Remove Carbon Remove Conversion Remove Low Cost Remove Reference
article thumbnail

Cobalt-doped graphdiyne catalyst for catalytically decomposing ammonia to hydrogen

Green Car Congress

In a paper in the journal Fuel , the researchers report that the Co-doped graphdiyne catalyst achieved nearly complete decomposition of ammonia at 550 ˚C, and the conversion rate remained stable over 18 h of continuous reaction. Graphdiyne (GDY) is a new two-dimensional (2D) carbon allotrope, similar to graphene.

Hydrogen 369
article thumbnail

GWU team suggests C2CNT carbon nanotube composites could amplify reduction of GHG emissions

Green Car Congress

Stuart Licht reports that the addition of carbon nanotubes (CNTs) produced from CO 2 by low-energy C2CNT (CO 2 to CNT) molten electrolysis ( earlier post ) to materials such as concrete or steel not only forms composites with significantly better properties, but amplifies the reduction of CO 2. A) Carbon mitigation with CNT-cement. (B)

Carbon 249
article thumbnail

Harvard team demonstrates new metal-free organic–inorganic aqueous flow battery; potential breakthrough for low-cost grid-scale storage

Green Car Congress

AQDSH 2 refers to the reduced form of AQDS. The two main components—the electrochemical conversion hardware through which the fluids are flowed (which sets the peak power capacity) and the chemical storage tanks (which set the energy capacity)—may be independently sized. Cell schematic. Huskinson et al. Click to enlarge.

Low Cost 374
article thumbnail

ARPA-E adds five new funding topics to FOA to advance critical energy innovation

Green Car Congress

Direct Removal of Carbon Dioxide from Oceanwater (DOC); $2.0 Direct Removal of Carbon Dioxide from Ambient Air (DAC); $2.0 Direct removal of CO 2 from the atmosphere, sometimes referred to as direct air capture (DAC), is the separation of CO 2 at ambient concentration (about 410 parts per million by volume fraction (ppmv)) from air.

Energy 332
article thumbnail

BMW Group, Airbus and Quantinuum present classical/quantum computation study of the ORR in fuel cells

Green Car Congress

Hydrogen is considered a promising energy source for low-carbon and sustainable mobility. However, for wide scale adoption, improvements in the efficiency of hydrogen-to-electricity conversion are required. —Di Paola et al. Individual machines that use this generation of ion traps are designated by the H1-X nomenclature.

BMW 195
article thumbnail

Nitrogen-doped graphene nanoplatelets offer high catalytic performance in fuel cells and solar cells; possible replacement for Pt

Green Car Congress

Researchers in South Korea have developed a simple, low-cost and eco-friendly method of creating nitrogen-doped graphene nanoplatelets (NGnPs) with excellent catalytic performance in both dye-sensitized solar cells and fuel cells to replace conventional platinum (Pt)-based catalysts for energy conversion. —Jeon et al.

Solar 262
article thumbnail

Researchers develop rechargeable hybrid-seawater fuel cell; highly energy density, stable cycling

Green Car Congress

Researchers from Ulsan National Institute of Science and Technology (UNIST) in Korea and Karlsruher Institute of Technology in Germany have developed a novel energy conversion and storage system using seawater as a cathode. mixture of hard carbon or Sn-C, SuperP carbon black as a conductive additive, and poly(vinylidene fluoride) as a binder.

Recharge 285