Effects of Stabilizer Concentration on the Electrochemical Performance of Au-Pt Anode Catalysts for Direct Glucose Fuel Cell

The CO electrooxidation is long considered invincible in the proton exchange membrane fuel cell (PEMFC), where even a trace level of CO in H2 seriously poisons the anode catalysts and leads to huge performance decay. Here, we describe a class of atomically dispersed IrRu-N-C anode catalysts capable of oxidizing CO, H2, or a combination of the two. With a small amount of metal (24 μgmetal⋅cm−2) used in the anode, the H2 fuel cell performs its peak power density at 1.43 W⋅cm−2. When operating with pure CO, this catalyst exhibits its maximum current density at 800 mA⋅cm−2, while the Pt/C-based cell ceases to work. We attribute this exceptional catalytic behavior to the interplay between Ir and Ru single-atom centers, where the two sites act in synergy to favorably decompose H2O and to further facilitate CO activation. These findings open up an avenue to conquer the formidable poisoning issue of PEMFCs.

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Electrochemical performance of (Bi2O3)1−x(Er2O3) x–Ag composite material for intermediate temperature solid oxide fuel cell cathode

Solid State Ionics ◽

10.1016/j.ssi.2007.12.088 ◽

2008 ◽

Vol 179 (27-32) ◽

pp. 1597-1601 ◽

Cited By ~ 8

Author(s):

Junliang Li ◽

Shaorong Wang ◽

Renzhu Liu ◽

Zhengrong Wang ◽

J.Q. Qian

Keyword(s):

Composite Material ◽

Fuel Cell ◽

Electrochemical Performance ◽

Solid Oxide Fuel Cell ◽

Solid Oxide ◽

Intermediate Temperature ◽

Oxide Fuel ◽

Fuel Cell Cathode ◽

Cell Cathode

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Solid Oxide Direct Carbon Fuel Cell Electrochemical Performance Using Wheat and Spruce Carbon Fuels

Energy Sources Part A Recovery Utilization and Environmental Effects ◽

10.1080/15567036.2012.715230 ◽

2015 ◽

Vol 37 (22) ◽

pp. 2401-2407

Author(s):

O. D. Adeniyi

Keyword(s):

Fuel Cell ◽

Electrochemical Performance ◽

Solid Oxide ◽

Direct Carbon Fuel Cell

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PdCu/C anode catalysts for the alkaline ascorbate fuel cell

Applied Energy ◽

10.1016/j.apenergy.2018.10.073 ◽

2019 ◽

Vol 235 ◽

pp. 473-479 ◽

Cited By ~ 7

Author(s):

Omar Muneeb ◽

Emily Do ◽

Desiree Boyd ◽

Josh Perez ◽

John L. Haan

Keyword(s):

Fuel Cell ◽

Anode Catalysts

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Unprecedented SPEEK-trimetal Oxide Composites: Physicochemical and Electrochemical Performance in Fuel Cell

10.21203/rs.3.rs-339667/v1 ◽

2021 ◽

Author(s):

Gandhimathi Sivasubramanian ◽

Senthil Andavan Gurusamy Thangavelu ◽

Berlina Maria Mahimai ◽

Krishnan Hariharasubramanian ◽

PARADESI DEIVANAYAGAM

Keyword(s):

Fuel Cell ◽

Electrochemical Performance ◽

Composite Membrane ◽

Composite Membranes ◽

Membrane Electrode Assembly ◽

Membrane Electrode ◽

Ether Ether Ketone ◽

Poly Ether Ether Ketone ◽

Maximum Water ◽

Oxide Composites

Abstract Advanced polymer composite membranes were prepared from a linear sulfonated poly(ether ether ketone) (SPEEK) with bismuth cobalt zinc oxide [BCZO, (Bi2O3)0.07(CoO)0.03(ZnO)0.90] nanopowder as an inorganic additive for the application of H2-O2 fuel cell. Morphology data tend to provide evidences for the incorporation of BCZO into SPEEK polymer. Indeed, composite membrane loaded with 7.5 wt.% of BCZO was identified to uptake maximum water, while the pristine SPEEK membrane occurred to retain only 24.0 %. As such SPEEK matrix loaded with 7.5 wt.% of BCZO was found to exhibit the maximum proton conductivity of 0.030 S cm-1, whereas the pristine membrane was restricted to 0.021 S cm-1. Evidently, TGA profile of the composite membrane was measured to exhibit sufficient thermal stability to employ as electrolyte in fuel cell. The membrane electrode assembly of pristine SPEEK and SP-BCZO-7.5 wt.% membranes were fabricated and studied for their electrochemical performance. Indeed, the characteristics of newly developed composite membranes led to possess incredible feature towards fuel cell applications.

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