Metal-Organic Framework-Derived N-Doped Carbon with Controllable Mesopore Sizes for Low-Pt Fuel Cells

Huang, Qirui1; Hu, Linyu1,2; Chen, Xianchun1; Cai, Wenjun1; Wang, Lu1; Wang, Bo1

2023-07-01

10.1002/adfm.202302582

ADVANCED FUNCTIONAL MATERIALS   影响因子和分区

1616-301X

1616-3028

Mesoporous structure of carbon materials plays an important role in electrocatalyst design. Constructing carbon supports with tunable mesopores has long been a challenge. Herein, the elaborate regulation of mesopores in N-doped carbon materials is reported by pyrolyzing energetic metal-triazolate (MET) frameworks with different particle sizes and at different ramp rates. Higher thermal transfer rates brought about by smaller particle size and higher ramp rate lead to more violent decomposition with a large number of gases producing, which in turn result in larger mesopores in the derivatives. Consequently, a series of N-doped carbon materials with controllable mesopores are obtained. As a proof-of-concept, ultrafine Pt nanoparticles are enveloped inside these mesopores to acquire high-performance electrocatalysts for oxygen reduction reaction. The optimized catalyst achieves high mass activity of 1.52 A mg(Pt)(-1) at 0.9 ViR-free and peak power density of 0.8 W cm(-2) (H-2-Air) with an ultralow Pt loading of 0.05 mg(Pt) cm(-2) at cathode in fuel cells, highlighting the great advantages of MET-derived carbon materials with controllable mesopores in the preparation of advanced electrocatalysts.

electrocatalysts fuel cells metal-organic frameworks N-doped carbon porosity

SCI ; EI

英语

NI论文

其他

National Key Research and Development Program of China[2020YFB1506300] ; National Natural Science Foundation of China["21901019","21971017"] ; Beijing Institute of Technology Research and Innovation Promoting Project[2022YCXY024]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001022429500001

WILEY-V C H VERLAG GMBH

20232714360527

Carbon ; Catalyst activity ; Doping (additives) ; Electrolysis ; Electrolytic reduction ; Fuel cells ; Mesoporous materials ; Organometallics ; Particle size ; Platinum

Ore Treatment:533.1 ; Precious Metals:547.1 ; Fuel Cells:702.2 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1

MATERIALS SCIENCE

Web of Science

1.Beijing Inst Technol, Adv Technol Res Inst Jinan, Frontiers Sci Ctr High Energy Mat, Sch Chem & Chem Engn,Beijing Key Lab Photoelect El, Beijing 100081, Peoples R China
2.Southern Univ Sci & Technol, Sch Microelect, Shenzhen 518055, Peoples R China

Huang, Qirui,Hu, Linyu,Chen, Xianchun,et al. Metal-Organic Framework-Derived N-Doped Carbon with Controllable Mesopore Sizes for Low-Pt Fuel Cells[J]. ADVANCED FUNCTIONAL MATERIALS,2023,33.

Huang, Qirui,Hu, Linyu,Chen, Xianchun,Cai, Wenjun,Wang, Lu,&Wang, Bo.(2023).Metal-Organic Framework-Derived N-Doped Carbon with Controllable Mesopore Sizes for Low-Pt Fuel Cells.ADVANCED FUNCTIONAL MATERIALS,33.

Huang, Qirui,et al."Metal-Organic Framework-Derived N-Doped Carbon with Controllable Mesopore Sizes for Low-Pt Fuel Cells".ADVANCED FUNCTIONAL MATERIALS 33(2023).