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Scaling-Up Graphene Membrane Electrode for Glucose-based Fuel Cell.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Scaling-Up Graphene Membrane Electrode for Glucose-based Fuel Cell./
作者:	Buelke, Chris.
面頁冊數:	1 online resource (108 pages)
附註:	Source: Masters Abstracts International, Volume: 83-12.
Contained By:	Masters Abstracts International83-12.
標題:	Materials science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29162861click for full text (PQDT)
ISBN:	9798819388778

Scaling-Up Graphene Membrane Electrode for Glucose-based Fuel Cell.
Buelke, Chris.

Scaling-Up Graphene Membrane Electrode for Glucose-based Fuel Cell. - 1 online resource (108 pages)

Source: Masters Abstracts International, Volume: 83-12.

Thesis (M.S.)--University of Colorado at Boulder, 2022.

Includes bibliographical references

In this work, a suitable transfer membrane of ethylene chlorotryfluoroethylene (ECTFE) is utilized to scale up small (11 cm2) graphene membrane electrodes (grMEs) to larger sizes (105 cm2). Characterization of these membranes by SEM images and both sheet resistance and diffusion cell measurements, as well as finding the minimum radius of curvature for eventual spiral-wound designs, paves the road to both eventual large-scale fabrication and initial optimizations of the membrane performance for integration into a glucose-based fuel cell and subsequent initial power-on tests of the prototype. Before scaling up, small grMEs made with PSf (gr-PSf) had their replicability stabilized by installing a chiller on the bath sonicator used during the fabrication process, producing membranes of 16.3 ± 0.82 ohms/sq that was on par with our previous work. Scaled up gr-PSf membranes showed increased sheet resistance to 122 ± 6.1 ohms/sq. Switching out the PSf for cellulose acetate (CA) saw large scale gr-CA membranes measuring at 108 ± 5.4 ohms/sq. This increased sheet resistance is thought to be due to the degree of order of the graphene flakes during fabrication, but further investigation is required. Optimizing the gr-CA membranes for use in the fuel cell included a combination of altering some phase inversion parameters to maximize glucose diffusion while also minimizing thickness. A spiral-wound architecture is possible with the gr-CA able to wrap around a 0.27 mm diameter support rod with a decrease in sheet resistance of 5.19%.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798819388778Subjects--Topical Terms:

543314
Materials science.
Subjects--Index Terms:

ConductivityIndex Terms--Genre/Form:

542853
Electronic books.

Scaling-Up Graphene Membrane Electrode for Glucose-based Fuel Cell.
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504 $a Includes bibliographical references
520 $a In this work, a suitable transfer membrane of ethylene chlorotryfluoroethylene (ECTFE) is utilized to scale up small (11 cm2) graphene membrane electrodes (grMEs) to larger sizes (105 cm2). Characterization of these membranes by SEM images and both sheet resistance and diffusion cell measurements, as well as finding the minimum radius of curvature for eventual spiral-wound designs, paves the road to both eventual large-scale fabrication and initial optimizations of the membrane performance for integration into a glucose-based fuel cell and subsequent initial power-on tests of the prototype. Before scaling up, small grMEs made with PSf (gr-PSf) had their replicability stabilized by installing a chiller on the bath sonicator used during the fabrication process, producing membranes of 16.3 ± 0.82 ohms/sq that was on par with our previous work. Scaled up gr-PSf membranes showed increased sheet resistance to 122 ± 6.1 ohms/sq. Switching out the PSf for cellulose acetate (CA) saw large scale gr-CA membranes measuring at 108 ± 5.4 ohms/sq. This increased sheet resistance is thought to be due to the degree of order of the graphene flakes during fabrication, but further investigation is required. Optimizing the gr-CA membranes for use in the fuel cell included a combination of altering some phase inversion parameters to maximize glucose diffusion while also minimizing thickness. A spiral-wound architecture is possible with the gr-CA able to wrap around a 0.27 mm diameter support rod with a decrease in sheet resistance of 5.19%.
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