The Influence of Supporting Electrolytes on Zinc Half-Cell Performance in Zinc/Bromine Flow Batteries

W2237493828 · 수집 2026-10-04 18:12:22

T10030 Electrocatalysts for Energy Conversion

CoT 라벨링

라벨링 전

PDF 파일

저장된 PDF 없음

기본 정보

DOI 제목 발행년도 저널 URL 페이지 열기 PDF URL PDF 열기 발행기관 피인용수 라이선스

추가 정보 초록

Five supporting electrolytes were studied for their viability as alternatives in the zinc half-cell of a zinc/bromine (Zn/Br) flow battery. The secondary electrolytes studied included sodium salts of the following anions: Br−, SO42–, H2PO4− and NO3−, which were compared against the conventionally employed Cl−. Cyclic voltammetry and Tafel analysis showed improved electrochemical performance from electrolytes containing NaBr, Na2SO4 and NaH2PO4. Consequently, these chemicals are proposed as potential alternatives in future Zn/Br design work. Electrochemical impedance spectroscopy revealed that the lowering of charge-transfer resistance and diffusion limitation was the contributing reason toward improved performance from those electrolytes. Scanning electron microscopy and X-ray diffraction of zinc electrodeposits obtained during charging showed the type of supporting electrolyte present alters zinc crystallinity. Generation of smaller crystals was related to observations of good half-cell performance during voltammetry. Mossy deposits were linked with higher nucleation overpotentials between zinc plating/de-plating. The well-performing Na2SO4 supporting electrolyte produced mossy deposits, suggesting that contrary to common assumption, such deposition behavior is possibly unrelated to poor zinc-side performance. While the proposed compounds are intended for Zn/Br flow battery applications, they are possibly adaptable to other types of flow batteries utilizing the Zn2+/Zn redox couple.

본문

PDF 본문 자동 추출 실패: [download] not a PDF (Content-Type: text/html, final URL: https://validate.perfdrive.com/fb803c746e9148689b3984a31fccd902/?ssa=b470ac9f-ce1f-4f50-bf21-de75383dcfb3&ssb=02430235337&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.1149%2F2.0151601jes%2Fpdf&ssi=4551b1e4-cnvj-406a-8761-a54495aadf7d&ssk=botmanager_support@radware.com&ssm=758276649048584046828444177610137&ssn=8b55f0534f8305f736a83d44152f2e74255f0365ea35-1dfa-4a77-980c8e&sso=cbb47f5b-51d081f0c929c243b9528f100fefb8c2d3b31c99f1c86569&ssp=32822099081791117875179113524274344&ssq=31228202493284406042510984595001030495233&ssr=MjExLjE4OC41NS4xMTY=&sst=Mozilla/5.0%20(X11;%20Linux%20x86_64)%20AppleWebKit/537.36%20(KHTML,%20like%20Gecko)%20Chrome/126.0%20Safari/537.36%20ai4s-collector/1.0&ssu=&ssv=&ssw=&ssx=eyJyZCI6ImlvcC5vcmciLCJfX3V6bWYiOiI3ZjkwMDAwMzY1ZWEzNS0xZGZhLTRhNzctOWY1Yi01MWQwODFmMGM5MjkxLTE3OTExMTA5ODQ3MjAxMzk0ODA5MC0wMDVjYTFlZTlmYzEzOGVjMGRkNjgyIiwidXpteCI6IjdmYzAwMDg5NGY1NThkLWU0OWQtNDBmOC1iMjViLTE3ZGQ3OTcyMmY3MDEtMTc5M (2026-10-04 23:42:13)

활용가능성

이력 0건

아직 편집 이력이 없습니다. 저장할 때마다 이전 내용이 여기에 백업됩니다.