Surface Properties and Active Sites of Nitrided Mo/Al2O3 Catalysts for the Hydrodenitrogenation of Carbazole

被引：7

作者：

Ishii, Hiromi ^{[1
]}

Kiyoshi, Masaru ^{[1
]}

Nagai, Masatoshi ^{[1
]}

机构：

[1] Tokyo Univ Agr & Technol, Grad Sch Bioapplicat & Syst Engn, Koganei, Tokyo 1848588, Japan

来源：

TOPICS IN CATALYSIS | 2009年 / 52卷 / 11期

关键词：

Active sites; Carbazole; Characterization; Hydrodenitrogenation; Molybdenum nitride; SUPPORTED MOLYBDENUM NITRIDE; FT-IR; THIOPHENE HYDRODESULFURIZATION; TUNGSTEN NITRIDE; METAL CARBIDES; ALUMINA; MO; DIBENZOTHIOPHENE; GAMMA-MO2N; AREA;

D O I：

10.1007/s11244-009-9293-2

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The active sites for the hydrodenitrogenation of carbazole for a series of low loading nitrided Mo/Al2O3 catalysts have been investigated by a combination of CO adsorption, pyridine adsorption, temperature-programmed surface reaction with hydrogen and fractal analysis. Accordingly, the active sites for different stages of reaction have been determined. It is proposed that carbazole adsorbs on the edge of molybdenum nitride crystallites where it is hydrogenated to perhydrocarbazole which desorbs, migrating to nitrogen deficient nitrogen planes where it undergoes C-N hydrogenolysis.

引用

页码：1525 / 1534

页数：10

共 90 条

[1]

[Anonymous], J JPN PET I

[2] Preparation and characterization of a novel class of catalysts: Ultradispersed molybdenum oxynitrides supported on NaEMT and HEMT zeolite [J].

Becue, T ;

Manoli, JM ;

Potvin, C ;

DjegaMariadassou, G ;

Delamar, M .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (33) :6429-6435

[3] FT-IR STUDY OF THE SURFACE-PROPERTIES OF THE SPINELS NIAL2O4 AND COAL2O4 IN RELATION TO THOSE OF TRANSITIONAL ALUMINAS [J].

BUSCA, G ;

LORENZELLI, V ;

ESCRIBANO, VS ;

GUIDETTI, R .

JOURNAL OF CATALYSIS, 1991, 131 (01) :167-177

[4] Mechanism of carbon-nitrogen bond scission on unsupported transition metal sulfides [J].

Cattenot, M ;

Portefaix, JL ;

Afonso, J ;

Breysse, M ;

Lacroix, M ;

Perot, G .

JOURNAL OF CATALYSIS, 1998, 173 (02) :366-373

[5] Carbide and nitride overlayers on early transition metal surfaces: Preparation, characterization, and reactivities [J].

Chen, JGG .

CHEMICAL REVIEWS, 1996, 96 (04) :1477-1498

[6] SYNTHESIS AND CHARACTERIZATION OF MOLYBDENUM NITRIDE HYDRODENITROGENATION CATALYSTS [J].

CHOI, JG ;

BRENNER, JR ;

COLLING, CW ;

DEMCZYK, BG ;

DUNNING, JL ;

THOMPSON, LT .

CATALYSIS TODAY, 1992, 15 (02) :201-222

[7] One-step synthesis of dispersed bimetallic carbides and nitrides from transition metals hexamethylenetetramine complexes [J].

Chouzier, Sandra ;

Afanasiev, Pavel ;

Vrinat, Michel ;

Cseri, Tivadar ;

Roy-Auberger, Magalie .

JOURNAL OF SOLID STATE CHEMISTRY, 2006, 179 (11) :3314-3323

[8] NiMoNx/γ-Al2O3 catalyst for HDN of pyridine [J].

Chu, YJ ;

Wei, ZB ;

Yang, SW ;

Li, C ;

Xin, Q ;

Min, EZ .

APPLIED CATALYSIS A-GENERAL, 1999, 176 (01) :17-26

[9] Molybdenum nitride catalysts .2. H-2 temperature programmed reduction and NH3 temperature programmed desorption [J].

Colling, CW ;

Choi, JG ;

Thompson, LT .

JOURNAL OF CATALYSIS, 1996, 160 (01) :35-42

[10] THE STRUCTURE AND FUNCTION OF SUPPORTED MOLYBDENUM NITRIDE HYDRODENITROGENATION CATALYSTS [J].

COLLING, CW ;

THOMPSON, LT .

JOURNAL OF CATALYSIS, 1994, 146 (01) :193-203

← 1 2 3 4 5 6 7 8 9 →