Energy Accumulation by Hydrogen Technologies

Environmental citizenship and public attitudes to hydrogen energy technologies

Some of the principal arguments in the debate about environmental citizenship are examined with reference to the development of hydrogen energy systems. In particular, qualitative evidence is drawn from a study of public attitudes towards hydrogen energy technologies and their perceived risks and benefits. Using data from focus groups in three areas of the UK, it is argued that while there is a...

Water Splitting Technologies for Hydrogen Cogeneration from Nuclear Energy

Efficiency of hydrogen production systems using alternative nuclear energy technologies

Nuclear energy can be used as the primary energy source in centralized hydrogen production through high-temperature thermochemical processes, water electrolysis, or high-temperature steam electrolysis. Energy efficiency is important in providing hydrogen economically and in a climate friendly manner. High operating temperatures are needed for more efficient thermochemical and electrochemical hy...

Advances in Hydrogen Energy Technologies: Oportunities and Challenges in a Hydrogen Economy

Fuel cells have unique technological attributes: efficiency, absence of moving parts and low emissions. The Direct Methanol Fuel Cell (DMFC) has attracted much attention due to its potential applications as a power source for transportation and portable electronic devices. With the advance of micromachining technologies, miniaturization of power sources became one of the trends of evolution of ...

Aerobic Hydrogen Accumulation by a Nitrogen-Fixing Cyanobacterium, Anabaena sp.

Hydrogen evolution by a nitrogen-fixing cyanobacterium, Anabaena sp. strain N-7363, was tested in order to develop a water biophotolysis system under aerobic conditions. A culture of the strain supplemented with carbon dioxide under an air atmosphere evolved hydrogen and oxygen gas, which reached final concentrations of 9.7 and 69.8%, respectively, after 12 days of incubation. Hydrogen uptake a...