# Perovskite CoSn(OH)<sub>6</sub> nanocubes with tuned d-band states towards enhanced oxygen evolution reactions

https://mdr.nims.go.jp/datasets/858c8e1b-3a45-46dd-9e2a-96c5a4342ee7

## File

- [ZhangNing_Manuscript_Accepted.pdf](https://mdr.nims.go.jp/filesets/53779459-bc35-4a1a-a46b-56ed9f34bb71/download) ([Detail](https://mdr.nims.go.jp/filesets/53779459-bc35-4a1a-a46b-56ed9f34bb71.md))

## Id

858c8e1b-3a45-46dd-9e2a-96c5a4342ee7

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-06-12T06:04:39.066237Z

## Updated at

2025-05-01T23:30:18.878559Z

## Published at

2025-05-01T23:19:54.212618Z

## Doi

https://doi.org/10.48505/nims.4535

## First published url

https://doi.org/10.1039/d4nr00975d

## Date published

2024-05-02

## Recorded date published

2024-6-6

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Perovskite CoSn(OH)<sub>6</sub> nanocubes with tuned d-band states towards
    enhanced oxygen evolution reactions
  title_type: original
  lang: en

## Description

- description: The CoSn(OH)6 perovskite hydroxide is a structure stable and inexpensive
    electrocatalyst for the oxygen evolution reaction (OER). However, the OER activity
    of CoSn(OH)6 is still unfavorable due to its limited active sites. In this work,
    an Fe3+ doping strategy is used to optimize the d-band state of the CoSn(OH)6
    perovskite hydroxide. The CoSn(OH)6 catalyst with slightly Fe3+ doped nanocubes
    is synthesized by a facile hydrothermal method. Structure characterization shows
    that Fe3+ ions are incorporated into the crystal structure of CoSn(OH)6. Owing
    to the regulation of the electronic structure, CoSn(OH)6-Fe1.8% exhibits an OER
    overpotential of 289 mV at a current density of 10 mA cm−2 in OER electrochemical
    tests. In situ Raman spectroscopy shows that no obvious re-construction occurred
    during the OER for both CoSn(OH)6 and CoSn(OH)6-Fe1.8%. DFT calculations show
    that the introduction of Fe3+ into CoSn(OH)6 can shift the d-band center to a
    relatively high position, thus promoting the OER intermediates’ adsorption ability.
    Further DFT calculations suggest that incorporation of an appropriate amount of
    Fe3+ into CoSn(OH)6 significantly reduces the rate-determining Gibbs free energy
    during the OER. This work offers valuable insights into tuning the d-band center
    of perovskite hydroxide materials for efficient OER applications.
  description_type: abstract
  lang: und

## Creator

- name: Mingwei Sun
  role: author
- name: Baopeng Yang
  role: author
- name: Jiaxing Yan
  role: author
- name: Yulong Zhou
  role: author
- name: Zhencong Huang
  role: author
- name: Ning Zhang
  role: author
  orcid: https://orcid.org/0000-0002-3033-0276
- name: Rong Mo
  role: author
- name: Renzhi Ma
  role: author
  orcid: https://orcid.org/0000-0001-7126-2006

## Contact agent



## Publisher

organization: Royal Society of Chemistry (RSC)

## Managing organization



## Keyword

- subject: Metal hydroxide
  schema: not_defined
- subject: Electrocatalysis
  schema: not_defined
- subject: Oxygen evolution reaction
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-05-02
end_date: 2025-05-02

## Journal

- title: Nanoscale
  issn: '20403364'
  volume: '16'
  issue: '22'
  start_page: 10618
  end_page: 10627

## Conference



## Related item



## Funding

- funder_name: Central South University
- identifier: '22072183'
  funder_name: National Natural Science Foundation of China
- identifier: 2022JJ30690
  funder_name: Natural Science Foundation of Hunan Province
- identifier: 2024JJ5378
  funder_name: Natural Science Foundation of Hunan Province

## Instrument



## Instrument operator



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## 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



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## Fileset

- id: 53779459-bc35-4a1a-a46b-56ed9f34bb71
  filename: ZhangNing_Manuscript_Accepted.pdf
  content_type: application/pdf
  size: 2483901
  md5: 38ee995f294c9b22fa92df2b4ba4f2a0

## Thumbnail

fileset_id: 53779459-bc35-4a1a-a46b-56ed9f34bb71
filename: ZhangNing_Manuscript_Accepted.pdf