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Although the thermocatalytic ammonia decomposition reaction (ADR) is an effective way to obtain clean hydrogen, it relies on the use of expensive and rare ruthenium (Ru)-based catalysts, making it not sustainable or economically feasible. A complete ammonia conversion to hydrogen was achieved at an economically feasible 450 ?C
An international collaboration of scientists has taken a significant step toward the realization of a nearly “green” zero-net-carbon technology that can efficiently convert CO 2 and hydrogen into ethanol. None of the three components examined in the study is able to individually catalyze the CO 2 -to-ethanol conversion, nor can they in pairs.
Using a hematite photocatalyst, a team led by researchers from Kobe University has succeeded in producing both hydrogen gas and hydrogen peroxide at the same time from sunlight and water. Hydrogen has gained attention as one of the possible next generation energy sources. under 600nm). Mesocrystal technology. Tachikawa et al.
Researchers at Ariel University in Israel have developed a new type of hydrogen generator for “on-demand” use with fuel cells. Hydrogen is produced in a catalytic hydrolysis reaction of sodium borohydride (NaBH 4 ) with ruthenium powder as a catalyst. —Zakhvatkin et al. 1c00367.
Researchers at The Ohio State University have used a chemical looping process to produce hydrogen from hydrogen sulfide gas—commonly called “sewer gas”. Hydrogen sulfide is emitted from manure piles and sewer pipes and is a key byproduct of industrial activities including refining oil and gas, producing paper and mining.
Researchers at MIT have developed a method that could significantly boost the performance of carbon capture and conversion systems that use catalytic surfaces to enhance the rates of carbon-sequestering electrochemical reactions. The movement through water is sluggish, which slows the rate of conversion of the carbon dioxide.
With efficiencies above 90%, Topsoe’s proprietary SOEC electrolyzers offer superior performance in electrolysis of water into hydrogen—e.g., Solid oxide electrolysis cell (SOEC) technology is attractive because of unrivaled conversion efficiencies—a result of favorable thermodynamics and kinetics at higher operating temperatures.
China-based Dongfang Electric Corporation (DEC) reported successful testing of non-desalinated seawater electrolysis technology for hydrogen production powered by offshore wind. The floating hydrogen production platform Dongfu One is sited in an offshore wind farm in East China’s Fujian province. Resources Xie, H.,
The decisive factor for the switch to battery-electric vehicles is the energy cost advantage compared to hydrogen and diesel. Electricity and hydrogen are the two key energy carriers for a low-carbon future, and hydrogen will play a vital role in industry, shipping and synthetic aviation fuels. Plötz (2022).
Engineers from UNSW Sydney (Australia) have successfully converted a diesel engine to run as a dual-fuel hydrogen-diesel engine, reducing CO 2 emissions by more than 85% compared to conventional diesel. In a paper published in the International Journal of Hydrogen Energy, Prof. below the amount produced by the diesel powered engine.
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. Ammonia is by its nature a high-density hydrogen carrier. —Liu et al.
Researchers at the University of Southampton have transformed optical fibers into photocatalytic microreactors that convert water into hydrogen fuel using solar energy. The microstructured optical fiber canes (MOFCs) with photocatalyst generate hydrogen that could power a wide range of sustainable applications. Potter, Daniel J.
Researchers at Stanford University have shown that porous polymer encapsulation of metal-supported catalysts can drive the selectivity of CO 2 conversion to hydrocarbons. CO 2 (black and red) and hydrogen molecules (blue) react with the help of a ruthenium-based catalyst. Chengshuang Zhou, Arun S. Asundi, Emmett D. Hoffman, Sindhu S.
ReactWell , LLC, has licensed a novel waste-to-fuel technology from the Department of Energy’s Oak Ridge National Laboratory to improve energy conversion methods for cleaner, more efficient oil and gas, chemical and bioenergy production. Yang Song is now employed with ReactWell as lead scientist.
Mitsubishi Power Americas and Texas Brine Company are collaborating to develop large-scale long-duration hydrogen storage solutions to support decarbonization efforts across the eastern United States. Long-duration hydrogen storage is a key enabling technology for the transition to a net zero carbon energy future.
