نتایج جستجو برای: alkaline fuel cells

تعداد نتایج: 1476183  

Journal: :Physical chemistry chemical physics : PCCP 2014
T Poux A Bonnefont A Ryabova G Kéranguéven G A Tsirlina E R Savinova

Hydrogen peroxide has been identified as a stable intermediate of the electrochemical oxygen reduction reaction on various electrodes including metal, metal oxide and carbon materials. In this article we study the hydrogen peroxide oxidation and reduction reactions in alkaline medium using a rotating disc electrode (RDE) method on oxides of the perovskite family (LaCoO3, LaMnO3 and La0.8Sr0.2Mn...

2013
Qinggang He Qing Li Samson Khene Xiaoming Ren Franz E. Loṕez-Suaŕez Dolores Lozano-Castello Agustín Bueno-Loṕez Gang Wu

A new nanocomposite catalyst consisting of high-loading cobalt oxide (CoO) on nitrogen-doped reduced graphene oxide (rGO) for oxygen reduction reaction (ORR) was prepared in this work. Its high activity for the ORR in alkaline electrolyte was determined using the rotating disk electrode technique, and further confirmed in real alkaline membrane fuel cells. A combination of physicochemical chara...

2004
Chunsheng Wang A. John Appleby David L. Cocke

A new high peak power density alkaline fuel cell ~FC! was fabricated using a metal hydriding ~MH! alloy as the anode electrocatalyst and manganese dioxide as the cathode electrocatalyst. The high-loading MH and MnO2 electrocatalysts not only gave a satisfactory steady-state power output, but also deliver additional power stored in the charged MH and MnO2 electrodes when the overall cell voltage...

Journal: :International Journal of Hydrogen Energy 2021

The realm of alkaline-based fuel cells has with the arrival anionic exchange membrane (AEMFCs) taken a great step to replace traditional liquid electrolyte alkaline (AFCs). following review summarises progress, bottleneck issues and highlights most recent research trends within field. activity catalyst materials greatly advanced, however achieving long-term stability remains challenge. Great AE...

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