Prof Gunnar Svensson

Affiliations:
Email: gunnar.svensson@mmk.su.se
Mobile: +46 705 688361
Phone: +46 8 164505
Address: Department of materials and environmental chemistryStockholm University, 10691 Stockholm, Sweden


Description

My research interests are transition metal oxides specially those which can be used as electrode materials in solid electrolyte fuel cells and batteries. I am interested in the synthesis and characterisation of such compounds. At the moment perovskite related iron based oxides are of certain interes, but also Prussian blue analogues For the structural characterisation of these a combination of transmission electron microscopy, X-ray powder diffraction and neutron diffraction is used. The magnetic and electronic transport properties are measured as well. Of course I am interested in other transition metal oxides as well. I am also interested in the structure and properties of various modifications of carbons.

Carbon is a fascinating element and its various polymorphs (fullerenes and graphene, graphite, diamond, numerous amorphous and mesoporous forms) provide a rich playground for fundamental and applied sciences. Important technological applications exist in many areas and their number is continuously growing. The research aims at new forms of carbon, "polyanionic carbides", from the high pressure treatment of acetylide carbides. Acetylides are salt-like carbides that contain C22- dumbbell anions isoelectronic to acetylene and cations of electropositive metals (alkali, alkaline earth, rare earth).. Similar to the pressure-induced polymerization of molecular acetylene C2H2 to polyacetylene, C22- units are expected to polymerize - within the matrix of countercations - into polyanionic chain, ribbon and layer moieties. This would add a new feature to carbon chemistry, and materials containing or consisting of polymeric carbon anions can be expected to display interesting optical and electron transport properties. The ultimate goal of our research is the validation of polyanionic carbides as a class of chemical compounds and to provide new understanding into the origin of the different chemistry of carbon and its heavier congeners Si, Ge, and Sn where the occurrence of polymeric anions is widespread. I lecturing at courses like basic inorganic chemistry, symmetry and bonding, water chemistry, materials chemistry.

My administrative duties involves: Head of the department

http://su.diva-portal.org/smash/resultList.jsf?dswid=1505〈uage=sv&searchType=RESEARCH&query=&af=[]&aq=[[{"author":"Svensson"}]]&aq2=[[{"dateIssued":{"from":"1990","to":"2014"}},{"organisationId":"5250","organisationId-Xtra":true},{"publicationTypeCode":["article","review","comprehensiveLicentiateThesis","manuscript","dissertation","conferenceProceedings","monographDoctoralThesis","comprehensiveDoctoralThesis","conferencePaper"]},{"contentTypeCode":["refereed"]}]]&aqe=[]&noOfRows=50&sortOrder=dateIssued sort desc&onlyFullText=false&sf=all&jfwid=1505



Projects

Polyanionic forms of carbon
01/01/2013 - 31/12/2016
Metaller bildar en mängd slag av föreningar med kol, te.x. metallinterkalerad grafit och fulleréner (fullerider) varav många uppvisar speciella strukturer och egenskaper. Gemensamt för dessa material är elektronöverföringen från en...

Inorganic chemistry days
01/11/2016 - 30/11/2016

“4th Oorgandagarna – Inorganic days” is a biannual meeting for inorganic chemists in a broad context. The focus is on recent developments within inorganic chemistry and is a meeting point for European and Swedish scientists. From students to senior scientists, indus...


The Consortium for Crystal Chemistry, C3
01/01/2012 - 31/12/2015
Konsortiet för Kristallkemi C3 Den atomära strukturen hos olika material bär på information om materialens egenskaper. Det viktigaste sättet att få fram strukturell information är att använda sig av diffraktionstekniker där pulver, t...

Carbon membranes from unburned carbon in fly ash for environmental applications
01/01/2009 - 31/12/2011
Unburned carbon present in biomass (bagasse) fly ash was found to be a suitable precursor for obtaining activated carbon having a combination of meso and micropores, in the planning grant study carried out by the applicants in 2007. In addition, the oxide constituent in fly ash ...

Studies of cobalt based perovskites for cathode materials in solid oxide fuel cells.
01/01/2008 - 31/12/2010
This project concerns the systematic search for new cathode electrode materials amoung novel cobalt oxide based perovskites, to be used in solid oxide electrolyte fuel cells (SOFC). A good cathode material for a SOFC should be have high electronic and ionic transport properties,...


Collaborating with

Zou, Xiaodong

Xiaodong Zou is a full professor at the Department of Physical, Inorganic and Structural Chemistry, and the director of the Berzelii Centre EXSELENT on Porous Materials at Stockholm University. She received her Bachelor of Science in Physics 1984 at Peking University and Maste...


Last updated on 2017-11-08 at 12:36