Boosting oxygen reduction with coexistence of single-atomic Fe and Cu sites decorated nitrogen-doped porous carbon

Liu，Heng1; Jiang，Luozhen2; Wang，Yamin3; Wang，Xinxin1; Khan，Javid1; Zhu，Yanlin1; Xiao，Jiamin1; Li，Lina2; Han，Lei1

2023-01-15

10.1016/j.cej.2022.138938

CHEMICAL ENGINEERING JOURNAL   影响因子和分区

1385-8947

1873-3212

Rational design of iron-nitrogen-carbon (Fe-N-C) oxygen reduction reaction (ORR) catalysts simultaneously increasing the intrinsic activity and density of active site remains a huge challenge. Herein the coexistence of single-atomic Fe and Cu sites decorated nitrogen-doped porous carbon has been successfully fabricated by hydrothermal synthesis of Fe, Cu co-doped ZIF-8 in the presence of Fe and Cu foam with subsequent NH pyrolysis. The X-ray absorption spectra confirmed the atomically dispersed Fe and Cu species with Fe-N and Cu-N coordination structures in the resultant FeCu SACs/NC catalyst. Meanwhile, the introduction of Cu has been experimentally and theoretically demonstrated to modulate the electronic structure of Fe active sites during the desorption of *OH intermediate process, as well as increase the density of Fe active sites, thereby effectively enhancing the intrinsic activity and selectivity toward the ORR.

Dual-metal single atomic site Metal foam Oxygen reduction reaction

SCI ; EI

英语

ESI高被引

其他

Fundamental Research Funds for the Central Universities[531118010232] ; Huxiang High -Level Talent Gathering Project of Hunan Province[2019RS1012] ; National Key Basic Research Program of China[2017YFA0403402] ; National Natural Science Foundation of China[U1932119]

Engineering

Engineering, Environmental ; Engineering, Chemical

WOS:000870514900002

ELSEVIER SCIENCE SA

20223712739943

Ammonia ; Atoms ; Binary alloys ; Carbon ; Catalyst activity ; Copper ; Doping (additives) ; Electrolytic reduction ; Hydrothermal synthesis ; Iron ; Metal foams ; Nitrogen ; Oxygen ; X ray absorption

Ore Treatment:533.1 ; Copper:544.1 ; Iron:545.1 ; Electromagnetic Waves:711 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Atomic and Molecular Physics:931.3

ENGINEERING

2-s2.0-85137817497

Scopus

1.College of Materials Science and Engineering,Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy,Hunan University,Changsha,Hunan,410082,China
2.Shanghai Synchrotron Radiation Facility,Shanghai Advanced Research Institute,Shanghai,China
3.Department of Chemistry,Guangdong Provincial Key Laboratory of Catalysis,Southern University of Science and Technology,Shenzhen,Guangdong,518000,China

Liu，Heng,Jiang，Luozhen,Wang，Yamin,et al. Boosting oxygen reduction with coexistence of single-atomic Fe and Cu sites decorated nitrogen-doped porous carbon[J]. CHEMICAL ENGINEERING JOURNAL,2023,452.

Liu，Heng.,Jiang，Luozhen.,Wang，Yamin.,Wang，Xinxin.,Khan，Javid.,...&Han，Lei.(2023).Boosting oxygen reduction with coexistence of single-atomic Fe and Cu sites decorated nitrogen-doped porous carbon.CHEMICAL ENGINEERING JOURNAL,452.

Liu，Heng,et al."Boosting oxygen reduction with coexistence of single-atomic Fe and Cu sites decorated nitrogen-doped porous carbon".CHEMICAL ENGINEERING JOURNAL 452(2023).