Ni catalysts for dry methane reforming prepared by A-site exsolution on mesoporous defect spinel magnesium aluminate

被引：41

作者：

Cho, Eunkyung ^{[1
]}

Lee, Young-Hee ^{[2
]}

Kim, Hyunjoung ^{[2
]}

Jang, Eun Jeong ^{[3
]}

Kwak, Ja Hun ^{[3
]}

Lee, Kyubock ^{[2
]}

Ko, Chang Hyun ^{[1
]}

Yoon, Wang Lai ^{[4
]}

机构：

[1] Chonnam Natl Univ, Sch Chem Engn, Gwangju 61186, South Korea

[2] Chungnam Natl Univ, Grad Sch Energy Sci & Technol, Daejeon 34134, South Korea

[3] Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Ulsan 44919, South Korea

[4] Korea Inst Energy Res, Hydrogen Energy Res Ctr, Daejeon 34129, South Korea

来源：

APPLIED CATALYSIS A-GENERAL | 2020年 / 602卷

基金：

新加坡国家研究基金会;

关键词：

Mesoporous magnesium aluminate; Defect spinel structure; Dry methane reforming; Ni catalyst; A-site exsolution; NANOCRYSTALLINE MGAL2O4 SPINEL; CO2; NICKEL; PERFORMANCE; PEROVSKITE; REDUCTION; PARTICLES; STABILITY; ZEOLITES; SUPPORT;

D O I：

10.1016/j.apcata.2020.117694

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：

In dry methane reforming, the selection of a suitable support is critical due to coke formation and metal particle sintering. We prepared two types of mesoporous defect spinel magnesium aluminate support, namely DS09, with a Mg/Al molar ratio (Mg/Al) of 0.1, and DS19 with Mg/Al = 0.24. Each support has a high surface area, large mesopore volume, and a phase between its defect spinel (Mg0.388Al2.408O4) and spinel (MgAl2O4) structures. Magnesium aluminate with a Mg/Al of 0.5 (MG30), which has a low surface area and is devoid of mesopores, was used as the reference support. Ni was supported on DS09 (Ni-DS09) and DS19 (Ni-DS19) by A-site ex-solution. These catalysts display significant advantages over Ni-supported MG30 (Ni-MG30); Ni-DS19 exhibited a higher coke resistance than Ni-DS09, due to its lower acidity, while DS19, which contains a defect spinel structure, optimized acidity, and well-developed mesopores, was the best support for the DMR.

引用

页数：9

共 39 条

[1] Mesoporous nanocrystalline MgAl2O4 spinel and its applications as support for Ni catalyst in dry reforming [J].

Alvar, E. Navaei ;

Rezaei, M. .

SCRIPTA MATERIALIA, 2009, 61 (02) :212-215

[2] Synthesis of mesoporous nanocrystalline MgAl2O4 spinel via surfactant assisted precipitation route [J].

Alvar, Esmaeil Navaei ;

Rezaei, Mehran ;

Alvar, Hassan Navaei .

POWDER TECHNOLOGY, 2010, 198 (02) :275-278

[3] Activity and stability enhancement of Ni-MCM-41 catalysts by Rh incorporation for hydrogen from dry reforming of methane [J].

Arbag, Huseyin ;

Yasyerli, Sena ;

Yasyerli, Nail ;

Dogu, Gulsen .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2010, 35 (06) :2296-2304

[4] Highly active and stable Ni-based bimodal pore catalyst for dry reforming of methane [J].

Bao, Zhenghong ;

Lu, Yongwu ;

Han, Jun ;

Li, Yebo ;

Yu, Fei .

APPLIED CATALYSIS A-GENERAL, 2015, 491 :116-126

[5] CATION AND VACANCY DISTRIBUTION IN A SYNTHETIC DEFECT SPINEL [J].

BASSO, R ;

CARBONIN, S ;

DELLAGIUSTA, A .

ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1991, 194 (1-2) :111-119

[6] CO2 reforming of methane over LaNiO3 as precursor material [J].

Batiot-Dupeyrat, C ;

Gallego, GAS ;

Mondragon, F ;

Barrault, J ;

Tatibouët, JM .

CATALYSIS TODAY, 2005, 107-08 :474-480

[7] A Review on Bimetallic Nickel-Based Catalysts for CO2 Reforming of Methane [J].

Bian, Zhoufeng ;

Das, Sonali ;

Wai, Ming Hui ;

Hongmanorom, Plaifa ;

Kawi, Sibudjing .

CHEMPHYSCHEM, 2017, 18 (22) :3117-3134

[8] MCM-41 supported PdNi catalysts for dry reforming of methane [J].

Damyanova, S. ;

Pawelec, B. ;

Arishtirova, K. ;

Fierro, J. L. G. ;

Sener, C. ;

Dogu, T. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2009, 92 (3-4) :250-261

[9] Nanostructured Ni-containing spinel oxides for the dry reforming of methane: Effect of the presence of cobalt and nickel on the deactivation behaviour of catalysts [J].

de Sousa, Francisco F. ;

de Sousa, Helvio S. A. ;

Oliveira, Alcemira C. ;

Junior, Manoel C. C. ;

Ayala, Alejandro P. ;

Barros, Eduardo B. ;

Viana, Bartolomeu C. ;

Filho, Josue M. ;

Oliveira, Alcineia C. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (04) :3201-3212

[10]

Fisher F., 1928, Brennst.-Chem, P9

← 1 2 3 4 →