The ability of Pelobacter carbinolicus to oxidize electron donors with electron transfer to the anodes of microbial fuel cells was evaluated because microorganisms closely related to Pelobacter species are generally abundant on the anodes of microbial fuel cells harvesting electricity from aquatic sediments. P. carbinolicus could not produce current in a microbial fuel cell with electron donors...

Reversible operation of a microtubular solid oxide fuel cell SOFC with high electrochemical efficiency is reported. These devices can ideally produce hydrogen from electricity and steam solid oxide electrolyser SOE and then use the stored hydrogen to generate electricity and heat SOFC , acting as a storage device for the electrical energy. A fuel-electrode-supported Ni–yttriastabilized zirconia...

The world has a voracious appetite for energy. Abundant, inexpensive resources have fueled technological advances from the Industrial Revolution to the present. Continued growth will require a continued supply of inexpensive energy that is not sustainable with current resources. In addition, concerns about greenhouse-gas emissions from fossil-fuel sources are generating a new set of technologic...

Hydrogen fueled transportation can contribute substantially to the reduction of global carbon emissions. However, production hydrogen through electrolysis creates interdependencies with electricity systems. Therefore, we present a new model which couples supply chain system. We use this analyse case study Germany in 2030. find that if efficient spatially resolved tariffs are applied instead exi...

Hydrogen is a promising supplement in future energy systems with high penetration rates of renewable (RE) generation. As conversion technology between the two secondary carriers, hydrogen and electricity, particularly grid-connected electrolysers, have role to play. During market ramp-up, electrolysers could cause unwanted side-effects through inducing additional CO2 emissions power sector. Sin...

Hydrogen is readily obtained from renewable and non-renewable resources via water splitting by using thermal, electrical, photonic and biochemical energy. The major hydrogen production is generated from thermal energy through steam reforming/gasification of fossil fuel. As the commonly used non-renewable resources will be depleted in the long run, there is great demand to utilize renewable ener...

ITER is an unprecedented collaboration between the European Union, China, India, Japan, South Korea, Russia and the United States. Its ambitious goal is to show that fusing hydrogen nuclei to make helium — the same process that heats up the Sun and powers hydrogen bombs — is a technologically feasible way to produce electricity. The experiment is under construction at a site in St-Paul-lez-Dura...

An energy efficient method of concurrent hydrogen gas and struvite (MgNH(4)PO(4)·6H(2)O) production was investigated based on bioelectrochemically driven struvite crystallization at the cathode of a single chamber microbial electrolysis struvite-precipitation cell (MESC). The MESC cathodes were either stainless steel 304 mesh or flat plates. Phosphate removal ranged from 20% to 40%, with higher...

The recovery of clean energy in the form of methane-containing biogas is starting to receive tremendous attention in South Africa. However, it is unclear whether the transition from standard bio-methane production to waste-based bio-hydrogen production would improve or worsen the environmental and energetic performance as quantified by Life Cycle Assessment (LCA). The results of this study show...