Defective/graphitic synergy in a heteroatom-interlinked-triggered metal-free electrocatalyst for high-performance rechargeable zinc-air batteries

Yasin, Ghulam1,2; Ibrahim, Sehrish3; Ibraheem, Shumaila1,2; Ali, Sajjad4; Iqbal, Rashid1,2; Kumar, Anuj5; Tabish, Mohammad6; Slimani, Yassine7; Nguyen, Tuan Anh8; Xu, Hu4; Zhao, Wei1

2021-08-01

10.1039/d1ta05812f

Journal of Materials Chemistry A   影响因子和分区

2050-7488

2050-7496

Motivated by the increased demand for energy storage technologies with maximum power density and safety, zinc-air batteries have drawn extensive attention. However, developing a competent and robust bifunctional oxygen reduction and oxygen evolution reaction (ORR/OER) catalyst and studying the underlying active-site mechanisms with the aim of optimizing the electrochemical process remains challenging. In this work, defective/graphitic synergy in heteroatom-interlinked-triggered asphaltene (D/G-HASP) is explored via Raman spectroscopy, density functional theory (DFT), and other characterization approaches, in which reactions involving the oxygen-containing intermediates on the carbon substrate can be accelerated by the electron deficit triggered by heteroatoms, thus enhancing the oxygen reaction performance. As estimated, D/G-HASP reveals a superior half-wave potential (E-1/2 = 840 mV) and the lowest overpotential (eta(10) = 310 mV) towards the ORR and OER compared to its other counterparts. Remarkably, zinc-air batteries primed with such an air-electrode show outstanding reversibility and stability. This effort hence delivers insightful understanding of the synergistic reaction principles of heteroatom-interlinked-triggering nanomaterials when used in zinc-air batteries.

SCI ; EI

英语

通讯

Natural Science Foundation of China[21972096] ; Shenzhen Science and Technology Program[JCYJ20190808150615285]

Chemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000686891600001

ROYAL SOC CHEMISTRY

20213610859061

Catalyst activity ; Defects ; Density functional theory ; Electrocatalysts ; Electrodes ; Electrolytic reduction ; Energy storage ; Oxygen ; Oxygen evolution reaction ; Oxygen reduction reaction ; Reaction intermediates ; Zinc

Energy Storage:525.7 ; Ore Treatment:533.1 ; Zinc and Alloys:546.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Probability Theory:922.1 ; Materials Science:951

Web of Science

1.Shenzhen Univ, Inst Adv Study, Shenzhen 518060, Guangdong, Peoples R China
2.Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Guangdong, Peoples R China
3.Beijing Univ Chem Technol, Coll Life Sci & Technol, Beijing 100029, Peoples R China
4.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
5.GLA Univ, Dept Chem, Nanotechnol Res Lab, Mathura 281406, Uttar Pradesh, India
6.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
7.Imam Abdulrahman Bin Faisal Univ, Dept Biophys, Inst Res & Med Consultat IRMC, Dammam 31441, Saudi Arabia
8.Vietnam Acad Sci & Technol, VAST, Inst Trop Technol, Hanoi, Vietnam

Yasin, Ghulam,Ibrahim, Sehrish,Ibraheem, Shumaila,et al. Defective/graphitic synergy in a heteroatom-interlinked-triggered metal-free electrocatalyst for high-performance rechargeable zinc-air batteries[J]. Journal of Materials Chemistry A,2021,9:18222-18230.

Yasin, Ghulam.,Ibrahim, Sehrish.,Ibraheem, Shumaila.,Ali, Sajjad.,Iqbal, Rashid.,...&Zhao, Wei.(2021).Defective/graphitic synergy in a heteroatom-interlinked-triggered metal-free electrocatalyst for high-performance rechargeable zinc-air batteries.Journal of Materials Chemistry A,9,18222-18230.

Yasin, Ghulam,et al."Defective/graphitic synergy in a heteroatom-interlinked-triggered metal-free electrocatalyst for high-performance rechargeable zinc-air batteries".Journal of Materials Chemistry A 9(2021):18222-18230.