Fuel cells could become smaller, more efficient and cheaper, if carbon nanotubes replaced the expensive platinum catalysts the cells currently rely on.rnFuel cells have been hailed as a saviour of the environment, because they can turn hydrogen and other fuels into electricity cleanly and ...
Challenges in Fuel Cell Technology Hydrogen fuel cells consist of two electrodes: an anode and a cathode, with an electrolyte between them. Pt serves as a fundamental catalyst in low-temperature fuel cells, such as alkaline fuel cells and polymer electrolyte fuel cells (PEFCs). Pt has a high...
Now we learn of another breakthrough: Scientists have devised a new hydrogen catalyst that uses a graphene-based process that out-performs the much more expensive platinum-based catalysts used today. Related Honda believes hydrogen semi trucks will make the case for fuel cells “This initial re...
Related topics: catalyst · fuel cell From sunlight to hydrogen: Researchers unveil structure of photosynthetic catalyst Photosynthesis is one of the most efficient natural processes for converting light energy from the sun into chemical energy vital for life on earth. Proteins called photosystems are ...
The present invention addresses the problem of providing a cathode catalyst for fuel cells which has satisfactory characteristics without requiring the use of platinum.\nThe problem is solved by using nitrogen-doped mesoporous carbon produced, for example, by the hard template method, as a cathode ...
While the ultimate goal is to eliminate platinum from hydrogen fuel cell catalysts entirely, Liu said that the current research opens up a new direction in addressing both fuel cell catalyst activity and durability in a cost-effective way. "Since the new catalysts require only an ultralow amount...
Innovative recent research has suggested that gold-based catalysts are potentially capable of being effectively employed in fuel cells and related hydrogen... D Cameron,R Holliday,D Thompson - 《Journal of Power Sources》 被引量: 272发表: 2003年 Printing of catalyst on the membrane of fuel cells...
Humans and animals obtainenergyfrom the samereactionas fuel cells: they breathe in oxygen and bind hydrogen with it in their cells to form water. In this chemical conversion, energy is released, which the organism uses to live. Therefore, the idea to search in nature for a catalyst as a ...
useful in the energy transition in more ways than one. Platinum – already used to reduce transport emissions with catalytic converters in cars – is also found in PEM fuel cells. These operate like PEM electrolyzers in reverse to combine hydrogen and oxygen, also using platinum as a catalyst....
Platinum (Pt)-based materials are important components of microelectronic sensors, anticancer drugs, automotive catalytic converters and electrochemical energy conversion devices1. Pt is currently the most common catalyst used for the oxygen reduction re