Effect of calcination on the structure of Ni/MgO catalyst: An x-ray diffraction study

被引：71

作者：

Arena, F

Frusteri, F

Parmaliana, A

Plyasova, L

Shmakov, AN

机构：

[1] CNR,IST TAE,I-98126 ST LUCIA,MESSINA,ITALY

[2] BORESKOV INST CATALYSIS,NOVOSIBIRSK 630090,RUSSIA

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1996年 / 92卷 / 03期

关键词：

D O I：

10.1039/ft9969200469

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：

The progressive diffusion of Ni2+ ions into the MgO matrix, with the consequent formation of an NixMg(1-x)O solid solution, occurring during the air calcination of a 19% Ni/MgO catalyst in the range 400-1000 degrees C, has been monitored by X-ray diffraction (XRD) measurements using monochromatized non-doublet synchrotron radiation. A solid-state reaction model accounting for the NiO-MgO interaction in supported and mechanically mixed systems is discussed.

引用

收藏

页码：469 / 471

页数：3

相关论文

共 13 条

[1] MAGNESIA-SUPPORTED NICKEL-CATALYSTS .1. FACTORS AFFECTING THE STRUCTURE AND MORPHOLOGICAL PROPERTIES [J].

ARENA, F ;

HORRELL, BA ;

COCKE, DL ;

PARMALIANA, A ;

GIORDANO, N .

JOURNAL OF CATALYSIS, 1991, 132 (01) :58-67

[2] INFLUENCE OF THE CALCINATION TREATMENT ON THE SURFACE CHEMICAL-PROPERTIES OF NI/MGO CATALYST - A CO2 TEMPERATURE PROGRAMMED DESORPTION APPROACH [J].

ARENA, F ;

PARMALIANA, A ;

MONDELLO, N ;

FRUSTERI, F ;

GIORDANO, N .

LANGMUIR, 1991, 7 (08) :1555-1557

[3]

ARENA F, 1990, CATAL LETT, V6, P131

[4] NICKEL-CATALYSTS FOR STEAM REFORMING OF HYDROCARBONS - PHASE-COMPOSITION AND RESISTANCE TO COKING [J].

BOROWIECKI, T .

APPLIED CATALYSIS, 1984, 10 (03) :273-289

[5]

CHEMBARD G, 1971, C R ACAD SCI C, V272, P226

[6]

KRIEGER TA, 1988, IAN SSSR KH, V19, P76

[7] PROBLEMS INVOLVED IN THE REDUCIBILITY OF THE NIO-MGO SYSTEM AS EVIDENCED BY X-RAY-DIFFRACTION, ELECTRON-PARAMAGNETIC RESONANCE, ELECTRON-SPECTROSCOPY FOR CHEMICAL-ANALYSIS AND ADSORPTION TECHNIQUES [J].

NARAYANAN, S ;

SREEKANTH, G .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1993, 89 (06) :943-949

[8] MAGNESIA-SUPPORTED NICKEL-CATALYSTS .2. SURFACE-PROPERTIES AND REACTIVITY IN METHANE STEAM REFORMING [J].

PARMALIANA, A ;

ARENA, F ;

FRUSTERI, F ;

COLUCCIA, S ;

MARCHESE, L ;

MARTRA, G ;

CHUVILIN, AL .

JOURNAL OF CATALYSIS, 1993, 141 (01) :34-47

[9] TEMPERATURE-PROGRAMMED REDUCTION STUDY OF NIO-MGO INTERACTIONS IN MAGNESIA-SUPPORTED NI CATALYSTS AND NIO-MGO PHYSICAL MIXTURE [J].

PARMALIANA, A ;

ARENA, F ;

FRUSTERI, F ;

GIORDANO, N .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1990, 86 (14) :2663-2669

[10]

SHMAKOV AN, 1993, MATER SCI FORUM, V133, P361