan,China [2]Centre for Catalysis and Clean Energy,Griffith University,Gold Coast Campus,Southport,QLD 4222,Australia [3]College of Mechanical and Vehicle Engineering,Hunan University,Changsha 410082,Hunan,China [4]Guangxi Key Laboratory of Electrochemical Energy Materials,School of Chemistry&Chemical Engineering,Guangxi University,Nanning 530004,Guangxi,China [5]Guangxi Key Laboratory of Information Materials,Guilin University of Electronic Technology,Guilin 541004,Guangxi,China

出　　处：《Journal of Energy Chemistry》2023年第6期71-81,I0003,共12页能源化学（英文版）

基　　金：supported by the Hunan Provincial Natural Science Foundation (2021JJ30087);the Science and Technology Innovation Program of Hunan Province (2022WZ1012);the Fundamental Research Funds for the Central Universities and Guangxi Key Laboratory of Information Materials&Guilin University of Electronic Technology,China (211011K)。

摘　　要：The development of single electrode with multifunctional purposes for electrochemical devices remains a symbolic challenge in recent technology.This work explores interfacially-rich transition metal nitride hybrid that consist of nickel nitride and vanadium oxynitride(VO_(0.26)N_(0.52))on robust carbon fiber(denoted CF/Ni_(3)N/VON)as trifunctional electrode for hydrogen evolution reaction(HER),oxygen evolution reaction(OER),and sodium ion batteries(SIBs).The as-prepared CF/Ni_(3)N/VON exhibits low HER overpotential of 48 m V@10 m A cm^(-2),OER overpotential of 287 m V@10 m A cm^(-2),and sodium-ion anode storage reversible capacity of 555 m A h g^(-1)@0.2 C.Theoretical analyses reveal that the Ni_(3)N effectively facilitates hydrogen desorption for HER,increases the electrical conductivity for OER,and promotes the Na-ion storage intercalation process,while the VON substantially elevates the water dissociation kinetics for HER,accelerates the adsorption of OH*intermediate for OER and enhances the Na-ion surface adsorption storage process.Owing to the excellent HER and OER performances of the CF/Ni_(3)N/VON electrode,an overall water splitting device denoted as CF/Ni_(3)N/VON//CF/Ni_(3)N/VON was not only assembled showing an operating voltage of 1.63 V at current density of 10 m A cm^(-2)but was also successfully self-powered by the assembled CF/Ni_(3)N/VON//CF/Na_(3)V_(2)(PO_(4))_(3) flexible sodium ion battery.This work will contribute to the development of efficient and cost-effective flexible integrated electrochemical energy devices.

关 键 词：Interstitial nitride Trifunctional electrode HETEROINTERFACE Alkaline water splitting Sodium ion battery 

分 类 号：TM912[电气工程—电力电子与电力传动] TB383.1[一般工业技术—材料科学与工程]