Designing CarbonOxygen Ratios of Graphene Oxide Membranes for Proton Exchange Membrane Fuel Cells
Joint Authors
Ahn, Minwoo
Liu, Renlong
Lee, Changgu
Lee, Wonyoung
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-03-07
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Graphene oxide (GO), which is the oxidized form of graphene, has holes and functional groups on the surface and thus has high potential to be used as an electrochemical transport channel material.
In this study, differently modified GO membranes are applied as electrolytes of proton exchange membrane fuel cells (PEMFCs) with controlled carbon/oxygen ratios.
The critical and desired properties of the electrolyte, such as electron conductivity, proton conductivity, interfacial reactivity, and cell performance are evaluated in identical platinum-sputtered model electrodes.
Among them, with the help of an increased concentration of oxygen-containing groups, a GO membrane with a low carbon/oxygen ratio shows a 2.9-fold improved maximum power density and advanced electrochemical properties compared with the pristine GO membrane.
The characterization of GO suggests that the redox state of the membrane is an important factor for controlling the proton conductivity, interfacial reactivity, and maximum power density of PEMFCs.
American Psychological Association (APA)
Ahn, Minwoo& Liu, Renlong& Lee, Changgu& Lee, Wonyoung. 2019. Designing CarbonOxygen Ratios of Graphene Oxide Membranes for Proton Exchange Membrane Fuel Cells. Journal of Nanomaterials،Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1182776
Modern Language Association (MLA)
Ahn, Minwoo…[et al.]. Designing CarbonOxygen Ratios of Graphene Oxide Membranes for Proton Exchange Membrane Fuel Cells. Journal of Nanomaterials No. 2019 (2019), pp.1-9.
https://search.emarefa.net/detail/BIM-1182776
American Medical Association (AMA)
Ahn, Minwoo& Liu, Renlong& Lee, Changgu& Lee, Wonyoung. Designing CarbonOxygen Ratios of Graphene Oxide Membranes for Proton Exchange Membrane Fuel Cells. Journal of Nanomaterials. 2019. Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1182776
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1182776