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Gas Diffusion Layers and High Temperature Carbon Fiber
CeTech is a professional manufacturer specialized in special carbon and graphite materials which were treated in high temperature ranging from 2000 ℃ to 3000 ℃. With its strong R&D capability and experiences in carbonization and graphitization processes, CeTech is able to continuously introduce new materials for several applications. Our expertise includes:
1. High temperature treatment up to 3000℃
2. Processing technology for Gas Diffusion Layers
3. Coating technology for Micro Porous Layer for GDLs
4. Processing technology for electrodes in Vanadium Redox Flow Batteries
5. Technology for high thermal conductive Synthetic Graphite Sheet
Carbon cloth modification (two ways to convert from hydrophobic to hydrophilic):
1. Acid treatment
2. PAM dispersant treatment
More information: https://drlab621.wixsite.com/microfab/blank-3
New Technology and Research
1 High Performance Self Pumping Enzyme Based Biofuel Cells (read more...)
"ABSTRACT: The real-world application of an enzyme-based biofuel cell (EBFC) requires the desirable immobilization of enzymes on the electrode surface, offering the feasibility of addressing its short lifetime and low-power density. "
2 Carbon cloth based on PAN carbon fiber practicability for PEMFC applications (read more...)
"ABSTRACT: This article describes the newly developed carbon cloth as GDL and proves its feasibility for PEMFC. Such carbon cloth based GDLs have performance equal to that of conventional carbon papers verified using the standard test instrument. The mechanical tests show that as a supporting base, carbon cloth is more practical than carbon paper because of its superior compressibility, elasticity, and flexibility performance, making it more appropriate for ongoing manufacturing and assembly processes. Furthermore, even though carbon paper is structurally flatter and smoother than carbon cloth, the discharge curves of both substrates coated with a MPL (micro-porous layer) showed similar current density (around 750 mA/cm2 ) at 0.6 V. This indicates that the developed carbon cloth with MPL has achieved the required performance and provides an alternative selection from carbon paper as GDL... "
3 Ultra thin gas diffusion layer development for PEMFC(read more...)
"ABSTRACT: This study shows the proposed ultra-thin GDL fabrication method is suitable for PEMFC applications and exhibits feasible functionality for fuel cells... "
4 Cathode Electrode for Alkaline Anion Exchange Membrane Fuel Cells(read more...)
"ABSTRACT: Two kinds of non-platinum metal catalysts, 40 wt% Ag/C (Ag/C) prepared using the impregnation method and commercial nano-silver powder (commercial Ag) were used as the cathode catalysts in alkaline anion exchange membrane fuel cells (AEMFC). Research results indicated that the performance of tested AEMFC with Ag/C and commercial Ag catalysts was 3.5% and 49.3% less than that of AEMFC with Pt/C, respectively. This research successfully implemented non-Pt catalyst for the cathode electrode in AEMFC applications... "
5 Comparison of Carbon Supports in Anion Exchange Membrane Fuel Cells (read more...)
"ABSTRACT: Anion exchange membrane fuel cells (AEMFCs) are attractive alternatives to proton exchange membrane fuel cells due to their ability to employ nonprecious metals as catalysts, reducing the cost of AEMFC devices. This paper presents an experimental exploration of the carbon support material effects on AEMFC performance. The silver (Ag) nanoparticles supported on three types of carbon materials including acetylene carbon (AC), carbon black (CB), and multiwalled carbon nanotube (MWCNT)—Ag/AC, Ag/CB, and Ag/MWCNT, respectively—were prepared using the wet impregnation method... "
6 Effect of Gas Diffusion Layer Thickness on the Performance of Anion Exchange Membrane Fuel Cells(read more...)
"ABSTRACT: Gas diffusion layers (GDLs) play a critical role in anion exchange membrane fuel cell (AEMFC) water management... "
7 Development of a facile and low-cost chitosan-modified carbon cloth for efficient self-pumping enzymatic biofuel cells (read more...)
"ABSTRACT: Enzymatic biofuel cell (EBC) attracts much attention recently in fuel cell community because of its unique feature to enable the enzyme as a catalyst, rather than precious metal, to oxidize the fuel. However, the embedment of carbon nanotubes, commonly used in the anodic electrode of EBC to electrically wire the enzyme, suffers from their complicated synthetic procedure and fragile assembly. In this regard, we demonstrate a facile and low-cost route to achieve a desired immobilization of the glucose oxidase on a robust, flexible conducive carbon cloth..."