Dissolution-regrowth of hierarchical Fe-Dy oxide modulates the electronic structure of nickel-organic frameworks as highly active and stable water splitting electrocatalysts

作     者：Zixia Wan Qiuting He Jundan Chen Tayirjan Taylor Isimjan Bao Wang Xiulin Yang 万梓霞;何秋婷;陈菊丹;泰勒•伊西姆扬;王宝;杨秀林

作者机构：Guangxi Key Laboratory of Low Carbon Energy MaterialsSchool of Chemistry and Pharmaceutical SciencesGuangxi Normal UniversityGuilin 541004GuangxiChina State Key Laboratory of Biochemical EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Saudi Arabia Basic Industries Corporation(SABIC)at King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia 

基　　金：国家自然科学基金(21965005) 广西自然科学基金(2018GXNSFAA294077) 广西高层次人才工程项目(F-KA18015,2018ZD004) 广西研究生教育创新计划(XYCSZ2019056,YCBZ2019031) 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2020年第41卷第11期

页      码：1745-1753页

摘      要：As the kinetically sluggish oxygen evolution reaction(OER)is considered to be a bottleneck in overall water splitting,it is necessary to develop a highly active and stable electrocatalyst to overcome this ***,we successfully fabricated a three-dimensional iron-dysprosium oxide co-regulated in-situ formed MOF-Ni arrays on carbon cloth(FeDy@MOF-Ni/CC)through a facile two-step hydrothermal *** studies demonstrate that the designed FeDy@MOF-Ni/CC catalyst requires an overpotential of only 251 mV to reach 10 mA cm-2 with a small Tafel slope of 52.1 mV ***,the stability declined by only 5.5%after 80 h of continuous testing in 1.0 M ***,a cell voltage of only 1.57 V in the overall water splitting system is sufficient to achieve 10 mA cm-2;this value is far better than that of most previously reported *** excellent catalytic performance originates from the unique 3D rhombus-like structure,as well as coupling synergies of Fe-Dy-Ni *** combination of lanthanide and transition metal species in the synthesis strategy may open entirely new possibilities with promising potential in the design of highly active OER electrocatalysts.

主 题 词：Metal-organic frameworks Dysprosium oxide Synergistic effect Oxygen evolution Water splitting 

学科分类：081702[081702] 081705[081705] 08[工学] 0817[工学-轻工类] 080502[080502] 0805[工学-能源动力学] 

核心收录：

D　O　I：10.1016/S1872-2067(20)63606-3

馆 藏 号：203922562...