II International Symposium on Carbon for Catalysis ABSTRACTS

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PP-I-27 FeMo CVD CATALYSTS FOR THE SELECTIVE PREPARATION OF SINGLE-WALLED CARBON NANOTUBES Lamouroux E., Kihn Y. 1 , Kalck P., Serp P. Laboratoire de Catalyse, Chimie Fine et Polymères, Ecole Nationale Supérieure d’Ingénieurs en Arts Chimiques Et Technologiques, 118 Route de Narbonne, 31077 Toulouse Cedex 4, France 1 CEMES-CNRS n°8001, 2 rue Jeanne Marvig 31055 Toulouse, France e-mail: Philippe.Serp@ensiacet.fr Nowadays, carbon nanotubes have become a strategic material in the area of nanotechnologies, and an increasing interest exists from the catalysis community [1,2]. Among the different kind of filamentous carbon single wall nanotubes (SWNT), multi wall nanotubes (MWNT) and graphite nanofibers (GNF) can be distinguish. SWNT are often considered as perfect 1D nanostructures so that their peculiar properties have been intensively studied by physicists and chemists. As far as the synthesis processes are concerned, catalytic chemical vapor deposition (C-CVD) seems to be the most promising technique in view of an industrial scale production. Currently, GNF and MWNT can be produced selectively by C-CVD on a large scale. However, for SWNT, catalytic systems performances in terms of selectivity and activity are still relatively low. One of the main challenge for the catalytic growth of SWNT is the control of the catalyst nanoparticles size distribution during the high temperatures (800-1200°C) process. Chemical vapor deposition is today a well established technique for the preparation of highly dispersed supported metal catalysts [3]. However, only scarce reports described the use of CVD supported catalysts for carbon nanotubes growth [4,5]. Thus, MWNT were produced from acetylene on FeMo/Al2O3 catalysts [4], and we have also reported a very active and selective Fe/Al2O3 catalyst prepared from [Fe(CO)5] for MWNT growth from ethylene [5]. In this work, we report for the first time results dealing with SWNT growth by C-CVD on catalysts produced by fluidized bed organometallic CVD. First results dealing with the catalytic performances of PtRu/SWNT systems for the selective hydrogenation of cinnamaldehyde will be also presented. The heterobimetallic FeMo/Al 2 O 3 CVD catalysts have been prepared from [Fe(CO) 5 ] and [Mo(CO) 6 ]. The SWNT have been prepared by catalytic CVD from methane at 900°C. We demonstrated first that monometallic Fe/Al 2 O 3 and Mo/Al 2 O 3 systems are not effective for 170
PP-I-27 this reaction and that the SWNT synthesis requires the production of small iron particles from the reduction of highly dispersed FeMoO 4 phase. Such highly dispersed oxide phase has been obtained from slow oxidation of bimetallic FeMo catalysts. The activity and selectivity towards SWNT production is also strongly dependent on two key parameters: the Fe/Mo molar ratio and the gas phase composition. Low Fe/Mo ratio favours SWNT production. Concerning the gas phase composition, N 2 /H 2 /CH 4 mixtures allows low selectivity towards SWNT whereas Ar/CH 4 mixtures allow to produce SWNT with selectivity as high as 75% (see Table and Figure below). Finally, after a simple purification step, we have used the SWNT containing material as support for PtRu bimetallic catalysts preparation. Preliminary results concerning the selective hydrogenation of cinnamaldehyde to cinnamyl alcohol with this bimetallic systems show promising results. Table: Catalyst activity and selectivity System a Activity b (g C /g cata ) SWNT selectvity c Fe Mo Fe 5 Mo 10 Fe 4 Mo 10 Fe 3 Mo 10 Fe 1 Mo 10 0,1 10 5,5 5.8 8,1 2.9 0 0 ~30 ~40 ~70 ~75 a) Fe-Mo weight ratio b) from TGA; c) from TGA and TEM observations 171
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Boreskov Institute of Catalysis of
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ORGANIZING COMMITTEE Chairman: Vlad
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CATALYSTS ON CARBON MATERIALS BASIS
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PREPARATION OF CARBON FILMS ON CERA
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PL-2 polymer gas separation membran
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CHARACTERIZATION OF POROUS STRUCTUR
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ROLE OF CARBON POROSITY AND FUNCTIO
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KEYNOTE LECTURES
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KL-1 governed by the equation of th
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KL-2 NITROGEN DOPED CARBON NANOFIBE
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KL-3 CARBON BASED STRUCTURED CATALY
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KL-4 The strong mesoporous carbons
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KL-5 NANOSTRUCTURED CARBONS FOR THE
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KL-6 THEORY OF MECHANICAL BEHAVIOR
