Rice U team creates low-cost, high-efficiency integrated device for solar-driven water splitting; solar leaf

Green Car Congress

Rice University researchers have created an efficient, low-cost device that splits water to produce hydrogen fuel. The current flows to the catalysts that turn water into hydrogen and oxygen, with a sunlight-to-hydrogen efficiency as high as 6.7%.

2020 227

Exeter team develops low-cost photoelectrode for spontaneous water-splitting using sunlight

Green Car Congress

Researchers at the University of Exeter (UK) have developed a novel p-type LaFeO 3 photoelectrode using an inexpensive and scalable spray pyrolysis method. The nanostructured photoelectrode results in spontaneous hydrogen evolution from water without any external bias applied with a faradaic efficiency of 30% and excellent stability. The greatest challenge is to develop a suitable technology for large scale and cost effective solar fuel production to compete with fossil fuel.

2018 278

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Trending Sources

New low-cost and high-performance multinary intermetallic compound as active electrocatalyst for hydrogen production

Green Car Congress

A team comprising scientists who specialize in structure materials at City University of Hong Kong (CityU) has developed a high-performance electrocatalyst based on an innovative concept originally for developing alloys.

2020 212

WSU team develops highly-efficient, low-cost nickel-iron nanofoam for OER for water splitting

Green Car Congress

Researchers at Washington State University, with colleagues at Argonne National Laboratory and Pacific Northwest National Laboratory, have combined inexpensive nickel and iron in a very simple, five-minute process to create large amounts of a high-quality catalyst required for water splitting. WSU researchers can create large amounts of inexpensive nanofoam catalysts that can facilitate the generation of hydrogen on a large scale by water splitting.

2018 174

EPFL team develops low-cost water splitting cell with solar-to-hydrogen efficiency of 12.3%

Green Car Congress

A team led by Dr. Michael Grätzel at EPFL (Ecole Polytechnique Fédérale de Lausanne) in Switzerland has developed a highly efficient and low-cost water-splitting cell combining an advanced perovskite tandem solar cell and a bi-functional Earth-abundant catalyst. The combination of the two delivers a water-splitting photocurrent density of around 10 milliamperes per square centimeter, corresponding to a solar-to-hydrogen efficiency of 12.3%.

2014 235

HyperSolar reaches 1.25 V for water-splitting with its self-contained low-cost photoelectrochemical nanosystem

Green Car Congress

volts (V) of water-splitting voltage with its novel low-cost electrolysis technology. The theoretical minimum voltage needed to split water molecules into hydrogen and oxygen is 1.23 V or more is generally needed because of the low reaction kinetics. HyperSolar’s research is centered on developing a low-cost and submersible hydrogen production particle that can split water molecules using sunlight, emulating the core functions of photosynthesis.

2014 214

Penn State, FSU team develops low-cost, efficient layered heterostructure catalyst for water-splitting

Green Car Congress

A team of scientists from Penn State and Florida State University have developed a lower cost and industrially scalable catalyst consisting of synthesized stacked graphene and W x Mo 1–x S 2 alloy phases that produces pure hydrogen through a low-energy water-splitting process. The researchers suggested that their strategy offers a cheap and low temperature synthesis alternative able to replace Pt in the hydrogen evolution reaction (HER).

2017 163

GWU team demonstrates highly scalable, low-cost process for making carbon nanotube wools directly from CO2

Green Car Congress

Researchers at George Washington University led by Dr. Stuart Licht have demonstrated the first facile high-yield, low-energy synthesis of macroscopic length carbon nanotubes (CNTs)—carbon nanotube wool—from CO 2 using molten carbonate electrolysis ( earlier post ). This synthesis consumes only CO 2 and electricity, and is constrained only by the cost of electricity. The process is constrained by the (low) cost of electricity.

2017 250

UTSA, SwRI researchers developing low-cost method to treat fracking water using biochar

Green Car Congress

Researchers at The University of Texas at San Antonio (UTSA) and Southwest Research Institute (SwRI) are investing $200,000 in new research to develop a low-cost method to treat flow-back water following hydraulic fracturing. Over the next year, the researchers will optimize an inexpensive charcoal product called biochar for the water treatment solution. It will be tested on water samples from the Eagle Ford Shale.

