Green Car Congress

DECEMBER 5, 2017

A team led by researchers from Sandia National Laboratories and the University of California, Merced has developed an efficient molybdenum disulfide (MoS 2 ) catalyst for driving the hydrogen evolution reaction (HER). Image courtesy of Sandia National Laboratories) Click to enlarge. —Stanley Chou.

Low Cost 170

Low Cost Hydrogen Production Universal 170

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MAY 4, 2020

A team from the University of Central Florida (UCF) and the Air Force Research Laboratory (AFRL) has demonstrated continuous detonation in a rotating detonation rocket engine (RDRE) ( earlier post ) powered by H 2 /O 2 propellants. Developing this method to characterize the detonation wave dynamics is another contribution of this article.

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Engine Florida Hydrogen Universal 365

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MAY 8, 2015

Researchers from Soochow University in China report that the newly found B 40 —the first experimentally observed all-boron fullerene—when coated with 6 titanium atoms (Ti 6 B 40 ) can store up to 34 hydrogen molecules, corresponding to a maximum gravimetric density of 8.7 wt%. —Dong et al.

Hydrogen 150

Hydrogen Ni-Li Store Universal 150

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AUGUST 1, 2017

Scientists at Rice University and the Lawrence Livermore National Laboratory have predicted and created new two-dimensional electrocatalysts—low-cost, layered transition-metal dichalcogenides (MX 2 ) based on molybdenum and tungsten—to extract hydrogen from water with high performance and low cost.

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Hydrogen Production San Diego Low Cost 150

Green Car Congress

JUNE 17, 2016

A team of researchers at the University of Southern California has developed a robust, reusable iridium catalyst that enables hydrogen gas release from neat formic acid. Formic acid (HCO 2 H, FA) is a hydrogen carrier; it can release hydrogen under mild conditions with only CO 2 as a by-product. Kedzie, Nicholas J.

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MARCH 17, 2015

The Cu-Ti-Ti hollow site binds hydrogen too strongly. copper-titanium catalyst provides a large-surface area for electrocatalytic hydrogen evolution, and improves the mass transport properties. The two Cu-Cu-Ti hollow sites exhibit HBE values close to that of Pt. Click to enlarge.

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Hydrogen Water Delaware Environment 150

Green Car Congress

MARCH 15, 2016

Credit: International Institute for Carbon-Neutral Energy Research (I²CNER), Kyushu University. The array of technologies that I 2 CNER’s research aims to enable includes Solid Oxide Fuel Cells, Polymer Membrane based fuel cells, biomimetic and other novel catalyst concepts, and production, storage, and utilization of hydrogen as a fuel.

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Universal Polymer Fuel Carbon 150

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NOVEMBER 14, 2010

Biomass, a kind of renewable resource that adsorbs CO 2 during its growth, contributes net zero carbon emissions when used to produce hydrogen. Hydrogen can be produced by direct gasification of biomass into syngas. Hydrogen produced from bio-oil provides a new route for use of bio-oil.

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Oil Hydrogen Carbon Store 218

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OCTOBER 7, 2015

A team led by researchers from Sandia National Laboratories has shown that molybdenum disulfide (MoS 2 ), exfoliated with lithiation intercalation to change its physical structure, performs as well as the best state-of-the-art catalysts for the hydrogen evolution reaction (HER) but at a significantly lower cost.

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Low Cost Hydrogen Water Production 150

Green Car Congress

MAY 9, 2011

The steam reforming of oxygenate fuels produced via biomass fermentation, fast pyrolysis, and hydrolysis is a feasible renewable route for hydrogen production, according to a new study by a team from the South China University of Technology (Guangzhou, China) published in the ACS journal Energy & Fuels. Oxygenate fuels, Li et al.

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Hydrogen Renewable Fuel Production 220

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SEPTEMBER 24, 2009

Researchers at the University of Tokyo have developed a new catalyst for the catalytic hydrogenation of carbon dioxide to formic acid with the best reported performance to date. Hydrogenation of carbon dioxide has been widely investigated using transition-metal complexes, especially with rhodium, ruthenium, and iridium catalysts.

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Carbon Hydrogen 2009 Universal 207

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APRIL 18, 2022

To put it another way, instead of splitting water into hydrogen and oxygen with electricity, these two components are joined to make water and electricity The electricity is then utilized to power the car’s drive train, leaving just water as a waste product. The oxygen comes from the air, while the hydrogen comes from a tank.

