Fuel-cell plant for autonomous power supply

Cnobloch, H.; Kohlmüller, H.; Kühl, D.

doi:10.1016/0013-7480(75)90040-6

Cited by 8 publications

(5 citation statements)

References 5 publications

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“…The interest in EG as an electrochemical fuel has been recently enhanced, because it may be produced from abundant and renewable resources such as cellulose [22]. However, despite some promising achievements [17][18][19][20][21]23], direct ethylene glycol fuel cells (DEGFCs) are still a laboratory device that are not commercially available. This unavailability is largely due to a lack of active and stable anode catalysts, generally based on platinum and platinum alloys, and also to the scarcity of suitable electrolytes for the alkaline environment.…”

Section: Introductionmentioning

confidence: 99%

Ethylene Glycol Electrooxidation on Smooth and Nanostructured Pd Electrodes in Alkaline Media

et al. 2010

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The electrooxidation of ethylene glycol (EG) has been studied either in situ on a smooth Pd electrode by FTIR spectroscopy or on nanostructured Pd‐based catalysts by cyclic voltammetry. The electrooxidation on the Pd electrode is dramatically influenced by the pH. Below pH 12, CO2 is formed and detected in the thin layer by FTIR, while at higher pH values glycolate, carbonate and oxalate are formed almost simultaneously at a potential of ca. 0.4 V versus RHE. Above 0.9 V glycolate is oxidised to oxalate and carbonate. The nanostructured electrocatalysts Pd–(Ni–Zn)/C, Pd–(Ni–Zn–P)/C and Pd/C are much more active than the smooth Pd electrode (up to 3,300 A g(Pd)–1) and give different distributions of the oxidation products. Pd/C is the most selective catalyst yielding glycolate, while mixtures of glycolate (major>60%), oxalate and carbonate are obtained with Pd–(Ni–Zn)/C or Pd–(Ni–Zn–P)/C. Carbonate is produced by oxidation of both glycolate (major contribution) and oxalate, while the major part of oxalate seems to be produced by the direct oxidation of EG.

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Section: Introductionmentioning

confidence: 99%

Ethylene Glycol Electrooxidation on Smooth and Nanostructured Pd Electrodes in Alkaline Media

et al. 2010

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“…3000 Wh kg −1 that's significantly higher than pure liquid hydrogen (2800 Wh l −1 ). 16,17 Ammonia dissociates into hydrogen and nitrogen undergoing a three electron process. The reaction is usually performed in basic electrolyte.…”

Section: Lis Of Symbolsmentioning

confidence: 99%

γ-Alumina Supported Copper Oxide Nanostructures Promoted with Ruthenium Oxide (RuO₂-CuO/Al₂O₃) and Palladium Oxide (PdO-CuO/Al₂O₃): Efficient Electrodes for Heterogeneous Catalysis of Ammonia Electrooxidation

Khan¹,

Shah²,

Ahmad³

et al. 2022

J. Electrochem. Soc.

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RuO2 and PdO promoted CuO/Al2O3 mixed metal oxide nanostructures synthesized via co-impregnation technique demonstrated a robust electrocatalytic activity towards ammonia electro-oxidation (AEO). Physio-chemically characterized RuO2-CuO/Al2O3 and PdO-CuO/Al2O3 catalyst powders exhibited high electrochemical active surface area (ECSA), the highest being shown by 1% RuO2-CuO/Al2O3. All fabricated electrodes displayed pleasing electroactive response towards AEO but ternary metal oxides showed superior and promoted catalytic output owing to their larger ECSA, higher current densities (j), larger diffusion coefficients (D°), greater apparent rate constants (kapp), and lower charge transfer resistance (Rct) values. Lower values of Rct obtained from EIS indicated the facilitation of electro-oxidation process over modified electrodes. The finest catalysis performance is expressed by 1% RuO2-CuO/Al2O3 producing the maximum oxidation current. All of the promoted CuO/Al2O3 mixed metal oxide exhibited excellent stability and reproducibility in analyte solution. Consequently, γ-Al2O3 supported metal oxide electrocatalysts can be of great socio-economic significance by enhancing the energy production kinetics thereby achieving a higher energy output.

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“…Moreover, deposition of bismuth adatoms on platinum surface is known to increase the catalytic activity of the electrode towards EG electrooxidation in alkaline medium (18,19). Tri-metallic catalysts were used by Cnobloch et al (20) as anode for an alkaline fuel cell (AFC). Therefore, the activity of Pd, Pt, Pd 0.5 Pt 0.5 , Pt 0.9 Bi 0.1 supported catalysts was examined in a Direct EG SAMFC.…”

Section: Performance Of Platinum-modified Catalysts For Eg Electrooxi...mentioning

confidence: 99%

Development of Electrocatalysts for the Solid Alkaline Membrane Fuel Cell (SAMFC)

et al. 2006

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The preparation of platinum-based catalysts dispersed onto a carbon support (Vulcan XC-72) is presented. The water-in-oil microemulsion method was used to synthesize several electrocatalysts (Ag/C, Pt/C, PtPd/C, PtBi/C, PtPdBi/C) because it is more appropriate that the colloidal way derived from the Bönneman method. The electroactivity of anodic and cathodic catalysts towards the electrooxidation of EG and oxygen reduction, respectively, is investigated and their electrical performances in a SAMFC are evaluated at room temperature. An improvement of the cell performance from 18 mW cm-2 to 30 mW cm- 2 was obtained at 20{degree sign}C.

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Fuel-cell plant for autonomous power supply

Cited by 8 publications

References 5 publications

Ethylene Glycol Electrooxidation on Smooth and Nanostructured Pd Electrodes in Alkaline Media

Ethylene Glycol Electrooxidation on Smooth and Nanostructured Pd Electrodes in Alkaline Media

γ-Alumina Supported Copper Oxide Nanostructures Promoted with Ruthenium Oxide (RuO₂-CuO/Al₂O₃) and Palladium Oxide (PdO-CuO/Al₂O₃): Efficient Electrodes for Heterogeneous Catalysis of Ammonia Electrooxidation

Development of Electrocatalysts for the Solid Alkaline Membrane Fuel Cell (SAMFC)

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Fuel-cell plant for autonomous power supply

Cited by 8 publications

References 5 publications

Ethylene Glycol Electrooxidation on Smooth and Nanostructured Pd Electrodes in Alkaline Media

Ethylene Glycol Electrooxidation on Smooth and Nanostructured Pd Electrodes in Alkaline Media

γ-Alumina Supported Copper Oxide Nanostructures Promoted with Ruthenium Oxide (RuO2-CuO/Al2O3) and Palladium Oxide (PdO-CuO/Al2O3): Efficient Electrodes for Heterogeneous Catalysis of Ammonia Electrooxidation

Development of Electrocatalysts for the Solid Alkaline Membrane Fuel Cell (SAMFC)

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Product

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γ-Alumina Supported Copper Oxide Nanostructures Promoted with Ruthenium Oxide (RuO₂-CuO/Al₂O₃) and Palladium Oxide (PdO-CuO/Al₂O₃): Efficient Electrodes for Heterogeneous Catalysis of Ammonia Electrooxidation