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Home > Carbon Paper Electrodes > PtRu Electrode for Fuel Cell > DiffuCarb® E250c PtRu/HSC - Carbon Paper Electrode (22BB) for DMFC

DiffuCarb® E250c PtRu/HSC - Carbon Paper Electrode (22BB) for DMFC

  • Product Code：E250c
  • Description：
  • Brand：DiffuCarb®
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  • Keywords：DiffuCarb® E250c PtRu/HSC-Carbon Paper Electrode (22BB) for Direct Methanol Fuel Cell, SCI Materials Hub
DiffuCarb® E250c & E251c Carbon Paper Electrodes (22BB, DMFC)
DiffuCarb® E250c / E251c SGL 22BB Direct Methanol Fuel Cell PtRu Carbon Paper Electrodes

Carbon Paper Electrodes for
Direct Methanol Fuel Cells (DMFC)

DiffuCarb® E250c and E251c are gas diffusion electrodes built on SGL 22BB hydrophobic microporous carbon paper. E250c uses PtRu supported on high-surface-area carbon, while E251c uses high-surface-area PtRu Black. Both systems use Nafion® ionomer binder for DMFC electrode fabrication and research.

SGL 22BB ~0.22 mm PtRu / HSC High-Surface-Area PtRu Black Nafion® Ionomer DMFC
View E250c Prices View E251c Prices
01
PRODUCT OVERVIEW

DiffuCarb® E250c & E251c Carbon Paper Electrodes

PtRu/HSC and PtRu Black electrodes for Direct Methanol Fuel Cells

DiffuCarb® E250c and E251c are high-performance gas diffusion electrodes (GDEs) designed specifically for Direct Methanol Fuel Cells (DMFC). Both are fabricated on SGL 22BB hydrophobic carbon paper with optimized pore structures and water-management capability.

The two product families use PtRu-based catalysts and Nafion® ionomer binders, but differ in catalyst morphology and performance focus: E250c uses PtRu alloy supported on high-surface-area carbon, while E251c uses high-surface-area PtRu Black nanoparticles.

22BB

SGL 22BB Substrate

Hydrophobic microporous carbon paper used as the conductive gas-diffusion substrate.

PtRu

PtRu Catalyst Systems

E250c uses PtRu/HSC; E251c uses high-surface-area PtRu Black.

Nf

Nafion® Ionomer

Used as the ionomer binder within the catalyst layer.

DMFC

DMFC Focus

Designed for DMFC development, research, education and prototype systems.

02
COMPOSITION & STRUCTURE

E250c vs. E251c Composition

Same SGL 22BB substrate, different PtRu catalyst morphology

E250c

PtRu / High-Surface-Area Carbon

PtRu alloy supported on high-surface-area carbon, coated on SGL 22BB with Nafion® ionomer binder.

View E250c product page →
E251c

High-Surface-Area PtRu Black

Dense nanostructured PtRu Black catalyst layer on SGL 22BB with Nafion® ionomer binder.

View E251c product page →
E250c / E251c Composition & Structure Comparison
ComponentDiffuCarb® E250cDiffuCarb® E251c
Catalyst TypePtRu alloy supported on high-surface-area carbonHigh-surface-area PtRu Black nanoparticles
SubstrateSGL 22BB hydrophobic microporous carbon paperSGL 22BB hydrophobic microporous carbon paper
BinderNafion® ionomerNafion® ionomer
Catalyst MorphologyAlloy particles uniformly dispersed on porous carbonDense nanostructured PtRu Black with high surface area
03
PREPARATION METHOD

Electrode Preparation

Reference preparation descriptions supplied for E250c and E251c

E250

E250c

Catalyst ink is prepared by mixing PtRu/C with Nafion solution, then uniformly sprayed onto SGL 22BB carbon paper and dried to form the catalyst layer.

E251

E251c

PtRu Black powder is dispersed in Nafion-based ink, coated onto SGL 22BB carbon paper, and thermally treated according to the supplied process description to form a dense catalyst layer.

04
KEY ADVANTAGES

Performance & Structural Advantages

Comparison based on the supplied product positioning

E250c / E251c Key Advantages Comparison
FeatureDiffuCarb® E250cDiffuCarb® E251c
Electrochemical ActivityHigh and stableVery high; positioned for dynamic loads
CO ToleranceEnhanced via Ru contentExceptional CO resistance
Catalyst UtilizationBalance of activity and costHigh active-site density due to fine particles
Water / Gas ManagementSupported by SGL 22BB hydrophobic microporous structureSame SGL 22BB substrate for liquid / gas transport
Ion ConductivityNafion® supports proton-conduction pathwaysNafion® binder supports ion transport
Structural DurabilityPositioned for long-term stable operationPositioned for burst high-load or mobile applications
05
APPLICATIONS

Typical Application Scenarios

Application positioning supplied for E250c and E251c

DiffuCarb® E250c

Designed for cost-effective and stable DMFC systems in research, education, low-power electronics and long-duration DMFC development platforms.