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Hydrogen Green Cars India 40

Green Car Congress

FEBRUARY 27, 2010

Left, global light-duty fleet in the electric-favoring case; right, the hydrogen-favoring case. In both electric- and hydrogen-favoring cases, availability of low-carbon electricity and hydrogen prolonged the use of petroleum-fueled ICE vehicles. Top, without CCS and CSP; bottom, with CCS and CSP. Credit: ACS, Wallington et al.

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JUNE 11, 2010

A team at the University of Leeds (UK) is investigating hydrogen production from waste tires using a two-stage pyrolysis-gasification reactor and Ni-Mg-Al (1:1:1) catalyst. Catalysts play an important role in pyrolysis-gasification processes for maximizing hydrogen production. Hydrogen production increased from 0.68

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Waste Hydrogen Production Gas 220

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JULY 12, 2010

Researchers at the University of Leeds (UK) have developed a novel nano-Ni/SiO 2 catalyst that appears effective in the production of hydrogen from the steam reforming of ethanol. Williams (2010) Novel Nano-Ni/SiO 2 Catalyst for Hydrogen Production from Steam Reforming of Ethanol. Article ASAP doi: 10.1021/es100912w.

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Hydrogen Production 2010 Environment 186

Green Car Congress

SEPTEMBER 29, 2009

An international team of scientists from the UK, Germany and France have discovered how oxygen stops photosynthetic organisms such as green algae from producing hydrogen. The findings could help advance development of the microbial production of hydrogen from sunlight and water. Professor Fraser Armstrong, Oxford University, co-author.

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Hydrogen Insight Production 2009 210

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DECEMBER 19, 2016

A team of researchers from Missouri University of Science and Technology and National and Kapodistrian University of Athens in Greece have developed a highly efficient transition metal selenide-based coordination complex, [Ni{(SePiPr 2 ) 2 N} 2 ] for oxygen evolution and hydrogen evolution reactions (OER and HER, respectively) in alkaline solution.

Water 150

Water Missouri Greece Hydrogen 150

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DECEMBER 6, 2009

A team from the University of Oxford (UK) and CNRS (France) has developed an optimized system for the photocatalytic production of hydrogen using an hydrogenase and photosensitizer co-attached to a TiO 2 nanoparticle. Article ASAP doi: 10.1021/ja907923r. Tags: Bio-hydrogen Biotech Hydrogen Production.

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Hydrogen Production France Light 246

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MAY 4, 2018

As reported in an open-access paper in Nature Communications, the wafer-level photochemical diode arrays exhibited solar-to-hydrogen efficiency of ~3.3% Previous direct solar water splitters have achieved a little more than 1 percent stable solar-to-hydrogen efficiency in fresh or saltwater. in neutral (pH?~?7.0) Chowdhury et al.

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Water Solar Hydrogen Carbon 186

Green Car Congress

JUNE 3, 2010

Alternatively, oxidation of an aqueous Na 2 SO 3 solution can be carried out for the production of high purity clean hydrogen fuel. Results from using the ultraviolet (UV) photolytic process for production of hydrogen from aqueous Na 2 SO 3 solutions showed that the quantum efficiency of hydrogen production can reach 14.4%

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Sodium Coal Hydrogen Gas 186

Green Car Congress

MARCH 23, 2010

With its low cost, low environmental impact and safety aspects, the Al-air system has potential to serve as a near-term power source for electric vehicles, according to a research team from The University of Hong Kong and Hong Kong Polytechnic University. Energy Fuels , Article ASAP doi: 10.1021/ef901344k. —Wang et al.

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NOVEMBER 6, 2009

GHG analysis for hydrogen from renewable sources (HR) and fossil sources (HF), compared to advanced gasoline ICE vehicles (Scenario G). While these results agree with previous hydrogen infrastructure studies in a general sense (e.g., Credit: ACS, Stephens-Romero et al. Click to enlarge.

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Hydrogen Fuel Gas Vehicles 199

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MAY 19, 2009

Chemists at the University of Illinois have described a catalyst that acts like nature’s most pervasive hydrogen processor by creating a model of the active site found in iron-iron hydrogenase and nickel-iron hydrogenase. In particular, the two hydrogenases function as hydrogen processors, much like platinum. Barton et al.

Hydrogen 150

Hydrogen Illinois Cheap 2009 150

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JUNE 7, 2016

An international team led by researchers at the University of Melbourne has developed a new catalyst system for the efficient removal of CO 2 from formic acid (HO 2 CH), resulting in the production of CO 2 and H 2 at a low temperature of 70 °C. —Zavras et al. Zavras et al. Click to enlarge. —Professor O’Hair.

