Iron-doped metal-organic framework with enhanced oxygen evolution reaction activity for overall water splitting

Pan，Yangdan1; Zhang，Jianshuo2; Zhao，Zhiliang2; Shi，Le3; Wu，Buke1; Zeng，Lin1,4,5

2021

10.1016/j.ijhydene.2021.08.031

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY   影响因子和分区

0360-3199

1879-3487

Water electrolysis is an energy conversion technology to provide green and clean hydrogen energy. Developing a high-efficient and durable electrocatalyst is a critical material for water electrolysis. Therefore, we synthesize a series of iron-doped metal-organic frameworks (MOFs) by a facile one-pot hydrothermal method. In the conventional three-electrode-cell, the Co/Fe (1:1)-MOF catalyst exhibits an overpotential of 317 mV at a current density of 10 mA cm in the oxygen evolution reaction (OER). Furthermore, the electrolysis performance of Co/Fe (1:1)-MOF catalyst is further evaluated in a home-made anion-exchange-membrane water electrolysis cell. With the Co/Fe (1:1)-MOF as the OER catalyst and commercial Pt/C as the hydrogen-evolution-reaction catalyst, the cell presents an overpotential of 490 mV at a large current density of 500 mA cm, which is superior to the benchmark cell with commercial IrO as the OER catalyst in the alkaline media. Theoretical calculation demonstrates that the introduction of Fe dopant into MOFs significantly reduces the binding energy of ∗O and ∗OOH intermedium during the OER progress. Consequently, the electrocatalytic activity is increased, which is perfectly consistent with the experimental results. This work suggests that the iron-doped MOFs structure significantly improves the electrocatalytic activity and provides a facile strategy to produce hydrogen at a large current density for industrial water electrolysis.

Anion exchange membrane Iron-doped Metal-organic framework Oxygen evolution reaction Water electrolysis

EI ; SCI

英语

第一 ; 通讯

Chemistry ; Electrochemistry ; Energy & Fuels

Chemistry, Physical ; Electrochemistry ; Energy & Fuels

WOS:000709573300004

PERGAMON-ELSEVIER SCIENCE LTD

20213510823708

Binding energy ; Current density ; Electrocatalysts ; Electrolysis ; Energy conversion ; Hydrogen production ; Ion exchange membranes ; Iridium compounds ; Organic polymers ; Organometallics ; Oxygen

Gas Fuels:522 ; Energy Conversion Issues:525.5 ; Iron:545.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Physical Chemistry:801.4 ; Electrochemistry:801.4.1 ; Chemical Plants and Equipment:802.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Organic Polymers:815.1.1

ENGINEERING

2-s2.0-85113355990

Scopus

1.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.State Key Laboratory of Electrical Insulation and Power Equipment,Center of Nanomaterials for Renewable Energy,School of Electrical Engineering,Xi'an Jiaotong University,Xi'an,710049,China
4.Guangdong Provincial Key Laboratory of Energy Materials for Electric Power,Southern University of Science and Technology,Shenzhen,518055,China
5.Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices,Southern University of Science and Technology,Shenzhen,518055,China

Pan，Yangdan,Zhang，Jianshuo,Zhao，Zhiliang,et al. Iron-doped metal-organic framework with enhanced oxygen evolution reaction activity for overall water splitting[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2021,46(70):34565-34573.

Pan，Yangdan,Zhang，Jianshuo,Zhao，Zhiliang,Shi，Le,Wu，Buke,&Zeng，Lin.(2021).Iron-doped metal-organic framework with enhanced oxygen evolution reaction activity for overall water splitting.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,46(70),34565-34573.

Pan，Yangdan,et al."Iron-doped metal-organic framework with enhanced oxygen evolution reaction activity for overall water splitting".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 46.70(2021):34565-34573.