The catalyst shows a carbon dioxide conversion through hydrogenation to hydrocarbons in the aviation jet fuel range of 38.2%, with a yield of 17.2%, and a selectivity of 47.8%, and with an attendant low carbon monoxide (5.6%) and methane selectivity (10.4%). In brief, the Fe–Mn–K catalyst shows a CO 2 conversion of 38.2%
Proton ceramic electrochemical reactors can extract pure hydrogen from gas mixtures by electrolytically pumping protons across the membrane at 800 °C. Counterflowing streams balanced heat flows and maintained stable operating conditions that enabled 99% efficiency of hydrogen recovery. Figure courtesy of CoorsTek Membrane Sciences.
and Princeton University’s Andlinger Center for Energy and the Environment have created a scalable photocatalyst that can convert ammonia into hydrogen fuel. This result demonstrates the potential for highly efficient, electrically driven production of hydrogen from an ammonia carrier with earth-abundant transition metals.
Researchers at Pacific Northwest National Laboratory (PNNL), with colleagues from Oregon State University, have developed PNNL a durable, inexpensive molybdenum-phosphide catalyst that efficiently converts wastewater and seawater into hydrogen. If you can produce hydrogen from seawater, the resource pool is pretty much unlimited.
There are two challenges that hinder current conversion techniques from wider adoption: low olefin yield and high production costs. Also, recent approaches to conversion require additional hydrogen, another cost burden. We also know that we could easily over-hydrogenate these molecules, which would not be usable.
Gd alloy can be used for the production of hydrogen storage materials. Measured reversible hydrogen storage capacity for the alloys AZ91 and Mg-10 wt.% The conversion process is possible and easily achievable, they noted. The conversion process is possible and easily achievable, they noted. Resources. respectively.
A team at the University of Pennsylvania is proposing the use of a liquid-organic hydrogen carrier (LOHC)—specifically, 1,2,3,4 -tetrahydroquinoline (THQ)—for use as an endothermic fuel for thermal protection of hypersonic aircraft engines. 1 were obtained, with conversions greater than 80% at 600 °C. earlier this year.
Russian Rosatom State Atomic Energy Corporation and the EDF Group signed a strategic cooperation agreement in March 2021 to develop green hydrogen in Russia and Europe. Hydrogen energy is one of Rosatom’s R&D priorities.
Photocatalytic water splitting has attracted great interest as a means of cost-effective conversion of sustainable solar energy to valuable chemicals. The sources of error and standard reporting protocols for hydrogen evolution rate, light source calibration, and solar-to-hydrogen (STH) efficiency have been revisited and recommended.
The conversion normally requires significant amounts of energy in the form of high heat—a temperature of at least 700 ?C, Carbon monoxide readily combines with hydrogen to produce essential hydrocarbon compounds, such as methane and ethanol, that are often used in industry, said NIST researcher Renu Sharma. —Renu Sharma.
(SoCalGas) introduced an innovative new solar-powered hydrogen generation system during the California Air Resources Board Technology Expo and Symposium at the University of California, Riverside. Research suggests the system could produce 100 kg of hydrogen per day with a more advanced design. Earlier post.).
Researchers at the University of California Santa Barbara have developed catalytic molten metals to pyrolize methane to release hydrogen and to form solid carbon. Bi 0.73 ) achieved 95% methane conversion at 1065°C in a 1.1-meter meter bubble column and produced pure hydrogen without CO 2 or other by-products.
Researchers at the US Naval Research Laboratory (NRL), Materials Science and Technology Division have demonstrated novel NRL technologies developed for the recovery of CO 2 and hydrogen from seawater and their subsequent conversion to liquid fuels. Heather Willauer, NRL research chemist. E-CEM Carbon Capture Skid.
The California Energy Commission has awarded GTI and Sierra Northern Railway nearly $4,000,000 to fund the design, integration, and demonstration of a hydrogen fuel cell switching locomotive to support the Hydrogen Fuel Cell Demonstrations in Rail and Marine Applications at Ports (H2RAM) initiative.