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KL-7 MOLECULAR STRUCTURE EFFECT OF
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Presentation of FGUP “ENPO Neorga
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OP-I-1 COBALT ON CARBON NANOFIBER C
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OP-I-1 from 41 to 23 %, while the C
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OP-I-2 loading. It is also interest
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OP-I-3 5 nm 50 nm Figure 1: PtRu/MW
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OP-I-4 As it can be seen, potassium
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OP-I-5 [A] ⇔ A+[ ] (5) Kinetic an
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Results and discussion OP-I-6 The T
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OP-I-7 product selectivity). The an
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OP-I-8 After introduction of the me
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OP-I-9 Hydrogenations were carried
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OP-I-10 activated with CO 2 . In al
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OP-I-11 from Jaroszów deposit, Low
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OP-I-12 The carbon matrix avoids th
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OP-I-13 • thermal destruction of
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OP-I-14 hexanol (AA) was anchored t
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OP-I-15 removing the physically ads
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OP-I-16 surface concentration of HE
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Our analysis of the chemical activi
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OP-I-18 running. The TEM reveals th
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OP-I-19 explore the role of CNF sur
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pH 10 8 6 4 2 0 2 4 6 8 10 ml HCl a
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OP-I-21 resorcinol to catalyst mola
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OP-I-22 AS in the catalysts examine
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OP-I-23 polyfunctional surface cove
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OP-I-24 as sibunite and nanofibrous
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OP-I-25 is a consequence of the mac
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OP-I-27 THE CARBON FILMS ON Pt(111)
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OP-I-28 LASER RAMAN MICRO-SPECTROSC
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OP-I-29 ELECTROCATALYTIC PROPERTIES
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OP-II-1 SYNTHESIS
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OP-II-2 SYNTHESIS,
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TOWARDS LARGE SCALE PRODUCTION OF C
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CO-CARBONIZATION OF POLYMERS - NEW
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OP-II-5 3. Results
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OP-II-6 pore size
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OP-II-7 their adva
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OP-II-8 effect, el
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OP-II-9 Therefore,
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OP-II-10 The dehyd
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OP-II-11 a result
Page 119 and 120: INVESTIGATION OF THE ELECTROCHEMICA
Page 121 and 122: SURFACE ELECTROCHEMISTRY OF CARBON
Page 123 and 124: TEMPLATED SYNTHESIS OF NOBLE METAL
Page 125 and 126: PROPERTIES AND STRUCTURE OF SORBENT
Page 127 and 128: CATALYSIS DURING SULPHUR COALS PROC
Page 129 and 130: ORDERED MESOPOROUS CARBONS SYNTHESI
Page 131 and 132: PP-I-7 INFLUENCE OF FUNCTIONALIZATI
Page 133 and 134: PP-I-8 AROMATIZATION OF 5-PHENYL-PI
Page 135 and 136: N 2 O CONVERSION USING BINARY MIXTU
Page 137 and 138: PP-I-9 [8] F. Gonçalves, G.E. Marn
Page 139 and 140: PP-I-10 The Table 1 demonstrates th
Page 141 and 142: PP-I-11 We suppose that the active
Page 143 and 144: PP-I-12 Activation with steam promo
Page 145 and 146: PP-I-13 separation of bundles forme
Page 147 and 148: PP-I-14 temperature at which the ma
Page 149 and 150: PP-I-15 Titania was prepared by hyd
Page 151 and 152: PP-I-16 A B Figure 1. SEM images co
Page 153 and 154: PP-I-17 the carbon matrix has been
Page 155 and 156: PP-I-18 0.9 0.8 0.7 0.6 lg (ΔV/ΔR
Page 157 and 158: PP-I-19 Electron-microscopic studie
Page 159 and 160: PP-I-20 time on stream increased fr
Page 161 and 162: CARBON-SUPPORTED 12-MOLYBDOPHOSPHOR
Page 163 and 164: PP-I-23 CARBON SUPPORTS FOR IMMOBIL
Page 165 and 166: PP-I-24 example, in the polymer ele
Page 167 and 168: PP-I-25 of microporous structure wa
Page 169: PP-I-26 contain at first. Non-oxida
Page 173 and 174: CONTROLLING DIAMETER AND PRESENCE O
Page 175 and 176: INFLUENCE OF GAS OXIDATIVE TREATMEN
