Fast and Facile Room-Temperature Synthesis of MOF-Derived Co Nanoparticle/Nitrogen-Doped Porous Graphene in Air Atmosphere for Overall Water Splitting

Yang, Guang1; Liu, Jingju1; Zhou, Ming1,2; Bai, Jing1; Bo, Xiangjie1

2020-08-17

10.1021/acssuschemeng.0c01008

ACS Sustainable Chemistry & Engineering   影响因子和分区

2168-0485

Generally, metal-organic framework (MOF)-derived electrocatalysts are prepared by thermal pyrolysis at high temperatures of around 600-900 degrees C and in inert atmosphere. Herein we introduce a laser-induced method for preparation of MOF-derived Co nanoparticle/nitrogen-doped porous graphene (Co/PNG) at room temperature and in air atmosphere. Through a laser scribing method, the organic complex is converted into nitrogen-doped graphene (PNG) and meanwhile the decomposition of the organic linker yields a reductive chemical atmosphere. This reductive atmosphere and high energy at the local position of laser irradiation allows the reduction of Co ions into atomic Co species and in turn enables the formation of Co/PNG. In addition, the flexible polyimide (PI) film-supported Co/PNG could be directly used as an electrode for electrocatalysis without the requirement of any binder. The electrocatalytic activity of the obtained electrode could be easily controlled by adjusting the power or the loading of MOFs. The electrocatalytic result indicates that Co/PNG shows satisfying activity and stability for water electrolysis. With the porous properties and Co-N-x active sites, the flexible electrode shows overpotentials of 131, 335, and 380 mV for hydrogen, oxygen evolution reaction, and overall water splitting reaction.

laser-induced graphene OXYGEN EVOLUTION overall water splitting BIFUNCTIONAL ELECTROCATALYSTS metal-organic framework ORGANIC FRAMEWORKS Co nanoparticles HYDROGEN COBALT CARBON PERFORMANCE REDUCTION CATALYSTS ZIF-67

SCI ; EI

英语

其他

Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[2018B030322001]

Chemistry ; Science & Technology - Other Topics ; Engineering

Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical

WOS:000562983600009

AMER CHEMICAL SOC

20203809201869

Atmospheric temperature ; Cobalt ; Metal nanoparticles ; Electrocatalysis ; Electrocatalysts ; Electrodes ; Doping (additives) ; Synthesis (chemical) ; Organic chemicals ; Metal-Organic Frameworks ; Organic lasers

Atmospheric Properties:443.1 ; Metallurgy:531.1 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Lasers, General:744.1 ; Nanotechnology:761 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1

Web of Science

1.Northeast Normal Univ, Fac Chem, Key Lab Nanobiosensing & Nanobioanal Univ Jilin P, Changchun 130024, Peoples R China;
2.Southern Univ Sci & Technol, Guangdong Prov Key Lab Energy Mat Elect Power, Shenzhen 518055, Guangdong, Peoples R China

Yang, Guang,Liu, Jingju,Zhou, Ming,et al. Fast and Facile Room-Temperature Synthesis of MOF-Derived Co Nanoparticle/Nitrogen-Doped Porous Graphene in Air Atmosphere for Overall Water Splitting[J]. ACS Sustainable Chemistry & Engineering,2020,8(32):11947-11955.

Yang, Guang,Liu, Jingju,Zhou, Ming,Bai, Jing,&Bo, Xiangjie.(2020).Fast and Facile Room-Temperature Synthesis of MOF-Derived Co Nanoparticle/Nitrogen-Doped Porous Graphene in Air Atmosphere for Overall Water Splitting.ACS Sustainable Chemistry & Engineering,8(32),11947-11955.

Yang, Guang,et al."Fast and Facile Room-Temperature Synthesis of MOF-Derived Co Nanoparticle/Nitrogen-Doped Porous Graphene in Air Atmosphere for Overall Water Splitting".ACS Sustainable Chemistry & Engineering 8.32(2020):11947-11955.