Efficient dry reforming of methane with carbon dioxide reaction on Ni@Y2O3 nanofibers anti-carbon deposition catalyst prepared by electrospinning-hydrothermal method. (13th November 2020)

• Record Type: Journal Article
• Authors: Xie, Yongshuai; Xie, Fengqiong; Wang, Lin; Peng, Ying; Ma, Dehua; Zhu, Luyi; Zhou, Guilin; Wang, Xinqiang; Zhang, Guanghui
• Is Part Of: International journal of hydrogen energy. Volume 45:Number 56(2020)
• Page Start: 31494
• Page End: 31506
• Publication Date: 2020-11-13
• Subjects: Dry reforming of methane -- Carbon dioxide -- Catalyst -- Ni -- Y2O3 nanofibers; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2020.08.202
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Dry reforming of CH4 with CO2 is an effective way to convert these two greenhouse gases into useful industrial feedstock. Here, we designed and developed Ni@Y2 O3 nanofibers catalyst by pyrolyzing sheet-like Ni2 (CO3 ) (OH)2 grown in situ on the surface of Y2 O3 nanofibers. Y2 O3 nanofibers support can not only promote the contact of the reaction gas with the catalyst due to its self-supporting effect, but also improve the ability to capture CO2 because of its basic oxide properties. Meanwhile, the oxygen exchange between the catalyst and CO2 could promote the oxidation of carbon deposits, and further improve activity and stability of the catalyst. Besides, the catalyst obtained by low-temperature pyrolysis could maintain the sheet-structure of nickel on the surface of support, which is conducive to improve its catalytic activity, stability, and resistance to carbon deposition. This work has a positive effect on improving the design of catalysts as well as producing industrial chemicals and reducing the environmental pollution. Graphical abstract: Image 1 Highlights: Ni@Y2 O3 NFs catalysts were prepared by electrospinning-hydrothermal method. Self-supporting Y2 O3 NFs increase the contact between feed gases and catalyst. The interaction between Y2 O3 and CO2 contributes to CO2 capture and activation. The conversion rates of CH4 and CO2 at 600°C was 73.58% and 39.31%, respectively.