II International Symposium on Carbon for Catalysis ABSTRACTS

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PP-I-41 INVESTIGATION OF SURFACE OF ACTIVATED CARBON KM-2 WITH ELECTROSORBED IONS OF ALKALI AND ALKALINE-EARTH METALS Sveshnikova D.A., Gafurov M. M. 1 , Asvarov A. Sh. 2 , Shakhshaev Sh.O. 2 , Ramazanov A.Sh. 3 , Mirzaeva K.G. 3 Institute for Geothermal Problems of Daghestan Scientific Centre of Russian Academy of Science, Makhachkala, Russia 1 Analytical Centre for Collective Use of Daghestan Scientific Centre of Russian Academy of Science, Makhachkala, Russia 2 Institute of Physics, of Daghestan Scientific Centre of Russian Academy of Science, Makhachkala, Russia 3 Daghestan State University, Makhachkala, Russia e-mail: malik52@mail.ru It is known that applying external potential leads to detectable increasing of the carbon sorption capacity. There are a series of works devoted to adsorption of alkali and alkalineearth ions by activated carbons, in which the optimum conditions of this process are found. However, the interpretation of these results is difficult due to the complexity of the surface and textural properties of activated carbons, therefore some questions relating to the mechanism of cation electrosorption remain unsolved. The purpose of this work is the elucidation of the mechanism of the adsorption of alkali and alkaline-earth ions on polarized carbon KM-2. The investigations of the carbon surface were carried out by method of the potentiometric titration, Auger- and IR-spectroscopy, the X-ray phase analysis, scanning electron microscopy. The sorption capacity of cathodic polarized carbon with respect to Ca 2+ , Sr 2+ and Ba 2+ ions were 8, 15 and 10 meq g -1 respectively. The water washing of these carbons showed that Ca 2+ , Sr 2+ and Ba 2+ ions are adsorbed firmly and are not rinsed with water. The X-ray phase analysis data point to the fact that the strontium ions are on the cathodic polarized carbon surface essentially in the form SrCO 3 and partially in the form Sr(OH) 2 ; Ca 2+ and Ba 2+ ions are in the form MeCO 3 . After treatment of carbon samples by hydrochloric acid, 23 %, 50 % and 55 % of the total adsorbed strontium, calcium and barium amounts are removed from the carbon surface. The compounds detected by the X-ray phase analysis must be completely removed after treatment by hydrochloric acid. It is probable that the rest of the adsorbed Ca 2+ , 200
PP-I-41 Sr 2+ and Ba 2+ ions are in form of strong compounds which are not removed by treatment by HCl and are not exhibited on X-ray pattern. The assessment of acidic properties was carried out by method of the potentiometric titration and IR- spectroscopy. The pK values of surface functional groups of initial carbon as well as of carbon with adsorbed Ca 2+ , Sr 2+ and Ba 2+ ions were determined from the pH-metric titration curves. There are on the surface of initial carbon acidic groups only. Cathodic polarization leads to partial or total disappearance of acidic surface groups and to appearance of basic surface groups with the different values lgK diss . The obtained results can testify that acidic surface groups don’t take part in adsorption of Ca 2+ , Sr 2+ and Ba 2+ ions on cathodic polarized carbon KM-2. In addition, the insertion of the background ions into carbon structure by cathodic polarization is not observed that is confirmed by Auger spectra. The sorption capacity of cathodic polarized carbon with respect to Rb + ions is 0.75 meq g -1 , and with respect to Cs + ions is 1.00 meq g -1 . The X-ray phase analysis data point to the fact that the rubidium ions are on the polarized carbon surface in the form Rb 2 CO 3 and in the compounds that have general formula RbC x , the latter have the loosened graphite lattice. The intercalation of Rb + into space between the carbon layers are not excluded. The results of elemental analysis of these carbon samples show that there are, expect for elements found in initial carbon samples, rubidium ions only. The other ingredients of background solution are not detected. After water washing and treatment of carbon samples by hydrochloric acid, 23 % of adsorbed rubidium ion amount are removed from the carbon surface. In SEM micrographs of the activated carbon samples with adsorbed rubidium crystal substance, forming conglomerate, can be seen. The conglomerate formation was observed on the X-ray patterns too. About 46% of electrosorbed Cs + ions are removed by water washing and treatment by hydrochloric acid. Elemental analysis of the carbon surface with sorbed cesium shows that on these carbon samples there are background solution ions (K + ). It is possible that under optimal conditions for the cesium electrosorption the electrosorption of K + ions takes place too. On the X-ray patterns of such carbons the lines, which can not be uniquely related to one or another chemical compound of cesium or potassium, are detected. The data obtained in this work are usable for the further development of electrocatalysis and adsorption theory. Experiments were conducted by use of instrumentation of Analytical Centre for Collective Use of Daghestan Scientific Centre of RAS. 201
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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
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INVESTIGATION OF THE ELECTROCHEMICA
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SURFACE ELECTROCHEMISTRY OF CARBON
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TEMPLATED SYNTHESIS OF NOBLE METAL
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PROPERTIES AND STRUCTURE OF SORBENT
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CATALYSIS DURING SULPHUR COALS PROC
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ORDERED MESOPOROUS CARBONS SYNTHESI
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PP-I-7 INFLUENCE OF FUNCTIONALIZATI
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PP-I-8 AROMATIZATION OF 5-PHENYL-PI
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N 2 O CONVERSION USING BINARY MIXTU
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PP-I-9 [8] F. Gonçalves, G.E. Marn
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PP-I-10 The Table 1 demonstrates th
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PP-I-11 We suppose that the active
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PP-I-12 Activation with steam promo
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PP-I-13 separation of bundles forme
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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 and 170: PP-I-26 contain at first. Non-oxida
Page 171 and 172: PP-I-27 this reaction and that the
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: PP-I-40 The pore structure of origi
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
Page 221 and 222: PP-I-50 Computational details First
Page 223 and 224: PP-I-51 The result showed that surf
Page 225 and 226: PP-II-1 COOH COO(C
Page 227 and 228: PP-II-2 The result
Page 229 and 230: PP-II-3 prepared,
Page 231 and 232: PP-II-4 CNF from b
Page 233 and 234: PP-II-5 support; t
Page 235 and 236: PP-II-6 The main p
Page 237 and 238: PP-II-7 porous net
Page 239 and 240: PP-II-8 It is note
Page 241 and 242: PP-II-9 selective
Page 243 and 244: STABILITY OF A CARBON CATALYST FLUI
Page 245 and 246: PP-II-11 CARBON FI
Page 247 and 248: PP-II-12 CATALYTIC
Page 249 and 250: 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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