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전임교원이 최근 5년간 출판한 논문 중, 연도별 카테고리별 피인용 상위 1%에 달성된 논문
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SCIE Article

Scalable 3-D Carbon Nitride Sponge as an Efficient Metal-Free Bifunctional Oxygen Electrocatalyst for Rechargeable Zn-Air Batteries

Author

Shinde, Sambhaji; Lee, Chi-Ho; Sami, Abdul; Kim, Dong-Hyung; Lee, Sang-Uck; Lee, Jung-Ho

Corresponding Author Info

Prof. Lee, Sang Uck (바이오나노학과 이상욱 교수)

Professor

E-mail

sulee@hanyang.ac.kr

Document Type

Source

ACS NANO 2017, 11, 1, 347-357

Times Cited

excluded

External Information

https://pubs.acs.org/doi/10.1021/acsnano.6b05914

Abstract

History]
- 7월/8월 2021부로, 이 인용 빈도가 높은 논문의 인용 횟수가 분야와 출판 연도에 대해 인용 빈도가 높은 임계값을 기반으로 Materials Science 관련 학술 분야에서 상위 1%에 올랐습니다.

[Abstract]
Rational design of efficient and durable bifunctional oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) electrocatalysts is critical for rechargeable metal-air batteries. Here, we developed a facile strategy for fabricating three-dimensional phosphorus and sulfur codoped carbon nitride sponges sandwiched with carbon nanocrystals (P,S-CNS). These materials exhibited high surface area and superior ORR and OER bifunctional catalytic activities than those of Pt/C and RuO2, respectively, concerning its limiting current density and onset potential. Further, we tested the suitability and durability of P,S-CNS as the oxygen cathode for primary and rechargeable Zn-air batteries. The resulting primary Zn-air battery exhibited a high open-circuit voltage of 1.51 V, a high discharge peak power density of 198 mW cm(-2), a specific capacity of 830 mA h g(-1), and better durability for 210 h after mechanical recharging. An extraordinary small charge-discharge voltage polarization (similar to 0.80 V at 25 mA cm(-2)), superior reversibility, and stability exceeding prolonged charge-discharge cycles have been attained in rechargeable Zn-air batteries with a three-electrode system. The origin of the electro catalytic activity of P,S-CNS was elucidated by density functional theory analysis for both oxygen reactions. This work stimulates an innovative prospect for the enrichment of rechargeable Zn-air battery viable for commercial applications such as armamentaria, smart electronics, and electric vehicles.

Web of Science Categories

Chemistry, MultidisciplinaryChemistry, PhysicalNanoscience & NanotechnologyMaterials Science, Multidisciplinary

Funding

Language

전체 Excluded 기타

	Scalable 3-D Carbon Nitride Sponge as an Efficient Metal-Free Bifunctional Oxygen Electrocatalyst for Rechargeable Zn-Air Batteries Author(s) : Shinde, Sambhaji; Lee, Chi-Ho; Sami, Abdul; Kim, Dong-Hyung; Lee, Sang... Source : ACS NANO 2017, 11, 1, 347-357 Time Cited : excluded
	Scalable 3-D Carbon Nitride Sponge as an Efficient Metal-Free Bifunctional Oxygen Electrocatalyst for Rechargeable Zn-Air Batteries Author(s) : Shinde, Sambhaji; Lee, Chi-Ho; Sami, Abdul; Kim, Dong-Hyung; Lee, Sang... Source : ACS NANO 2017, 11, 1, 347-357 Time Cited : excluded
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