Related Experiment Video
Updated: Feb 22, 2026

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells
Published on: October 20, 2023
Asymmetric Acidic-Alkaline Fuel Cell: Self-Powered Hydrogen Production and Advanced Oxidation of Sulfion and
Pooja J Sharma1, Sanjay A Bhakhar1, C K Sumesh1
1Department of Physical Sciences P. D. Patel Institute of Applied Sciences, Charotar University of Science & Technology, CHARUSAT, Changa, India.
Abstract:
Current technologies of water electrolysis for hydrogen production and purification of industrial wastes are effective for mitigating environmental pollution. However, they are energy-intensive and cause indirect/direct CO2 emissions. Here, we report the asymmetric acid-alkaline hydrazine-water fuel cell (HzWFC) and sulfion-water fuel cell (SWFC), which operate with acidic-hydrogen evolution (HER) at the cathode and alkaline-hydrazine/sulfion oxidation reaction (HzOR/SOR) with zero CO2 emission at the anode. The realization of these necessitates the development of metal organic framework-derived V-CoS self-supported catalysts with optimized electronic structure, desired morphological evolution, regulated charge-transport and optimized adsorption of HzOR/SOR intermediates. Utilizing the electrochemical neutralization energy (ENE) and favourable catalytic performance, the V-CoS catalyst based HzWFC and SWFC generate maximum power density of 46.4 mW/cm2 (at 120 mA/cm2) and 15 mW/cm2 (at 61 mA/cm2), respectively and also, facilitates the H2-production at current density of 240 mA/cm2 and 123 mA/cm2 at zero voltage, respectively. Realizing the ∼99% of practical Faradaic efficiency at current density of 100 mA/cm2, the HzWFC and SWFC enable the co-generation of electricity at a rate of 1.07 kWh/Nm3 and 0.24 kWh/Nm3 and H2 at a rate of 41.2 mL/cm2 h.
More Related Videos
06:32A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
Published on: August 17, 2016
10:15Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
Published on: November 7, 2025
Related Concept Videos
Batteries and Fuel Cells
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
Preparation and Reactions of Sulfides
Anoxygenic Photosynthesis
Reduction of Alkenes: Catalytic Hydrogenation
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
Standard Electrode Potentials