A redox-reversible iron orthovanadate cathode is demonstrated for a solid oxide electrolyser with up to 100% current efficiency for steam electrolysis. The iron catalyst is grown on spinel-type electronic conductor FeV2O4 by in situ tailoring the reversible phase change of FeVO4 to Fe+FeV2O4 in a reducing atmosphere. Promising electrode performances have been obtained for a solid oxide steam el...

Introduction: The conversion and storage of energy with a high efficiency, especially a high specific energy, will be an important factor in future energy storage technologies. The relatively simple possibility to store hydrogen and oxygen with high specific energy combined with high energy conversion efficiency in fuel cells and electrolyser presents an opportunity for the use of polymer elect...

37 Abstract— This paper presents a comparison of half bridge and full bridge isolated, soft-switched, DC-DC converters for Electrolysis application. An electrolyser is a part of renewable energy system which generates hydrogen from water electrolysis that used in fuel cells. A DC-DC converter is required to couple electrolyser to system DC bus. The proposed DC-DC converter is realized in both f...

The paper presents a new approach to realise a chip integrated rechargeable micro power source. The system combines a self breathing fuel cell with an integrated hydrogen storage and an electrolyser. Connecting the electrolyser to an external energy source, hydrogen will be generated and directly absorbed within the hydrogen storage. Thus the metal hydride hydrogen storage is refilled. The fuel...

The potential for generating green hydrogen by electrolysis (water splitting) has resulted in a substantial amount of literature focusing on lowering the current production cost hydrogen. A significant contributor to this high is requirement precious metals (namely Pt and Ir/Ru (oxides)) catalyse two main reactions involved electrolysis: evolution reaction (HER) oxygen (OER). Herein we overview...

A solar based integrated system for hydrogen and methanol production is investigated. Energy and exergy analyses of a hydrogen production plant, thermodynamic assessment of a methanol synthesis plant, and exergy analysis of the integrated solar based system for hydrogen and methanol production, are performed. The analysis of hydrogen production is performed for the methanol synthesis procedure....

Elcogen is a company providing solid oxide cell and stack solutions for fuel (SOFC) electrolysis (SOEC) applications. Elcogen's are designed to operate at reduced operating temperatures but still high performance affordable cost low degradation level. currently expanding its manufacturing capabilities towards multi-MW annual production levels through factory project. As part of commercializatio...

It was shown about 25 years ago that solid oxide fuel cells (SOFC) could also work in the solid oxide electrolyser cell (SOEC) mode. Electrolysis of both water (steam) and CO2 was demonstrated. During the 1990'ies very little electrolysis work was reported in the open literature, whereas an enormous amount of results on the SOFC R&D appeared. Recently, the increasing interest in hydrogen produc...

A high-performance, durable and low-cost PEM electrolyser that can be produced almost entirely with coated stainless steel parts.