Sökning: WFRF:(Ojwang Dickson) > The adsorption kine...
Fältnamn | Indikatorer | Metadata |
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000 | 03566naa a2200445 4500 | |
001 | oai:DiVA.org:su-160992 | |
003 | SwePub | |
008 | 181018s2018 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1609922 URI |
024 | 7 | a https://doi.org/10.1016/j.micromeso.2018.06.0192 DOI |
040 | a (SwePub)su | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Ojwang, Dickson O.u Stockholms universitet,Institutionen för material- och miljökemi (MMK)4 aut0 (Swepub:su)dojwa |
245 | 1 0 | a The adsorption kinetics of CO2 on copper hexacyanoferrate studied by thermogravimetric analysis |
264 | 1 | b Elsevier BV,c 2018 |
338 | a print2 rdacarrier | |
520 | a The CO2 adsorption and CO2 adsorption kinetics were evaluated by thermogravimetry on two Prussian blue analogues, K2x/3CuII [Fe-x(II) Fe-1-x(III) (CN)(6)](2/3), with nominally K-free x = 0.0 and K-rich x = 1.0. Differential isosteric heats of adsorption were determined from adsorption isotherms using the Clausius-Clapeyron equation and integral values by differential scanning calorimetry. The average differential heats of CO2 adsorption are 28 kJ/mol for x = 0.0 and 33 kJ/mol for x = 1.0. Both compositions show small maxima in differential heat at similar to 1 mmol/g. The integral adsorption heats were determined to be 26 kJ/mol for both x = 0.0 and x = 1.0. The kinetic CO(2 )adsorption/desorption curves can be modeled by a double exponential function describing two parallel processes with different rate constants. The activation energies for CO2 adsorption on x = 0.0 were 6 (1) kJ/mol for the faster component and 16 (1) kJ/mol for the slower one, while the corresponding values for x = 1.0 were 9 (1) kJ/mol and 7 (1) kJ/mol, respectively. The maximum CO2 uptake for both compositions was found to be similar to 4.5 mmol/g, 19.8 wt%, at 1 bar and 273 K. The materials exhibited fast adsorption kinetics and stable cyclic performance at room temperature. The kinetics were slower for the samples with x = 1.0 than for x = 0.0 which may be attributed to interactions between CO2 molecules and K+ ions. | |
650 | 7 | a NATURVETENSKAPx Kemi0 (SwePub)1042 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Chemical Sciences0 (SwePub)1042 hsv//eng |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Nanoteknik0 (SwePub)2102 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Nano-technology0 (SwePub)2102 hsv//eng |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Materialteknik0 (SwePub)2052 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Materials Engineering0 (SwePub)2052 hsv//eng |
653 | a Carbon dioxide | |
653 | a Adsorption | |
653 | a Kinetics | |
653 | a Isosteric heat | |
653 | a Activation energy | |
653 | a Cyclic performance | |
700 | 1 | a Grins, Jekabsu Stockholms universitet,Institutionen för material- och miljökemi (MMK)4 aut0 (Swepub:su)mat |
700 | 1 | a Svensson, Gunnaru Stockholms universitet,Institutionen för material- och miljökemi (MMK)4 aut0 (Swepub:su)gunnar |
710 | 2 | a Stockholms universitetb Institutionen för material- och miljökemi (MMK)4 org |
773 | 0 | t Microporous and Mesoporous Materialsd : Elsevier BVg 272, s. 70-78q 272<70-78x 1387-1811x 1873-3093 |
856 | 4 | u https://doi.org/10.1016/j.micromeso.2018.06.019y Fulltext |
856 | 4 | u https://doi.org/10.1016/j.micromeso.2018.06.019 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-160992 |
856 | 4 8 | u https://doi.org/10.1016/j.micromeso.2018.06.019 |
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