Study of engineering electronic structure modulated non-noble metal oxides for scaled-up alkaline blend seawater splitting

作     者：Natarajan Logeshwaran Subramanian Vijayapradeep Ae Rhan Kim Prabhakaran Sampath Shanmugam Ramakrishnan Milan Babu Poudel Do Hwan Kim Dong Jin Yoo Natarajan Logeshwaran;Subramanian Vijayapradeep;Ae Rhan Kim;Prabhakaran Sampath;Shanmugam Ramakrishnan;Milan Babu Poudel;Do Hwan Kim;Dong Jin Yoo

作者机构：Graduate SchoolDepartment of Energy Storage/Conversion Engineering(BK21 FOUR)Hydrogen and Fuel Cell Research CenterJeonbuk National University567-Baekje-daeroDeokjin-guJeonju-siJeollabuk-do 54896Republic of Korea Department of Life ScienceJeonbuk National University567-Baekje-daeroDeokjin-guJeonju-siJeollabuk-do 54896Republic of Korea Division of Science Education and Institute of Fusion ScienceJeonbuk National University567-Baekje-daeroDeokjin-guJeonju-siJeollabuk-do 54896Republic of Korea Department of Nano Convergence EngineeringJeonbuk National University567-Baekje-daeroDeokjin-guJeonju-siJeollabuk-do 54896Republic of Korea School of EngineeringMerz CourtNewcastle UniversityNE17RUUnited Kingdom 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2023年第86卷第11期

页      面：167-179,I0004页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the GEONJI Research support program supported by Basic Science Research through the National Research Foundation of Korea(NRF)funded by the Ministry of Education(NRF-2021R1I1A1A01050905) supported by grants from the Medical Research Center Program(NRF-2017R1A5A2015061)through the National Research Foundation(NRF),which is funded by the Korean government(MSIP) supported by Basic Science Research Program through the National Research Foundation of Korea(NRF)funded by the Ministry of Science,ICT and Future Planning(NRF-2020R1A2B5B01001458) 

主　　题：Waterel ectrolysis Mn-Ni oxide complex Chlorine evolution reaction Industrial seawater operations Density functional theory calculations 

摘      要：Scaled-up industrial water electrolysis equipment that can be used with abundant seawater is key for affordable hydrogen *** search for highly stable,dynamic,and economical electrocatalysts could have a significant impact on hydrogen ***,we prepared energy-efficient,scalable,and engineering electronic structure modulated Mn-Ni bimetal oxides(Mn_(0.25)Ni_(0.75)O)through simple hydrothermal followed by calcination ***-optimized Mn_(0.25)Ni_(0.75)O displayed enhanced oxygen and hydrogen evolution reaction(OER and HER)performance with overpotentials of 266 and115 mV at current densities of 10 mA cm^(-2)in alkaline KOH added seawater electrolyte ***,Mn-Ni oxide catalytic benefits were attributed to the calculated electronic configurations and Gibbs free energy for OER,and HER values were estimated using first principles *** real-time practical application,we mimicked industrial operating conditions with modified seawater electrolysis using Mn_(0.25)Ni_(0.75)O‖Mn_(0.25)Ni_(0.75)O under various temperature conditions,which performs superior to the commercial IrO_(2)‖Pt-C *** findings demonstrate an inexpensive and facile technique for feasible large-scale hydrogen production.