The excellent bifunctional catalytic activity of nickel phosphide (Ni2P) for water splitting is reported. Ni2P, an active hydrogen evolving catalyst, is shown to be highly active for oxygen evolution. Only 290 mV of overpotential is required to generate a current density of 10 mA cm(-2) in 1 M KOH. Under oxygen evolving conditions, Ni2P undergoes structural modification to form a Ni2P/NiOx core...

This paper presents a comparative analysis of DC-DC Converters for Renewable Energy System. It has been proved that DC-DC converter with transformer is suitable for Electrolyser application. Due to high input and output voltage differences, the topologies with a high frequency voltage matching transformer are analyzed. The comparative analysis is done with and without Transformer topology in or...

Converting wood to grid quality methane allows to distribute a CO2 free, renewable enery resource in a conventional energy distribution system and use it in transportation applications. Using a previously developed thermo–economic process model for thermochemical production of synthetic natural gas from wood and applying a multi–objective optimisation algorithm, the present paper assesses the p...

Sulphur dioxide (SO2), a known industrial pollutant and pulmonary irritant, is emitted to the atmosphere in excess of 120 Mt per annum. Great strides have been taken to reduce SO2 emissions, but with the growth of specifically China, and to a lesser extent India, it is on the rise again. The electrolysis of aqueous solutions of dissolved SO2 holds huge environmental potential in that SO2 is con...

Abstract The aim of this research is to develop methodology and provide insight into the viability using Open Pore Cellular Foam (OPCF) material in Polymer Electrolyte Membrane (PEM) Electrolysers. Analysis have therefore been carried out on three different types electrolyser geometries. A PEM considered with serpentine, mesh OPCF flow channels, whilst all other physical operational parameters ...

Green hydrogen is viewed as a promising energy carrier for sustainable development goals. However, it has suffered from high costs hindering its implementation. For stakeholder who considers both renewable and electrolysis units, important to exploit the flexibility of such portfolios maximize system operational revenues. To this end, an electrolyser model that can characterize dynamic behavior...