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NOVEMBER 2, 2009

Fullerenes can drive hydrogenation under mild conditions. Researchers at Nanjing University in China have shown that fullerenes (cage-like, all-carbon nanostructures) can function effectively as novel non-metal hydrogenation catalysts. Article ASAP doi: 10.1021/ja9061097. Credit: ACS, Li and Xu. Click to enlarge.

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Hydrogen Oil Pollution Carbon 170

Green Car Congress

DECEMBER 12, 2016

A research team from University of Western Ontario, McMaster University and Beijing Computational Science Research Center has developed an effective synthesis method to produce isolated single platinum (Pt) atoms and clusters for use as catalysts for the hydrogen evolution reaction (HER) in water splitting to produce hydrogen.

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Cars That Think

SEPTEMBER 17, 2021

This article is part of our exclusive IEEE Journal Watch series in partnership with IEEE Xplore. More ambitiously, some are developing hydrogen-powered trains, which rather than emitting greenhouse gases, only produce water vapor and droplets. But, producing electricity from hydrogen comes with its own challenges. All aboard!

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Emissions Fuel Convert Hydrogen 80

Green Car Congress

MARCH 15, 2009

Two pressures used for the rehydriding step (which affects the amount of hydrogen desorbed in the second cycle) are highlighted by color: high pressure experiments are blue; lower pressure experiments are red. The substrate was found to have a dramatic effect on the hydrogen removal energy. Credit: ACS. Click to enlarge. wt% over 8 h.

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Green Car Congress

JULY 30, 2014

Researchers from the University of Illinois at Chicago (UIC) have identified molybdenum disulfide as a promising cost-effective substitute for noble metal catalysts for the electrochemical reduction of carbon dioxide. The new catalyst produces syngas, a mixture of carbon monoxide plus hydrogen. —Mohammad Asadi.

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Conversion CO2 Illinois Carbon 239

Green Car Congress

MARCH 14, 2017

A team of scientists at the University of Cambridge has reported the light-driven photoreforming of cellulose, hemicellulose and lignin to H 2 using semiconducting cadmium sulfide quantum dots in alkaline aqueous solution. Wakerley, Moritz F. Kuehnel, Katherine L. Orchard, Khoa H. Ly, Timothy E. 2017.21.

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Light Solar Conversion Hydrogen 236

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JUNE 20, 2009

Concept for hydrogen gas coproduction from cellulosic ethanol byproduct streams. Researchers at Oregon State University have demonstrated the gasification of water-soluble biomass constituents in supercritical water in a microchannel reactor under isothermal, continuous flow condition at short residence times to produce a hydrogen-rich gas.

Water 150

Water Hydrogen Production Conversion 150

Green Car Congress

JANUARY 15, 2016

Researchers at the University of Delaware, with a colleague at the Beijing University of Chemical Technology, have developed a composite catalyst—nickel nanoparticles supported on nitrogen-doped carbon nanotubes—that exhibits hydrogen oxidation activity in alkaline electrolyte similar to platinum-group metals.

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Low Cost Fuel Delaware Hydrogen 150

Green Car Congress

MARCH 16, 2010

Materials scientists at the University of Wisconsin-Madison have discovered a phenomenon—the direct conversion of mechanical energy to chemical energy—which they termed the piezoelectrochemical (PZEC) effect. They then applied the PZEC effect to generate hydrogen and oxygen via direct water splitting. Click to enlarge.

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Water Waste Hydrogen Energy 199

Cars That Think

SEPTEMBER 30, 2022

He gave the example of a visitor to the University of Oxford who sees colleges and a splendid library and then asks, “But where is the university?” The category mistake is obvious: A university is an institution, not a collection of buildings. Such shares are comparable only to the spending that was required to win World War II.

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Climate Fusion Universal Global 88

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SEPTEMBER 20, 2016

A team of researchers from the University of Houston and the California Institute of Technology has developed an active and durable earth-abundant transition metal dichalcogenide-based hybrid catalyst for water-splitting that exhibits high hydrogen evolution activity approaching the state-of-the-art platinum catalysts.

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Houston Water Hydrogen Hybrid 150

Cars That Think

DECEMBER 4, 2023

This sponsored article is brought to you by NYU Tandon School of Engineering. The first two pathways directly substitute fossil fuel-produced heat (which facilitates the reactions inherent in chemical production) with electricity or electrochemically generated hydrogen.

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Industrial Industry DC Engine 79

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JULY 20, 2018

Engineers at the University of California San Diego have shed new light on the atomic-level mechanism of the sulfur embrittlement of nickel, a classic problem that has puzzled the scientific community for nearly a century. Examples include oxygen, sulfur, phosphorus and hydrogen embrittlement of other metals and alloys.

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