# Penternary Wurtzitic Nitrides Li<sub>1–<i>x</i></sub>Zn<sub>  <i>x</i></sub>Ge<sub>2–<i>x</i></sub>Ga<sub>  <i>x</i></sub>N<sub>3</sub>: Powder Synthesis, Crystal Structure, and Potentiality as a Solar-Active Photocatalyst

https://mdr.nims.go.jp/datasets/df4cc1a6-c1e7-4bca-aaaf-998dbec53367

## File

- [manuscript_rev_b.pdf](https://mdr.nims.go.jp/filesets/40e0b1a6-9d6d-4e81-896f-7dc2ff78f386/download) ([Detail](https://mdr.nims.go.jp/filesets/40e0b1a6-9d6d-4e81-896f-7dc2ff78f386.md))

## Id

df4cc1a6-c1e7-4bca-aaaf-998dbec53367

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-07-01T07:56:13.017349Z

## Updated at

2025-06-13T23:30:31.464395Z

## Published at

2025-06-13T23:22:20.432212Z

## Doi

https://doi.org/10.48505/nims.4566

## First published url

https://doi.org/10.1021/acs.inorgchem.4c01294

## Date published

2024-07-01

## Recorded date published

2024-7-1

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: 'Penternary Wurtzitic Nitrides Li<sub>1–<i>x</i></sub>Zn<sub><i>x</i></sub>Ge<sub>2–<i>x</i></sub>Ga<sub><i>x</i></sub>N<sub>3</sub>:
    Powder Synthesis, Crystal Structure, and Potentiality as a Solar-Active Photocatalyst'
  title_type: original
  lang: en

## Description

- description: "We have developed a new penternary wurtzitic nitride system Li1-xZnxGe2-xGaxN3
    (0 < x < 1) by hybridizing LiGe2N3 and ZnGeGaN3. Fairly stoichiometric fine powder
    samples were synthesized by the reduction-nitridation process at 900 degree C.
    While the end member LiGe2N3 possessed a relatively large band gap of 4.16 eV,
    the band gap of the developed penternary system varied in a broad range of 3.81-3.10
    eV, showing promising responsivity to the solar spectrum. The crystal structure
    of LiGe2N3 was precisely determined by time-of-flight neutron powder diffraction
    for the first time, revealing the complete ordering of Li and Ge in the Cmc21
    structure. The structural evolution from the completely ordered LiGe2N3 to the
    fully disordered ZnGeGaN3 was quantitatively analyzed by Rietveld refinement based
    on a partially disordered Cmc21 model, and the obtained results were also supported
    by 71Ga solid-state NMR spectroscopy.\r\nThe synthesized Li1-xZnxGe2-xGaxN3 powder
    samples exhibited photocatalytic activities for the water reduction and oxidation
    reactions under solar-light irradiation, with the H2 evolution rate of 0.3-59.0
    micro mol/h and the O2 evolution rate of 3.1-296.2 micro mol/h, depending on the
    composition. Stable solar hydrogen generation of up to 48 h was demonstrated by
    the x = 0.80 sample, with the total amount of H2 evolved over 1.6 mmol and the
    external quantum efficiency of 2.1%."
  description_type: abstract
  lang: und

## Creator

- name: Takayuki Suehiro
  role: author
  orcid: https://orcid.org/0000-0001-9444-9738
- name: Masataka Tansho
  role: author
  orcid: https://orcid.org/0000-0001-7986-3199
- name: Akio Iwanade
  role: author
  orcid: https://orcid.org/0000-0002-9291-9561
- name: Toru Ishigaki
  role: author
- name: Naoki Ohashi
  role: author
  orcid: https://orcid.org/0000-0002-4011-0031

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: Nitride
  schema: not_defined
- subject: Photocatalyst
  schema: not_defined
- subject: Photocatalysis
  schema: not_defined
- subject: Hydrogen
  schema: not_defined
- subject: Wurtzite
  schema: not_defined

## Rights

- description: This document is the Accepted Manuscript version of a Published Work
    that appeared in final form in Inorganic Chemistry, copyright © 2024 American
    Chemical Society after peer review and technical editing by the publisher. To
    access the final edited and published work see https://doi.org/10.1021/acs.inorgchem.4c01294
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-06-14
end_date: 2025-06-14

## Journal

- title: Inorganic Chemistry
  issn: '00201669'
  volume: '63'
  issue: '26'

## Conference



## Related item



## Funding

- identifier: 21K04913
  funder_name: Japan Society for the Promotion of Science

## 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: 40e0b1a6-9d6d-4e81-896f-7dc2ff78f386
  filename: manuscript_rev_b.pdf
  content_type: application/pdf
  size: 3893141
  md5: ed9ee5bea85573997c8553d0e7675e3f

## Thumbnail

fileset_id: 40e0b1a6-9d6d-4e81-896f-7dc2ff78f386
filename: manuscript_rev_b.pdf