CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Introducing catalyst in alkaline membrane for improved performance direct borohydride fuel cells
Qin, HY; Lin, LX; Chu, W; Jiang, W; He, Y; Shi, Q; Deng, YH; Ji, ZG; Liu, JB; Tao, SW
2018
Source PublicationJOURNAL OF POWER SOURCES
ISSN0378-7753
Volume374Pages:113-120
Subtype期刊论文
AbstractA catalytic material is introduced into the polymer matrix to prepare a novel polymeric alkaline electrolyte membrane (AEM) which simultaneously increases ionic conductivity, reduces the fuel cross-over. In this work, the hydroxide anion exchange membrane is mainly composed of poly(vinylalcohol) and alkaline exchange resin. CoCl2 is added into the poly(vinylalcohol) and alkaline exchange resin gel before casting the membrane to introduce catalytic materials. CoCl2 is converted into CoOOH after the reaction with KOH solution. The crystallinity of the polymer matrix decreases and the ionic conductivity of the composite membrane is notably improved by the introduction of Co-species. A direct borohydride fuel cell using the composite membrane exhibits an open circuit voltage of 1.11 V at 30 degrees C, which is notably higher than that of cells using other AEMs. The cell using the composite membrane achieves a maximum power density of 283 mW cm(-2) at 60 degrees C while the cell using the membrane without Co-species only reaches 117 mW cm(-2) at the same conditions. The outstanding performance of the cell using the composite membrane benefits from impregnation of the catalytic Co-species in the membrane, which not only increases the ionic conductivity but also reduces electrode polarization thus improves the fuel cell performance. This work provides a new approach to develop high-performance fuel cells through adding catalysts in the electrolyte membrane.
KeywordPolymer Electrolyte Membrane Anion-exchange Membranes Cobalt Hydroxide Anode Conductivity Diagnosis Impedance Oxidation
DOI10.1016/j.jpowsour.2017.11.008
Indexed BySCI
Language英语
WOS IDWOS:000418391900015
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/29054
Collection中科院上海应用物理研究所2011-2019年
Affiliation1.Qin, HY
2.Lin, LX
3.Chu, W
4.Jiang, W
5.He, Y
6.Shi, Q
7.Deng, YH
8.Ji, ZG
9.Liu, JB
10.Tao, SW
Recommended Citation
GB/T 7714
Qin, HY,Lin, LX,Chu, W,et al. Introducing catalyst in alkaline membrane for improved performance direct borohydride fuel cells[J]. JOURNAL OF POWER SOURCES,2018,374:113-120.
APA Qin, HY.,Lin, LX.,Chu, W.,Jiang, W.,He, Y.,...&Tao, SW.(2018).Introducing catalyst in alkaline membrane for improved performance direct borohydride fuel cells.JOURNAL OF POWER SOURCES,374,113-120.
MLA Qin, HY,et al."Introducing catalyst in alkaline membrane for improved performance direct borohydride fuel cells".JOURNAL OF POWER SOURCES 374(2018):113-120.
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