# A high voltage aqueous proton battery using an optimized operation of a MoO3 positive electrode

https://mdr.nims.go.jp/datasets/4541ab59-91b5-41e2-bd3b-b62fe21cd38c

## File

- [d2ta08581j.pdf](https://mdr.nims.go.jp/filesets/0769e528-cf7d-4250-bd44-bf540032209e/download) ([Detail](https://mdr.nims.go.jp/filesets/0769e528-cf7d-4250-bd44-bf540032209e.md))
- [d2ta08581j1.pdf](https://mdr.nims.go.jp/filesets/16a87ca5-037d-43fa-815f-cdfc30e71d41/download) ([Detail](https://mdr.nims.go.jp/filesets/16a87ca5-037d-43fa-815f-cdfc30e71d41.md))

## Id

4541ab59-91b5-41e2-bd3b-b62fe21cd38c

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-02-02T05:06:30.696126Z

## Updated at

2024-01-05T13:11:59.378928Z

## Published at

2023-02-03T02:44:09.146300Z

## Doi



## First published url

https://doi.org/10.1039/D2TA08581J

## Date published

2023-01-06

## Recorded date published

2023-1-31

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: A high voltage aqueous proton battery using an optimized operation of a MoO3
    positive electrode
  title_type: original
  lang: en

## Description

- description: Aqueous proton batteries have attracted increasing attention owing
    to their potential of high safety standard, high rate capability, and long cyclability.
    While some inorganic negative electrode materials for proton batteries have recently
    been found, inorganic positive electrode materials have rarely been reported.
    In this work, we investigate the proton insertion–extraction mechanism of MoO3
    using operando X-ray diffraction and density functional theory calculation to
    optimize its operating conditions as a positive electrode. It is found that the
    phase transition between MoO3 and phase-I HxMoO3 can reversibly be utilized by
    preventing irreversible phase transition from phase-I to phase-III involving the
    change of proton accommodation from the intralayer to interlayer sites. A MoO3
    electrode using the phase transition between MoO3 and phase-I shows an average
    reduction potential of 0.44 V vs. SHE with a maximum reversible capacity of 100
    mA h g−1. A MoO3j50 wt% H2SO4 aq.jHxMoO3 full-cell exhibits a maximum discharge
    capacity of 73 mA h g−1 and maintains nominal discharge voltage above 0.47 V,
    which is the highest voltage among aqueous proton batteries composed of insertion-type
    oxide active materials.
  description_type: abstract
  lang: eng

## Creator

- name: Atsunori Ikezawa
  role: author
  orcid: https://orcid.org/0000-0002-8857-7159
  organization: Tokyo Institute of Technology
- name: KOYAMA, Yukinori
  role: author
  orcid: https://orcid.org/0000-0002-7090-4430
  organization: National Institute for Materials Science
  department: Research and Services Division of Materials Data and Integrated System/Device
    Materials Informatics Group
  ror: https://ror.org/026v1ze26
- name: Tadaaki Nishizawa
  role: author
  organization: Tokyo Institute of Technology
- name: Hajime Arai
  role: author
  orcid: https://orcid.org/0000-0001-6695-637X
  organization: Tokyo Institute of Technology

## Contact agent



## Publisher



## Managing organization



## Keyword

- subject: proton battery
  schema: not_defined
- subject: molybdenum trioxide
  schema: not_defined
- subject: operando x-ray diffraction
  schema: not_defined
- subject: density functional theory
  schema: not_defined

## Rights

- description: Creative Commons BY Attribution 4.0 International
  identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Journal of Materials Chemistry A
  issn: '20507488'
  volume: '11'
  issue: '5'
  start_page: 2360
  end_page: 2366

## Conference



## Related item



## Funding



## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: '0769e528-cf7d-4250-bd44-bf540032209e'
  filename: d2ta08581j.pdf
  content_type: application/pdf
  size: 2900780
  md5: c839a576d133476ead13d11211d41d55
- id: 16a87ca5-037d-43fa-815f-cdfc30e71d41
  filename: d2ta08581j1.pdf
  content_type: application/pdf
  size: 4135851
  md5: 9f191ad88cd9232d656092c62241043d

## Thumbnail

fileset_id: '0769e528-cf7d-4250-bd44-bf540032209e'
filename: d2ta08581j.pdf