{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T14:42:10Z","timestamp":1777646530776,"version":"3.51.4"},"reference-count":19,"publisher":"MDPI AG","issue":"20","license":[{"start":{"date-parts":[[2019,10,15]],"date-time":"2019-10-15T00:00:00Z","timestamp":1571097600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004359","name":"Vetenskapsr\u00e5det","doi-asserted-by":"publisher","award":["2014-06430"],"award-info":[{"award-number":["2014-06430"]}],"id":[{"id":"10.13039\/501100004359","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004359","name":"Vetenskapsr\u00e5det","doi-asserted-by":"publisher","award":["2011-6512"],"award-info":[{"award-number":["2011-6512"]}],"id":[{"id":"10.13039\/501100004359","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The CO2 adsorption on various Prussian blue analogue hexacyanoferrates was evaluated by thermogravimetric analysis. Compositions of prepared phases were verified by energy-dispersive X-ray spectroscopy, infra-red spectroscopy and powder X-ray diffraction. The influence of different alkali cations in the cubic Fm3m structures was investigated for nominal compositions A2\/3Cu[Fe(CN)6]2\/3 with A = vacant, Li, Na, K, Rb, Cs. The Rb and Cs compounds show the highest CO2 adsorption per unit cell, ~3.3 molecules of CO2 at 20 \u00b0C and 1 bar, while in terms of mmol\/g the Na compound exhibits the highest adsorption capability, ~3.8 mmol\/g at 20 \u00b0C and 1 bar. The fastest adsorption\/desorption is exhibited by the A-cation free compound and the Li compound. The influence of the amount of Fe(CN)6 vacancies were assessed by determining the CO2 adsorption capabilities of Cu[Fe(CN)6]1\/2 (Fm3m symmetry, nominally 50% vacancies), KCu[Fe(CN)6]3\/4 (Fm3m symmetry, nominally 25% vacancies), and CsCu[Fe(CN)6] (I-4m2 symmetry, nominally 0% vacancies). Higher adsorption was, as expected, shown on compounds with higher vacancy concentrations.<\/jats:p>","DOI":"10.3390\/ma12203371","type":"journal-article","created":{"date-parts":[[2019,10,16]],"date-time":"2019-10-16T03:32:54Z","timestamp":1571196774000},"page":"3371","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Influence of the Presence of Different Alkali Cations and the Amount of Fe(CN)6 Vacancies on CO2 Adsorption on Copper Hexacyanoferrates"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0598-4769","authenticated-orcid":false,"given":"Gunnar","family":"Svensson","sequence":"first","affiliation":[{"name":"Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jekabs","family":"Grins","sequence":"additional","affiliation":[{"name":"Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel","family":"Ekl\u00f6f","sequence":"additional","affiliation":[{"name":"Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7947-3860","authenticated-orcid":false,"given":"Lars","family":"Eriksson","sequence":"additional","affiliation":[{"name":"Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Darius","family":"Wardecki","sequence":"additional","affiliation":[{"name":"Chalmers University of Technology, SE-412 96 Gothenburg, Sweden"},{"name":"Institute of Experimental Physics, Faculty of Physics, University of Warsaw, 00-927 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Clara","family":"Thoral","sequence":"additional","affiliation":[{"name":"Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Loic","family":"Bodoignet","sequence":"additional","affiliation":[{"name":"Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden"},{"name":"Materials Department, Institute National Polytechnique de Toulouse, 31029 Toulouse, France"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,10,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1016\/j.micromeso.2012.06.019","article-title":"CO2 adsorption studies on Prussian blue analogues","volume":"162","author":"Karadas","year":"2012","journal-title":"Microporous Mesoporous Mater."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"9404","DOI":"10.1039\/c3cc46019c","article-title":"Identification of bridged CO2 binding in a Prussian blue analogue using neutron powder diffraction","volume":"49","author":"Ogilvie","year":"2013","journal-title":"Chem. 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