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- Title
Amorphous Nickel Nanofilms for Efficient Hydrogen Generation from ammonia borane.
- Authors
Chen, Yumei; Li, Mingbin; Guan, Shuyan; Li, Qing; Peng, Qiuming; Han, Shumin; Liu, Baozhong
- Abstract
Clean and sustainable hydrogen production through liquid hydrogen storage material requires highly active and stable earth‐abundant non‐noble metal to replace expensive and rare noble metals. Herein, nickel nanofilms (Ni/NiO‐NFs) were prepared by the ionic liquid/water interface route. The cationic carbon chain length of the ionic liquid affects the phase composition of the nickel nanofilm, and the ionic liquid with [OMIm][PF6] as the anion has good thermal stability during the synthesis process. The efficiency of Ni/NiO‐NFs catalysts was tested by comparative kinetic analysis of the AB hydrolysis for hydrogen production. The as‐prepared Ni/NiO‐NFs catalyst exhibits excellent hydrogen generation performances, including a hydrogen production rate (2917 ml min−1 gNi−1), and a low activation energy (48.1 kJ/mol). The transition of nickel oxide to metallic nickel and the destruction of the catalyst structure is responsible for the decreased durability. This work highlights the significance of amorphous nanofilms catalysts via the ionic interface method on the regulation of activity for AB hydrolysis.
- Subjects
NICKEL oxides; INTERSTITIAL hydrogen generation; NANOFILMS; PRECIOUS metals; NONFERROUS metals; METALLIC oxides
- Publication
European Journal of Inorganic Chemistry, 2024, Vol 27, Issue 8, p1
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.202300677