Statistical modeling of solution combustion synthesis for Ni/A2O3 catalyst in methane decomposition to hydrogen and carbon nanofibers

被引：0

作者：

Kurmashov, Pavel B. ^{[1
]}

Timofeev, Vladimir S. ^{[1
]}

Ukhina, Arina V. ^{[2
]}

Ishchenko, Arcady V. ^{[3
]}

Larina, Tatyana V. ^{[3
]}

Chesalov, Yurii A. ^{[3
]}

Tan, Licheng ^{[4
]}

Chen, Yiwang ^{[4
,5
]}

Maksimovskiy, Evgeny A. ^{[6
]}

Bannov, Alexander G. ^{[1
]}

机构：

[1] Novosibirsk State Tech Univ, K Marx Ave 20, Novosibirsk 630087, Russia

[2] Inst Solid State Chem & Mechanochem SB RAS, Kutateladze Str 18, Novosibirsk 630128, Russia

[3] Boreskov Inst Catalysis SB RAS, Novosibirsk 630090, Russia

[4] Nanchang Univ, Inst Polymers & Energy Chem IPEC, Coll Chem & Chem Engn, 999 Xuefu Ave, Nanchang 330031, Peoples R China

[5] Jiangxi Normal Univ, Minist Educ, Key Lab Fluorine & Silicon Energy Mat & Chem, 99 Ziyang Ave, Nanchang 330022, Peoples R China

[6] Nikolaev Inst Inorgan Chem SB RAS, Akademika Lavrenteva 3, Novosibirsk 630090, Russia

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2024年 / 89卷

基金：

俄罗斯科学基金会;

关键词：

Hydrogen; Catalyst; Methane decomposition; Carbon nanofibers; Solution combustion synthesis; Citric acid; COX-FREE HYDROGEN; NI-BASED CATALYSTS; SOL-GEL SYNTHESIS; FILAMENTOUS CARBON; SUPPORTED NICKEL; PRODUCE HYDROGEN; DIRECT CRACKING; FUELS APPROACH; FREE H-2; NANOTUBES;

D O I：

10.1016/j.ijhydene.2024.09.254

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper is focused on the solution combustion synthesis (SCS) of a set of 90Ni/10Al2O3 2 O 3 (wt. %) catalysts for the production of hydrogen and carbon nanofibers through methane decomposition. A novel approach was employed to optimize the SCS of the catalysts in order to enhance the yields of hydrogen. The obtained catalysts were tested in methane decomposition at 550 degrees C and 1 bar. Transmission electron microscopy, energy-dispersive X-ray spectroscopy, low temperature nitrogen adsorption, and X-ray diffraction were utilized to investigate the catalysts. The SCS process involved programmable heating of a mixture of Ni(NO3)2 & sdot;6H2O 3 ) 2 & sdot; 6H 2 O and Al(NO3)3 & sdot;9H2O 3 ) 3 & sdot; 9H 2 O with citric acid (C6H8O7) 6 H 8 O 7 ) from room temperature to 350-450 degrees C at a heating rates 1-10 degrees C/min and exposure durations of 0-20 min. It was discovered that a high specific yield of hydrogen (17.1 mol/gcat.) cat. ) and carbon nanofibers (171 g/gcat.) cat. ) can be achieved by synthesizing at 450 degrees C using a heating rate of 1 degrees C/min without additional exposure.

引用

页码：1342 / 1353

页数：12