Researchers from the Technical University of Denmark and Haldor Topsoe, with colleagues from the Danish Technological Institute and Sintex have developed a “ disruptive approach to a fundamental process ” by integrating an electrically heated catalytic structure directly into a steam-methane–reforming (SMR) reactor for hydrogen production.
Rice University researchers and colleagues at Princeton and Syzygy Plasmonics have developed a plasmonic photocatalyst for the direct decomposition of hydrogen sulfide gas into hydrogen and sulfur, as an alternative to the industrial Claus process. A paper on the work appears in ACS Energy Letters. Bayles, Henry O. Carter and Naomi J.
A study by a team of researchers from Technische Universität Berlin (TUB) and Fritz-Haber-Institut der Max-Planck-Gesellschaft has found that direct seawater splitting for hydrogen production has substantial drawbacks compared to conventional water splitting and offers almost no advantage. Additionally, H 2 O is needed for water splitting.
An international research group has improved graphene’s ability to catalyze the hydrogen evolution reaction, which releases hydrogen as a result of passing an electronic current through water. The graphene-based electrocatalyst was then used to enhance the release of hydrogen during electrolysis. Resources. Kumatani, C.
The process has also the potential to produce any other type of fuel for transport applications, such as diesel, gasoline or pure hydrogen in a more sustainable way. Aviation Carbon Capture and Conversion (CCC) Fuels Solar Solar fuels' The H 2 :CO molar ratio of the syngas can be controlled in a range from 0.25 Scheffe J.R.,
Ørsted, the world’s leading offshore wind developer, together with the major industrial companies in the North Sea Port cluster, have launched the SeaH2Land vision for a gigawatt scale project to reduce carbon emissions in the Dutch-Flemish industrial cluster with renewable hydrogen.
Reintroducing airships into the world’s transportation mix could contribute to lowering the transport sector’s carbon emissions and can play a role in establishing a sustainable hydrogen based economy, according to a new IIASA-led study. The open-access paper is published in the journal Energy Conversion and Management: X.
Researchers from the Naval Air Warfare Center Weapons Division (NAWCWD) have developed an efficient three-step process for the conversion of cellulosic feedstocks to both a valuable chemical precursor and high-performance jet fuel blendstock. The hydrogenation proceeded with 96% chemoselectivity. Woodroffe & Harvey (2020).
Italy-based Snam, a leading energy infrastructure operator, and Saipem, an Italian multinational oilfield services company, have signed a Memorandum of Understanding to start working together to define and to develop initiatives for green hydrogen production and transport, and for carbon dioxide capture, transport and reuse or storage (CCS and CCU).
A team from Washington State University (WSU) and the Gas Technology Institute have used an ethanol and water mixture and a small amount of electricity in an electrochemical conversion system to produce pure compressed hydrogen. This is a new way of thinking about how to produce hydrogen gas. —Kee et al.
Scientists from the Max Planck Institutes for Chemical Energy Conversion and Coal Research and from the research group Photobiotechnology at Ruhr-Universität Bochum (RUB) have discovered a way of increasing the efficiency of hydrogen production in microalgae by a factor of five by using a combined metabolic engineering approach.
SK E&S and SK Plug Hyverse—a joint venture (JV) formed in January of this year by SK E&S and Plug Power—will work with Korea Southeast Power Generation (KOEN) to cooperate with green hydrogen and green ammonia projects based on renewable energy resources in Korea and abroad.
As defined for the report, HES are related to, but distinct from, colocated resources, which share some characteristics with HES but have more limited opportunities for operational synergies. using electrical or thermal energy to produce hydrogen from water or a methane source). Dimensions that define HES. Source: DOE.
Researchers in Israel have designed a separate-cell photoelectrochemical (PEC) water-splitting system with decoupled hydrogen and oxygen cells for centralized hydrogen production. It addresses the challenges of designing, building, and optimizing the device for assessing large-scale hydrogen generation. Landman et al.
Hyzon Motors, a leading supplier of heavy-duty hydrogen-powered fuel cell electric vehicles, announced a non-binding memorandum of understanding (MoU) with Transform Materials, a provider of renewable hydrogen through its proprietary microwave reactor technology ( earlier post ). —Parker Meeks, Hyzon’s Chief Strategy Officer.
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