DiffuCarb® E251c

Positioned for high-performance DMFC applications such as portable electronics, UAVs, military systems and field-grade prototypes requiring rapid response and peak output.

06
SUMMARY COMPARISON

E250c / E251c Summary Comparison

Catalyst type, activity, CO resistance, cost positioning and typical use

E250c / E251c Core Specification Comparison
SpecificationDiffuCarb® E250cDiffuCarb® E251c
Catalyst TypePtRu alloy on high-surface-area carbonHigh-surface-area PtRu Black
Activity LevelHighVery high
CO Poisoning ResistanceStrongExcellent
Cost EfficiencyBalancedHigher cost, higher output positioning
Typical UseStable, long-term DMFC operationHigh-performance or portable power sources
These electrodes are designed for integration into DMFC assemblies and membrane electrode assemblies (MEAs). Custom catalyst loading and configurations are available upon request.
07
E250c MODEL & PRICE

DiffuCarb® E250c PtRu/HSC Carbon Paper Electrode

SGL 22BB · Direct Methanol Fuel Cell · USD price list

DiffuCarb® E250c Model / Catalyst Loading / Price Table
Model / Catalyst SystemCarbon Paper & ThicknessPtRu LoadingCatalyst5×5 cm²10×10 cm²15×15 cm²20×20 cm²
E250c · 0.4 mg/cm² · 50% PtRu (1:1.5)/HSC22BB, ~0.22 mm0.4 mg/cm² PtRu (1:1.5)50% PtRu (1:1.5) / High Surface Area Carbon$33$115$228$349
E250c · 0.5 mg/cm² · 50% PtRu (1:1.5)/HSC22BB, ~0.22 mm0.5 mg/cm² PtRu (1:1.5)50% PtRu (1:1.5) / High Surface Area Carbon$35$119$238$359
E250c · 0.5 mg/cm² · 80% PtRu (1:1)/HSC22BB, ~0.22 mm0.5 mg/cm² PtRu (1:1)80% PtRu (1:1) / High Surface Area Carbon$35$119$238$359
E250c · 1.0 mg/cm² · 80% PtRu (1:1)/HSC22BB, ~0.22 mm1.0 mg/cm² PtRu (1:1)80% PtRu (1:1) / High Surface Area Carbon$39$145$299$499
SCI Materials Hub is Committed to Offering The Best Price & Customer Services!
08
E251c MODEL & PRICE

DiffuCarb® E251c High-Surface-Area PtRu Black Carbon Paper Electrode

SGL 22BB · Direct Methanol Fuel Cell · USD price list

DiffuCarb® E251c Model / Catalyst Loading / Price Table
Model / Catalyst SystemCarbon Paper & ThicknessPtRu LoadingCatalyst5×5 cm²10×10 cm²15×15 cm²20×20 cm²
E251c · 1.0 mg/cm² · High-Surface-Area PtRu Black22BB, ~0.22 mm1.0 mg/cm² PtRuHigh-Surface-Area PtRu (1:1)$36$140$289$459
E251c · 1.5 mg/cm² · High-Surface-Area PtRu Black22BB, ~0.22 mm1.5 mg/cm² PtRuHigh-Surface-Area PtRu (1:1)$39$149$299$479
E251c · 2.0 mg/cm² · High-Surface-Area PtRu Black22BB, ~0.22 mm2.0 mg/cm² PtRuHigh-Surface-Area PtRu (1:1)$49$159$310$499
E251c · 3.0 mg/cm² · High-Surface-Area PtRu Black22BB, ~0.22 mm3.0 mg/cm² PtRuHigh-Surface-Area PtRu (1:1)$59$199$399$650
E251c · 4.0 mg/cm² · High-Surface-Area PtRu Black22BB, ~0.22 mm4.0 mg/cm² PtRuHigh-Surface-Area PtRu (1:1)$69$229$460$799
SCI Materials Hub is Committed to Offering The Best Price & Customer Services!
09
CUSTOMIZATION

Custom Electrode Configuration

The following information can be customized according to user needs

mg

Catalyst Loading

Custom catalyst loading can be specified for the target electrode design.

