An interesting charge accumulation process of Bi12O15Cl6

In this work, the effect of zigzag passageway on electrochemical properties of Bi12O15Cl6 is investigated mainly. Although Bi12O15Cl6 has a larger particle size (~5μm) than Bi3O4Cl (~1μm), Bi12O15Cl6 has a higher discharge capacitance (10,300μF·cm−2) than the latter (9800μF·cm−2) at 2mA·cm−2. Moreov...

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Bibliographic Details
Published inJournal of electroanalytical chemistry (Lausanne, Switzerland) Vol. 846; p. 113169
Main Authors Gu, Wenhao, Teng, Fei, Chu, Yaozhu, Zhang, An, Abideen, Zain Ul
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.08.2019
Elsevier Science Ltd
Subjects
Accumulation
Bi12O15Cl6
Charge accumulation
Coulomb efficiency
Electrochemical analysis
Passageways
Zigzag passageway
Zigzag passageway
Bi12O15Cl6
Charge accumulation
Coulomb efficiency
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Summary:In this work, the effect of zigzag passageway on electrochemical properties of Bi12O15Cl6 is investigated mainly. Although Bi12O15Cl6 has a larger particle size (~5μm) than Bi3O4Cl (~1μm), Bi12O15Cl6 has a higher discharge capacitance (10,300μF·cm−2) than the latter (9800μF·cm−2) at 2mA·cm−2. Moreover, the Coulomb efficiency only reaches 82% at the 1st cycle for Bi12O15Cl6, but rises to 110% after 400cycles. It is found that for Bi3O4Cl, the expedite ion passageway favors for getting in and out of ion; for Bi12O15Cl6, the zigzag passageway leads to a charge accumulation. This work favors to understand the electrochemical process well. Graphic abstract [Display omitted] •The Coulomb efficiency of Bi12O15Cl6 electrode rises to 110% after cycles.•Zigzag passageway of Bi12O15Cl6 leads to the charge accumulation.•This work favors to well understand the electrochemical energy storage mechanism.
ISSN:1572-6657
1873-2569
DOI:10.1016/j.jelechem.2019.05.051