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Highly flat and highly homogeneous carbon paper with ultra-thin thickness for high-performance proton exchange membrane fuel cell (PEMFC)
- Source :
- Journal of Power Sources. 520:230832
- Publication Year :
- 2022
- Publisher :
- Elsevier BV, 2022.
-
Abstract
- Gas diffusion layer is one of the most important components of fuel cell, which supports the catalytic layer, collects the current and facilitates mass transfer. However, current carbon paper is mainly composed of long carbon fibers (CF), which brings drawbacks including rough surface, poor body homogeneity, excessive thickness, and preparation difficulty, etc. In this research, we invent a combination method to produce a highly flat, highly homogeneous, ultra-thin and high-performance carbon paper for proton exchange membrane fuel cell (PEMFC). The method combines the advantages of two materials, i.e. few-walled carbon nanotube (FWCNT) with high flatness and short CF with high porosity. And the combination method only contains three steps, material dispersion, carbon paper formation and heat treatment. The highest temperature for the heat treatment process is only 350 °C, which is much lower than the traditional 2000 °C. Due to the small size and fine distribution of FWCNT and CF, the new carbon paper exhibits highly flat (
- Subjects :
- Materials science
business.product_category
Renewable Energy, Sustainability and the Environment
Flatness (systems theory)
Energy Engineering and Power Technology
Proton exchange membrane fuel cell
Carbon nanotube
law.invention
Chemical engineering
law
Mass transfer
Carbon paper
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
Porosity
Dispersion (chemistry)
business
Layer (electronics)
Subjects
Details
- ISSN :
- 03787753
- Volume :
- 520
- Database :
- OpenAIRE
- Journal :
- Journal of Power Sources
- Accession number :
- edsair.doi...........e47847e6cc8862323806b718162ca785