CAT

Catalyst Brand / Type / Model

Catalyst brand, catalyst family and specific model can be customized.

ION

Ionomer / Binder

Ionomer or binder brand, model and ratio can be adjusted according to requirements.

GDL

Carbon Paper

Carbon-paper brand and model can be selected according to the electrode design.

International Orders & Shipping

For quotations, bulk orders, custom configurations or international procurement, contact SCI Materials Hub.

Email: contact@scimaterials.cn
Tel: +86 130-0303-8751 / +86 156-0553-2352
WeChat: SCI-Materials-Hub
Shipping: DHL / SF-Express / requested carriers
Payment: Bank Transfer / PayPal / Credit Card / Alipay / WeChat Pay
Quick Orders: Alibaba / Amazon / eBay stores
Worldwide shipping is available. Bulk quantities and custom electrode configurations are available upon request.
DiffuCarb® E250c / E251c · SGL 22BB · PtRu Carbon Paper Electrodes for DMFC · SCI Materials Hub

Partial references citing our materials (from Google Scholar)


Carbon Dioxide Reduction

1. ACS Nano Strain Relaxation in Metal Alloy Catalysts Steers the Product Selectivity of Electrocatalytic CO2 Reduction

The bipolar membrane (Fumasep FBM) in this paper was purchased from SCI Materials Hub, which was used in rechargeable Zn-CO2 battery tests. The authors reported a strain relaxation strategy to determine lattice strains in bimetal MNi alloys (M = Pd, Ag, and Au) and realized an outstanding CO2-to-CO Faradaic efficiency of 96.6% with outstanding activity and durability toward a Zn-CO2 battery.


2. Front. Chem. Boosting Electrochemical Carbon Dioxide Reduction on Atomically Dispersed Nickel Catalyst

In this paper, Vulcan XC-72R was purchased from SCI Materials Hub. Vulcan XC 72R carbon is the most common catalyst support used in the anode and cathode electrodes of Polymer Electrolyte Membrane Fuel Cells (PEMFC), Direct Methanol Fuel Cells (DMFC), Alkaline Fuel Cells (AFC), Microbial Fuel Cells (MFC), Phosphoric Acid Fuel Cells (PAFC), and many more!


3. Adv. Mater. Partially Nitrided Ni Nanoclusters Achieve Energy-Efficient Electrocatalytic CO2 Reduction to CO at Ultralow Overpotential

An AEM membrane (Sustainion X37-50 Grade RT, purchased from SCI Materials Hub) was activated in 1 M KOH for 24 h, washed with ultra-purity water prior to use.


4. Adv. Funct. Mater. Nanoconfined Molecular Catalysts in Integrated Gas Diffusion Electrodes for High-Current-Density CO2 Electroreduction

In this paper (Supporting Information), an anion exchanged membrane (Fumasep FAB-PK-130 obtained from SCI Materials Hub (www.scimaterials.cn)) was used to separate the catholyte and anolyte chambers.

SCI Materials Hub: we also recommend our Fumasep FAB-PK-75 for the use in a flow cell.


5. Appl. Catal. B Efficient utilization of nickel single atoms for CO2 electroreduction by constructing 3D interconnected nitrogen-doped carbon tube network

In this paper, the Nafion 117 membrane was obtained from SCI Materials Hub.


6. Vacuum Modulable Cu(0)/Cu(I)/Cu(II) sites of Cu/C catalysts derived from MOF for highly selective CO2 electroreduction to hydrocarbons

In this paper, Proton exchange membrane (Nafion 117), Nafion D520, and Toray 060 carbon paper were purchased from SCI Materials Hub.


7. National Science Review Confinement of ionomer for electrocatalytic CO2 reduction reaction via efficient mass transfer pathways

An anion exchange membrane (PiperION-A15-HCO3) was obtained from SCI Materials Hub.


8. Catalysis Communications Facilitating CO2 electroreduction to C2H4 through facile regulating {100} & {111} grain boundary of Cu2O

Carbon paper (TGPH060), membrane solution (Nafion D520), and ionic membrane (Nafion N117) were obtained from Wuhu Eryi Material Technology Co., Ltd (a company under SCI Materials Hub).


Batteries

1. J. Mater. Chem. A Blocking polysulfides with a Janus Fe3C/N-CNF@RGO electrode via physiochemical confinement and catalytic conversion for high-performance lithium–sulfur batteries

Graphene oxide (GO) in this paper was obtained from SCI Materials Hub. The authors introduced a Janus Fe3C/N-CNF@RGO electrode consisting of 1D Fe3C decorated N-doped carbon nanofibers (Fe3C/N-CNFs) side and 2D reduced graphene oxide (RGO) side as the free-standing carrier of Li2S6 catholyte to improve the overall electrochemical performance of Li-S batteries.


