RT info:eu-repo/semantics/article
T1 Assessing the ageing process of cation exchange membranes in bioelectrochemical systems
A1 Carmona del Río, Francisco Javier
A1 Alonso, Raúl M.
A1 Prádanos del Pico, Pedro Lourdes
A1 Morán, Antonio
A1 Escapa, Adrián
A1 San Martín, María Isabel
K1 Bioelectrochemical system
K1 Sistema bioelectroquímico
K1 Cation exchange membranes
K1 Membranas de intercambio catiónico
K1 23 Química
K1 22 Física
AB Bioelectrochemical systems (BES) encompass a group of bio-based technologies capable of directly converting organic matter into electricity. In these systems, which are derived from conventional electrochemical technologies, the ion exchange membrane is a key element because of its influence on the economic feasibility and performance of BES. This study examined the impact of the long-term operation of BES on the mechanical, chemical, and electrochemical properties of five different kinds of cation exchange membranes (Nafion-117, CMI-7000, Zirfon UTP 500, FKE, and FKB) through several techniques: (i) scanning electron microscopy and atomic force microscopy to assess the changes on the membrane surface, (ii) thermogravimetric analysis to evaluate the structural stability of the membranes, and (iii) ion exchange capacity to monitor any change in their electrochemical properties. Results confirmed that there is not an ideal membrane for BES. While Nafion and CMI exhibited the strongest chemical structure, they also underwent the highest fouling, as revealed by a fast increase in surface roughness.
PB Elsevier
SN 0360-3199
YR 2019
FD 2019
LK https://uvadoc.uva.es/handle/10324/47070
UL https://uvadoc.uva.es/handle/10324/47070
LA eng
NO International Journal of Hydrogen Energy, 2019, vol. 44, n. 47, p. 25287-25296
NO Producción Científica
DS UVaDOC
RD 27-dic-2024