Title:
FLUOROCARBON/PALLADIUM/MAGNESIUM-SCANDIUM HYDROGEN-CHROMIC FILM, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/228448
Kind Code:
A1
Abstract:
Disclosed are a fluorocarbon/palladium/magnesium-scandium hydrogen-chromic film and a preparation method therefor. The film comprises, sequentially arranged on a substrate, a magnesium-scandium composite film layer, a palladium catalytic layer, and a fluorocarbon film layer. The preparation method comprises: growing a magnesium-scandium composite film layer on a substrate, then growing a palladium catalytic layer in situ on the magnesium-scandium layer, and finally depositing a fluorocarbon film layer on Pd. In the present invention, the catalytic effect of palladium is utilized, so as to, during hydrogen absorption and dehydrogenation stages, promote reversible conversion between hydrogen and hydrogen atoms, add a composite scandium element to accelerate diffusion of hydrogen atoms in a magnesium matrix, and accelerate hydride formation and decomposition, thereby allowing the film to repeatedly and rapidly switch between a reflective state and a transparent state, and also improving the hydrogen absorption cycle durability of the film layers. The entire reaction process can be implemented at room temperature. The present dimming film has a short hydrogen absorption response, a short dehydrogenation recovery time, a good cycle performance, a simple process, and has an important application prospect in the field of hydrogen sensing.
Inventors:
CHEN JUAN (CN)
FANG HAOLAN (CN)
PENG LIMING (CN)
LIU JUNJIA (CN)
SHEN WEI (CN)
WANG TINGYAN (CN)
CHEN YAN (CN)
DING WENJIANG (CN)
FANG HAOLAN (CN)
PENG LIMING (CN)
LIU JUNJIA (CN)
SHEN WEI (CN)
WANG TINGYAN (CN)
CHEN YAN (CN)
DING WENJIANG (CN)
Application Number:
PCT/CN2022/089434
Publication Date:
November 03, 2022
Filing Date:
April 27, 2022
Export Citation:
Assignee:
UNIV SHANGHAI JIAOTONG (CN)
International Classes:
C23C14/35; C23C14/16; C23C14/18; C23C14/20; C23C16/30; C23C16/50; C23C28/00
Foreign References:
| CN113215544A | 2021-08-06 | |||
| CN112596279A | 2021-04-02 | |||
| CN109136841A | 2019-01-04 | |||
| CN101164185A | 2008-04-16 | |||
| CN104342617A | 2015-02-11 |
Other References:
NIESSEN, R.A.H. NOTTEN, P.H.L.: "Hydrogen storage in thin film magnesium-scandium alloys", JOURNAL OF ALLOYS AND COMPOUNDS, ELSEVIER SEQUOIA, LAUSANNE., CH, vol. 404-406, 8 December 2005 (2005-12-08), CH , pages 457 - 460, XP005180202, ISSN: 0925-8388, DOI: 10.1016/j.jallcom.2004.09.096
Attorney, Agent or Firm:
DUAN&DUAN LAW FIRM (CN)
Download PDF: