- Title
- Bifunctional hydrogen production and storage on 0D-1D heterojunction of Cd₀.₅Zn₀.₅S@Halloysites
- Creator
- Lin, Sen; Zhang, Yihe; You, Yong; Zeng, Chao; Xiao, Xue; Ma, Tianyi; Huang, Hongwei
- Relation
- Advanced Functional Materials Vol. 29, Issue 39, no. 1903825
- Publisher Link
- http://dx.doi.org/10.1002/adfm.201903825
- Publisher
- Wiley
- Resource Type
- journal article
- Date
- 2019
- Description
- Development of efficient solar‐driven hydrogen (H₂) evolution and H₂ storage materials is challenging. Sulfide nanocatalysts show large potential for H₂ production, but suffer from the drawbacks of inefficient charge separation, serious photocorrosion, and easy agglomeration. Herein, a 0D–1D satellite‐core ethylenediaminetetraacetic acid (EDTA)‐bridged Cd0.5Zn0.5S@halloysite nanotubes tertiary structure is designed via facile in situ assembly, which settles all the above‐mentioned issues and achieves exceptional and stable photocatalytic H₂ evolution and storage. Significantly, EDTA grafted on halloysites as the hole (h⁺) traps steers the photogenerated h⁺ and electrons (e−) from Cd0.5Zn0.5S separately to halloysites and outer surface Pt sites, achieving efficient directional separation between h+ and e− and inhibiting the h⁺‐dominated photocorrosion occurring on Cd0.5Zn0.5S. Benefiting from these advantages, the hierarchy shows an unprecedented photocatalytic H₂ evolution rate of 25.67 mmol g⁻¹ h⁻¹ with a recording apparent quantum efficiency of 32.29% at λ = 420 nm, which is seven‐fold that of Cd0.5Zn0.5S. Meanwhile, an H₂ adsorption capacity of 0.042% is achieved with the room temperature of 25°C and pressure of 2.65 MPa. This work provides a new perspective into designing hierarchical structure for H₂ evolution, and proposes an integration concept for H₂ evolution and storage.
- Subject
- charge separation; halloysite; hydrogen evolution; hydrogen storage; nanotubes; SDG 7; Sustainable Development Goals
- Identifier
- http://hdl.handle.net/1959.13/1417379
- Identifier
- uon:37201
- Identifier
- ISSN:1616-301X
- Rights
- This is the peer reviewed version of the following article: Lin, S., Zhang, Y. & You, Y. et al. (2019) Bifunctional hydrogen production and storage on 0D-1D heterojunction of Cd₀.₅n₀.₅S@Halloysites, Advanced Functional Materials, 29 (39) 1903825 which has been published in final form at: http://dx.doi.org/ 10.1002/adfm.201903825. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
- Language
- eng
- Full Text
- Reviewed
- Hits: 3910
- Visitors: 4086
- Downloads: 207
Collections
Goal 7: Ensure access to affordable, reliable, sustainable and modern energy
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | ATTACHMENT02 | Author final version | 1 MB | Adobe Acrobat PDF | View Details Download |