Interface strain engineering of Ir clusters on ultrathin NiO nanosheets for electrochemical water splitting over 1800 hours

作     者：Binyu Zhang Weiwei Li Kexi Zhanga Jingtao Gao Yang Cao Yuqian Cheng Delun Chen Qiang Wu Lei Ding Jinchun Tu Xiaolin Zhang Chenghua Sun Binyu Zhang;Weiwei Li;Kexi Zhang;Jingtao Gao;Yang Cao;Yuqian Cheng;Delun Chen;Qiang Wu;Lei Ding;Jinchun Tu;Xiaolin Zhang;Chenghua Sun

作者机构：State Key Laboratory of Marine Resource Utilization in South China SeaSchool of Materials Science and EngineeringHainan UniversityHaikou 570228China Key Laboratory of Child Cognition&Behavior Development of Hainan ProvinceQiongtai Normal UniversityHaikou 571127China Department of Clinical Laboratory of The Second Affiliated HospitalSchool of Tropical Medicine and Laboratory MedicineKey Laboratory of Emergency and Trauma of Ministry of EducationHainan Medical UniversityHaikou 571199China ARC Centre for Electromaterials ScienceSchool of ChemistryMonash UniversityClaytonVictoria 3800Australia 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2024年第177卷第10期

页      面：214-223页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：Hainan Province Science and Technology Special Fund(Nos.ZDYF2021SHFZ068 and ZDKJ2021029) National Natural Science Foundation of China(No.52262014) Hainan Provincial Natural Science Foundation of China(No.823CXTD376) Youth Foundation of Hainan Province(No.221QN0898) 

主　　题：Strain engineering Stability Electrocatalysts Two-dimensional material Water splitting 

摘      要：Strain engineering of two-dimensional(2D)material interfaces represents a powerful strategy for enhanc-ing the electrocatalytic activity of water ***,maintaining catalytic stability under various harsh conditions by introducing interface strain remains a great *** catalyst developed and evaluated herein comprised Ir clusters dispersed on 2D NiO nanosheets(NSs)derived from metal organic frameworks(lr@NiO/C_(BDc)),which displays a high activity and stability under all pH conditions,and even a change of only 1%in the applied voltage is observed after continuous electrocatalytic operation for over 1800 h under alkaline *** combined experimental and computational studies,we found that the introduced interfacial strain contributes to the outstanding structural stability of the Ir@NiO/CBDC catalyst,arising from its increased Ir and Ni vacancy formation energies,and hence suppressing its ***,strain also enhances the kinetically sluggish electrocatalytic water splitting reaction by op-timizing its electronic structure and coordination *** work highlights the effects of strain on catalyst stability and provides new insights for designing widely applicable electrocatalysts.