The 11C-radioisotopic study of methanol conversion on V-MCM-41: The influence of methyl iodide on the transformation

被引：2

作者：

Sarkadi-Priboczki, E. ^{[1
]}

Gucbilmez, Y. ^{[2
]}

Solmaz, A. ^{[3
]}

Balci, S. ^{[3
]}

Szelecsenyi, F. ^{[1
]}

Kovacs, Z. ^{[1
]}

Dogu, T. ^{[4
]}

机构：

[1] Hungarian Acad Sci, Inst Nucl Res, H-4001 Debrecen, Hungary

[2] Anadolu Univ, TR-26480 Eskisehir, Turkey

[3] Gazi Univ, TR-06570 Ankara, Turkey

[4] Middle E Tech Univ, TR-06531 Ankara, Turkey

来源：

CATALYSIS TODAY | 2009年 / 142卷 / 3-4期

基金：

匈牙利科学研究基金会;

关键词：

C-11-methanol; Methyl iodide; Radiolabeling; V-MCM-41; Methylal; Radio/FID-GC; C-11-LABELED METHANOL; VANADIA-SILICA; OXIDATION; CATALYSTS; MCM-41; SITES; FORMALDEHYDE; ADSORPTION; MECHANISM; H-ZSM-5;

D O I：

10.1016/j.cattod.2008.10.021

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The methanol conversion and a feasible methanol co-reaction with methyl iodide were studied on a vanadium incorporated MCM-41 type (V-MCM-41) mesoporous catalyst. which was prepared by a direct hydrothermal synthesis method. Adsorption/desorption as well as conversion derivates of radioactive methanol were easily followed by radioactivity detectors on V-MCM-41. The transformation and coreaction products were analyzed by a gas chromatograph equipped with Radio/FID detectors. The radiodetector was applied to distinguish C-11-derivates from the non-radioactive methyl iodide and its derivates. The radio-labeling method proved methanol transformation to methylal and, in the presence of methyl iodide, decided the roles of methyl group and iodide of methyl iodide in newly synthesized methyl iodide formation in the absence of oxygen gas. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：202 / 206

页数：5

共 8 条

[1] Radioisotopic study of 11C-labelling methanol decomposition on iron oxide modified mesoporous MCM-41 silica
Sarkadi-Priboczki, Eva
Tsoncheva, Tanya
Ivanova, Ljubomira
CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 2009, 87 (03): : 478 - 485
[2] Radioisotopic tracing of methanol transformation using 11C-labelled methanol over copper ion-exchanged H-ZSM-5, H-Beta and H-MCM-41
Sarkadi-Priboczki, E.
Kumar, N.
Nieminen, V.
Kovacs, Z.
Murzin, D. Yu.
CATALYSIS LETTERS, 2007, 114 (1-2) : 17 - 23
[3] Radioisotopic tracing of methanol transformation using 11C-labelled methanol over copper ion-exchanged H-ZSM-5, H-Beta and H-MCM-41
É. Sarkadi-Pribóczki
N. Kumar
V. Nieminen
Z. Kovács
D. Yu. Murzin
Catalysis Letters, 2007, 114 : 17 - 23
[4] 11C-radiolabeling study of nickel modified H-MCM-41 with methanol as a probe molecule
E. Sarkadi-Priboczki
T. Tsoncheva
N. Kumar
D. Yu. Murzin
Journal of Materials Science, 2010, 45 : 4229 - 4235
[5] Desorption and catalytic study of iron modified MCM-41 silica by 11C-radiolabeled methanol
Sarkadi-Priboczki, Eva
Tsoncheva, Tanya
Ivanova, Ljubomira
CATALYSIS COMMUNICATIONS, 2008, 9 (09) : 1932 - 1936
[6] 11C-radiolabeling study of nickel modified H-MCM-41 with methanol as a probe molecule
Sarkadi-Priboczki, E.
Tsoncheva, T.
Kumar, N.
Murzin, D. Yu.
JOURNAL OF MATERIALS SCIENCE, 2010, 45 (15) : 4229 - 4235
[7] Radioactive 11C-methyl labeling for study of methanol co-reaction with methyl iodide on Fe - Beta zeolite
Sarkadi-Priboczki, Eva
Kumar, Narendra
Kovacs, Zoltan
Murzin, Dmitry Yu
ZEOLITES AND RELATED MATERIALS: TRENDS, TARGETS AND CHALLENGES, PROCEEDINGS OF THE 4TH INTERNATIONAL FEZA CONFERENCE, 2008, 174 : 1095 - 1098
[8] 11C-radioisotope labeled methanol conversion over H- and Cs-modified ZSM-5, Beta zeolites and MCM-41 mesoporous molecular sieve
Sarkadi-Pribóczki, E
Kumar, N
Salmi, T
Murzin, DY
Kovács, Z
CATALYSIS TODAY, 2005, 100 (3-4) : 379 - 383

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