RT Conference Proceedings
T1 In situ high pressure powder diffraction study of proton conductors based on metal phosphonates
A1 Bazaga-García, Montse
A1 Pérez-Colodrero, Rosario Mercedes
A1 Olivera-Pastor, Pascual
A1 Losilla, Enrique R.
A1 Salcedo, Inés R.
A1 Wright, Paul A.
A1 García-Aranda, Miguel Ángel
A1 Cabeza-Díaz, Aurelio
K1 Polímeros
AB Soft Porous Metal Organic frameworks (MOFs) are referred to as a class of coordination polymers that exhibit structural flexibility in response to guest interactions or physical stimuli [1]. By combining softness and regularity, the responsive crystalline frameworks show, for instance, unique mechanisms of separation and storage of gases.Here we report the effects of high pressures of CO2 on the frameworks of two types of coordination polymers based on multifunctional metal phosphonates, which exhibit proton conductivity at high relative humidity in addition to porous properties. The first one, Ni2(H2O)2(O3PCH2N(C4H8)NCH2PO3)⋅8H2O (Ni-STA-12) is a well-known MOF material structural featured by 1D channels build from MO5N octahedra linked by the piperazinyl moieties [2]. The second solid, Mg[(HO3PCH2)2NHCH2C6H4CH2NH-(CH2PO3H)2]·2H2O, (MgHDTMP·2H2O), is a pillared layer metal phosphonate containing flexible alkyldiaminetetraphosphonate as linker of the inorganic layers. For both solids, in situ synchrotron powder diffraction data were collected on BL04-MSPD under different pressures of CO2 (up to ~10 bar) and temperatures at ALBA (Barcelona, Spain). The resulting structural changes observed on their frameworks as well as their proton conductivities will be discussed.
YR 2015
FD 2015-06-30
LK http://hdl.handle.net/10630/9991
UL http://hdl.handle.net/10630/9991
LA eng
NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. Junta de Andalucía,Proyecto de Excelencia P12-FQM-1656 MINECO: MAT2013-41836-R.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026