Controllable preparation and synergistically improved catalytic performance of TiC/C hybrid nanofibers via electrospinning for the oxygen reduction reaction

Wei，Zhaohuan1,2; Ren，Yaqi3; Zhao，Hong4; Wang，Minkang5; Tang，Hui5

2020-11-01

10.1016/j.ceramint.2020.06.325

CERAMICS INTERNATIONAL   影响因子和分区

0272-8842

1873-3956

Alkaline fuel cells are considered as promising energy conversion devices for future application, and oxygen reduction reaction (ORR) catalyst is one of the critical factors in determining fuel cells' performance. However, the application of conventional Pt-based catalysts is limited by its high cost and insufficient reserve. Here we synthesized TiC/C nanofibers as ORR catalyst through electrospinning. The morphology, TiC content, and interface between TiC and carbon in TiC/C nanofibers could be adjusted by changing preparation conditions. The changes in material properties affect the catalytic performance due to the synergistic enhanced effect between TiC and carbon. The best TiC/C sample (TCNFs/C) exhibited the ORR performance with the onset potential, peak potential, peak current density, and charge transfer number of 0.941 V vs. RHE, 0.812 V vs. RHE, 0.742 mA cm, and 3.29, respectively, as well as good catalytic durability and excellent methanol tolerance. The results demonstrate the great research value and application potential of TiC/C nanofibers as ORR catalysts.

Alkaline fuel cells Oxygen reduction reaction Synergetic effect TiC/C

SCI ; EI

英语

通讯

National Natural Science Foundation of China[51702040] ; Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[2018B030322001] ; Sichuan Science and Technology Program[2020YJ0392] ; Fundamental Research Funds for the Chinese Central Universities[ZYGX2017KYQD193] ; Chengdu Technological University Program[2018RC017]

Materials Science

Materials Science, Ceramics

WOS:000575656600004

ELSEVIER SCI LTD

20202908941456

Alkaline fuel cells ; Electrospinning ; Catalysts ; Nanofibers ; Charge transfer ; Electrolytic reduction ; Oxygen

Ore Treatment:533.1 ; Fuel Cells:702.2 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Fiber Chemistry and Processing:819.3 ; Solid State Physics:933

MATERIALS SCIENCE

2-s2.0-85087839239

Scopus

1.School of Physics,University of Electronic Science and Technology of China,Chengdu,611731,China
2.Guangdong Provincial Key Laboratory of Energy Materials for Electric Power,Southern University of Science and Technology,Shenzhen,518055,China
3.School of Materials and Environmental Engineering,Chengdu Technological University,Chengdu,611730,China
4.School of Materials Science and Energy Engineering,Foshan University,Foshan,528225,China
5.School of Materials and Energy,University of Electronic Science and Technology of China,Chengdu,611731,China

Wei，Zhaohuan,Ren，Yaqi,Zhao，Hong,et al. Controllable preparation and synergistically improved catalytic performance of TiC/C hybrid nanofibers via electrospinning for the oxygen reduction reaction[J]. CERAMICS INTERNATIONAL,2020,46(16):25313-25319.

Wei，Zhaohuan,Ren，Yaqi,Zhao，Hong,Wang，Minkang,&Tang，Hui.(2020).Controllable preparation and synergistically improved catalytic performance of TiC/C hybrid nanofibers via electrospinning for the oxygen reduction reaction.CERAMICS INTERNATIONAL,46(16),25313-25319.

Wei，Zhaohuan,et al."Controllable preparation and synergistically improved catalytic performance of TiC/C hybrid nanofibers via electrospinning for the oxygen reduction reaction".CERAMICS INTERNATIONAL 46.16(2020):25313-25319.