Page 177 and 178: PP-I-30 EXPERIMENTAL VALUES OF THE
Page 179 and 180: PP-I-30 Acknowledgements The author
Page 181 and 182: PP-I-31 suspensions of UFD had low
Page 183 and 184: PP-I-32 It was detected, that precu
Page 185 and 186: PP-I-33 consistence of the process,
Page 187 and 188: PP-I-34 practically identical [2],
Page 189 and 190: PP-I-35 • surface porosity (P 245
Page 191 and 192: PP-I-36 (COOH+OH), mg-eq/g 1,8 1,2
Page 193 and 194: PP-I-37 As one can see in the table
Page 195 and 196: PP-I-38 hydrogenation (61 o and 65
Page 197 and 198: PP-I-39 Ensembles №№ 31, 45, 55
Page 199 and 200: PP-I-40 The pore structure of origi
Page 201 and 202: PP-I-41 Sr 2+ and Ba 2+ ions are in
Page 203 and 204: PP-I-42 volume are formed from init
Page 205 and 206: PP-I-43 30 wt% Pt-15 wt% Ru/NCM cat
Page 207 and 208: PP-I-44 Figure 1. From left to righ
Page 209 and 210: PP-I-45 Table 1: Characteristics of
Page 211 and 212: PP-I-45 The search for alternative
Page 213 and 214: PP-I-46 zeroth moment expression, w
Page 215 and 216: PP-I-47 It was revealed, that the i
Page 217 and 218: PP-I-48 Table 1 Characteristics of
Page 219 and 220: PP-I-49 4-Carboxybenzaldehyde (4-CB
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PP-I-50 Computational details First
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PP-I-51 The result showed that surf
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PP-II-1 COOH COO(C
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PP-II-2 The result
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PP-II-3 prepared,
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PP-II-4 CNF from b
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PP-II-5 support; t
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PP-II-6 The main p
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PP-II-7 porous net
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PP-II-8 It is note
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PP-II-9 selective
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STABILITY OF A CARBON CATALYST FLUI
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PP-II-11 CARBON FI
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PP-II-12 CATALYTIC
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THE SORBENTS FOR AIR CLEANING PREPA
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MACRO-SHAPING OF CARBON NANOFIBERS
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PP-II-15 MESOPOROU
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PP-II-16 EVALUATIO
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PP-II-16 As it wou
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PP-II-17 with exis
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PP-II-18 Thus, the
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PP-II-19 (NaOH, Cs
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PP-II-20 MEDICAL C
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PP-II-21 Pt /AC an
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PP-II-22 Prelimina
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FACTORS DETERMINING THE CATALYTIC P
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NANOPOROUS CARBON MATERIALS AS EFFE
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CARBON NANOSTRUCTURAL MATERIALS PRO
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GROWTH OF CARBON NANOFIBERS ON META
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ACTIVE CARBON AS SUPPORT FOR IMMOBI
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PP-II-28 USING OF
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AKSOYLU Ahmet Erhan Department of C
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DIDENKO Olga Pisarzhevskii Institut
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KOGAN Victor M. Zelinsky Institute
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NOUGMANOV Evgeniy Lomonosov Moscow
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SERP Philippe INPToulouse 118 Route
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ZAITSEV Yurij P. Institute for Sorp
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steel, Hastelloy C22, Titanium, Tan
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Условия эксплуатац
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DONAU LAB MOSCOW ПРОГРАММА
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CONTENT PLENARY LECTURES...........
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OP-I-12 Maldonado-Hódar F.J., Carr
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OP-II-8 Isse A.A.,
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PP-I-21 Karaseva M.S., Perederiy M.
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PP-I-47 Zaitsev Yu., Zhuravsky S.,
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PP-II-21 Özkara S
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II International Symposium on Carbon for Catalysis ABSTRACTS

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