• Wed. Feb 8th, 2023

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Gas diffusion layer base electrode diffusion layer conductive hydrophobic carbon paper microporous carbon PTFE for experiment

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Gas diffusion layer base electrode diffusion layer conductive hydrophobic carbon paper microporous carbon PTFE for experiment

$189.00$231.00

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SKU: 3256803446956056

Description

  • DIY Supplies: ELECTRICAL
  • Certification: NONE
  • Origin: Mainland China

The mall is specialized in the production and sales of high-purity experimental products for "scientific research institutes, universities and other" scientific research institutions and laboratories. When purchasing high-purity industrial products for production in non low-cost factories, relatives should buy them according to their own actual use to avoid "claiming" that they can also enter the laboratory as experimental products and the same industrial production products, which will affect the accuracy and accuracy of experimental results.

Customize various specifications of diffusion layer carbon paper. Please tell the customer service personnel the size you need.

240mm-200mm (28bc) = length 240mm – width 200mm (model 28bc). Other specifications in the option also mean the same.

1. The microporous layer (also called carbon powder layer, filling layer) of the conductive carbon paper of the gas diffusion layer is a carbon black hydrophobic coating between the catalytic layer and the carbon paper, which is mainly used to reduce the contact resistance between the catalytic layer and the base layer, redistribute the gas and water, prevent the electrode catalytic layer from "flooding", and prevent the catalytic layer from leaking to the base layer during the preparation process.

2. It plays an important role in water vapor transmission in fuel cells. Optimizing MPL can improve the water vapor management of cells, thereby improving the performance of cells.

3. Application direction:

Hydrogen fuel cell PEMFC

Methanol fuel cell DMFC

Microbial fuel cell MFC

Supercapacitor

4. Classification:

BB: PTFE layer and microporous layer. This type of carbon paper is hydrophobic treated with PTFE and coated with a layer of MPL (microporous layer)

BC: PTFE layer and microporous layer. Compared with the BB model, the BC model has an increase in mass per unit area and a decrease in air permeability and porosity. In terms of technology, BC is coated twice, while BB is coated once, so BC is more dense than BB’s microporous layer.

22BB, 36BB and 39BB are non-woven carbon paper with microporous layer (MPL), which is treated with PTFE to 25-30wt%. Hydrophobic treatment produces waterproof performance, which can prevent the overflow of highly porous carbon fiber backing and actively support the water management of PEM fuel cells. BB is an excellent low-cost substitute for traditional woven carbon paper gas diffusion layer (GDL) and gas diffusion medium materials.

22, 36, 39 series carbon fiber paper aims to combine the required production robustness with excellent performance characteristics. Stack developers and assemblers benefit from the following greatly improved features.

It greatly improves the homogeneity between batches and within batches.

It has been proved that the overall variability is better than+/- 10% (2 sigma)

Greatly improve surface flatness

Greatly reduce the occurrence of failure points on the carbon paper roll

Optimum performance under various operating conditions

Recommended application (22 series): PEMFC automobile, PEM electrolysis

Recommended application (36 series): fixed PEMFC, PEMFC automobile, high temperature HT-PEMFC

Recommended application (39 series): portable PEMFC, PEM electrolysis

28BC, 29BC, 35BC and 39BC are non-woven carbon paper with microporous layer (MPL), which is treated with 25-30wt% PTFE. Hydrophobic treatment produces waterproof performance, which can prevent the overflow of highly porous carbon fiber backing and actively support the water management of PEM fuel cells. BC is an excellent low-cost alternative to traditional woven carbon paper gas diffusion layer (GDL) and gas diffusion medium materials.

28, 29, 35, 39 series carbon fiber paper aims to combine the required production robustness with excellent performance characteristics. Stack developers and assemblers benefit from the following greatly improved features:

It greatly improves the homogeneity between batches and within batches.

It has been proved that the overall variability is better than+/- 10% (2 sigma)

Greatly improve the surface flatness.

Greatly reduce the occurrence of failure points on the carbon paper roll

Optimum performance under various operating conditions.