Synthesis and characterization of organic agar-based membranes for microbial fuel cells

被引：16

作者：

Hernandez-Flores, Giovanni ^{[1
,5
]}

Andrio, Andreu ^{[2
]}

Compan, Vicente ^{[3
]}

Solorza-Feria, Omar ^{[4
]}

Mario Poggi-Varaldo, Hector ^{[1
]}

机构：

[1] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Dept Biotechnol & Bioengn, Environm Biotechnol & Renewable Energies R&D Grp, Av Inst Politecn Natl 2508, Mexico City 07000, DF, Mexico

[2] Univ Jaume 1, Escuela Tecn Super Ingn & Ciencias Expt, Dept Fis Aplicada, Castellon de La Plana 12071, Spain

[3] Univ Politecn Valencia, ETSII, Dept Temodineun Aplicada, E-46022 Valencia, Spain

[4] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Dept Biotechnol & Bioengn, Dept Quim,Environm Biotechnol & Renewable Energie, Av Inst Politecn Natl 2508, Mexico City 07000, DF, Mexico

[5] Univ Autonoma Guerrero, CONACYT, Escuela Super Ciencias Tierra, Ex Hacienda San Juan Bautista S-N, Taxco De Alarcon 40323, Guerrero, Mexico

来源：

JOURNAL OF POWER SOURCES | 2019年 / 435卷

关键词：

Agar membranes; Microbial fuel cell; Nafion (R) 117; Oxygen permeability; Proton conductivity; PROTON-EXCHANGE MEMBRANE; ELECTRICITY-GENERATION; OXYGEN PERMEABILITY; CONTACT-LENSES; TRANSPORT; PERFORMANCE; NAFION(R); WATER; MFC;

D O I：

10.1016/j.jpowsour.2019.226772

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The goal of this work was the synthesis and characterization of agar membranes for microbial fuel cells applications. Three sets of membranes were synthesized. For a first set of membranes (2, 4, 6, and 8 wt% agar concentration), both proton conductivity (sigma) and O-2 permeability (OP) increased as a function of agar concentration, up to 4 wt% agar. Beyond this concentration, the a levelled-off at 2.43 mS cm(-1) and OP increased. A second one set was obtaining by mixing 2, 4, 6, and 8 wt% concentrations of agar with KC110 wt%. Both a and OP increased as a function of increased agar concentration; nevertheless, the presence of KCl slightly affected in a negative way the OP. For the last set, agar concentration was fixed at 2 wt%, while KCl concentration was increased to 2, 4, 6, 8, and 10 wt%. The a did not significantly increase with salt concentration and the worst values of OP were observed. It was thus confirmed that agar concentration plays a significant role in the increase of a, but KCl does not improve membrane performance. Moreover, the agar membranes cost is two orders of magnitude lower than Nafion (R) 117. Therefore, the best membranes were those produced solely with agar.

引用

页数：11

共 49 条

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