2. Joule A high-voltage and stable zinc-air battery enabled by dual-hydrophobic-induced proton shuttle shielding

This paper used more than 10 kinds of materials from SCI Materials Hub and the authors gave detailed properity comparsion.

The commercial IEMs of Fumasep FAB-PK-130 and Nafion N117 were obtained from SCI Materials Hub.

Gas diffusion layers of GDL340 (CeTech) and SGL39BC (Sigracet) and Nafion dispersion (Nafion D520) were obtained from SCI Materials Hub.

Zn foil (100 mm thickness) and Zn powder were obtained from the SCI Materials Hub.

Commercial 20% Pt/C, 40% Pt/C and IrO2 catalysts were also obtained from SCI Materials Hub.


3. Journal of Energy Chemistry Vanadium oxide nanospheres encapsulated in N-doped carbon nanofibers with morphology and defect dual-engineering toward advanced aqueous zinc-ion batteries

In this paper, carbon cloth (W0S1011) was obtained from SCI Materials Hub. The flexible carbon cloth matrix guaranteed the stabilization of the electrode and improved the conductivity of the cathode.


4. Energy Storage Materials Defect-abundant commercializable 3D carbon papers for fabricating composite Li anode with high loading and long life

The 3D carbon paper (TGPH060 raw paper) were purchased from SCI Materials Hub.


5. Nanomaterials A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS2 Cathode Catalysts

Nafion D520 (5 wt%), and carbon paper (GDL340) were received from SCI-Materials-Hub.


6. SSRN An Axially Directed Cobalt-Phthalocyanine Covalent Organic Polymer as High-Efficient Bifunctional Catalyst for Zn-Air Battery

Carbon cloth (W0S1011) and other electrochemical consumables required for air cathode were provided by SCI Materials Hub.


Oxygen Reduction Reaction

1. J. Chem. Eng. Superior Efficiency Hydrogen Peroxide Production in Acidic Media through Epoxy Group Adjacent to Co-O/C Active Centers on Carbon Black

In this paper, Vulcan XC 72 carbon black, ion membrane (Nafion N115, 127 μL), Nafion solution (D520, 5 wt%), and carbon paper (AvCarb GDS 2230 and Spectracarb 2050A-1050) were purchased from SCI Materials Hub.


2. Journal of Colloid and Interface Science Gaining insight into the impact of electronic property and interface electrostatic field on ORR kinetics in alloy engineering via theoretical prognostication and experimental validation

The 20 wt% Pt3M (M = Cr, Co, Cu, Pd, Sn, and Ir) were purchased from SCI Materials Hub. This work places emphasis on the kinetics of the ORR concerning Pt3M (M = Cr, Co, Cu, Pd, Sn, and Ir) catalysts, and integrates theoretical prognostication and experimental validation to illuminate the fundamental principles of alloy engineering.


Water Electrolysis

1. International Journal of Hydrogen Energy Gold as an efficient hydrogen isotope separation catalyst in proton exchange membrane water electrolysis

The cathodic catalysts of Pt/C (20 wt%, 2–3 nm) and Au/C (20 wt%, 4–5 nm) were purchased from SCI Materials Hub.


2. Small Science Silver Compositing Boosts Water Electrolysis Activity and Durability of RuO2 in a Proton-Exchange-Membrane Water Electrolyzer

Two fiber felts (0.35 mm thickness, SCI Materials Hub) were used as the porous transport layers at both the cathode and the anode.


3. Advanced Functional Materials Hierarchical Crystalline/Amorphous Heterostructure MoNi/NiMoOx for Electrochemical Hydrogen Evolution with Industry-Level Activity and Stability

Anion-exchange membrane (FAA-3-PK-130) was obtained from SCI Materials Hub website.


Fuel Cells

1. Polymer Sub-two-micron ultrathin proton exchange membrane with reinforced mechanical strength

Gas diffusion electrode (60% Pt/C, Carbon paper) was purchased from SCI Materials Hub.


Characterization

1. Chemical Engineering Journal Electrochemical reconstitution of Prussian blue analogue for coupling furfural electro-oxidation with photo-assisted hydrogen evolution reaction

An Au nanoparticle film was deposited on the total reflecting plane of a single reflection ATR crystal (SCI Materials Hub, Wuhu, China) via sputter coater.

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