2013 188

Stanford team reports new low-cost, non-precious metal catalyst for water splitting with performance close to platinum

Green Car Congress

Researchers at Stanford University, with colleagues at Oak Ridge National Laboratory and other institutions, have developed a nickel-based electrocatalyst for low-cost water-splitting for hydrogen production with performance close to that of much more expensive commercial platinum electrocatalysts. This marked the first time anyone has used non-precious metal catalysts to split water at a voltage that low, he added. Pennycook, University of Tennessee.

2014 232

BNL Researchers develop low-cost, efficient, non-noble metal electrocatalyst to produce hydrogen from water

Green Car Congress

A team of researchers led by Dr. James Muckerman at the US Department of Energy’s (DOE) Brookhaven National Laboratory (BNL) have developed a new class of high-activity, low-cost, non-noble metal electrocatalyst that generates hydrogen gas from water. Splitting water (H 2 O) into oxygen (O 2 ) and hydrogen (H 2 ), requires external electricity and an efficient catalyst to break chemical bonds while shifting around protons and electrons.

2012 237

MIT engineers develop process that can treat produced water from gas wells at relatively low cost

Green Car Congress

A new desalination process developed by engineers at MIT could treat produced water—deep water, often heavily laden with salts and minerals—from natural gas wells at relatively low cost. Lienhard V, and collaborators at King Fahd University of Petroleum and Minerals (KFUPM) in Saudi Arabia. The water and other fluids used to open wells through hydraulic fracturing are a somewhat different matter, requiring other kinds of treatment and disposal.

2013 190

Sandia team boosts hydrogen production activity by molybdenum disulfide four-fold; low-cost catalyst for solar-driven water splitting

Green Car Congress

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. The improved catalyst has already released four times the amount of hydrogen ever produced by MoS 2 from water. Water splitting is a challenging reaction.

2015 188

Bio-inspired molybdenum sulfide catalyst offers low-cost and efficient photo-electrochemical water splitting to produce hydrogen

Green Car Congress

The optimized photo-electrochemical water splitting device uses light absorbers made of silicon arranged in closely packed pillars, dotted with tiny clusters of the new molybdenum sulfide catalyst. Damsgaard, Thomas Pedersen and Ole Hansen, Technical University of Denmark. An alternative, clean method is to make hydrogen fuel from sunlight and water via a photo-electrochemical (PEC, or water-splitting) process.

2011 271

Columbia team develops simple, low-cost, scaleable membraneless electrolyzer fabricated with 3D printing for H2 production

Green Car Congress

Researchers at Columbia University are investigating the use of membraneless electrochemical flow cells for hydrogen production from water electrolysis that are based on angled mesh flow-through electrodes. Electrolyzers, which use electricity and water to produce hydrogen and oxygen, are well-established commercially available technologies, but the cost of producing H 2 by water electrolysis is currently too expensive.

2016 183

Researchers demonstrate use of 3D printing to produce and operate light-weight, low-cost electrolyzers

Green Car Congress

A team at the University of Glasgow has demonstrated the production and operation of a PEM electrolyzer constructed from silver-coated 3D-printed components fabricated from polypropylene. The use of 3D printing allows construction of light-weight, low-cost electrolyzers and the rapid prototyping of flow field design. Flow plates which separate each cell in the electrolyzer stack and which are machined with a flow path for circulation of the water.

2014 224

New low-cost bio-inspired nanostructured MoS2 catalyst performs almost as efficiently as Pt for hydrogen production

Green Car Congress

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). Despite the various merits of MoS 2 , its functional performance remains inferior to that of Pt due to comparatively small active site concentrations as well as its relatively low electrical conductivity. Right now, very low-voltage electricity does the job.

2017 163

MIT team outlines path to low-cost solar-to-fuels devices; the artificial leaf

Green Car Congress

The new analysis follows up on 2011 research that produced a proof of concept of an artificial leaf—a small device that, when placed in a container of water and exposed to sunlight, would produce bubbles of hydrogen and oxygen. The original demonstration leaf in 2011 had low efficiencies, converting less than 4.7% Because a single Si junction has insufficient potential to drive water splitting, it cannot be used for direct solar-to-fuels conversion.

2013 195

New nickel-gallium catalyst could lead to low-cost, clean production of methanol; small-scale, low-pressure devices

Green Car Congress

Scientists from Stanford University, SLAC National Accelerator Laboratory and the Technical University of Denmark have identified a new nickel-gallium catalyst that converts hydrogen and carbon dioxide into methanol at ambient pressure and with fewer side-products than the conventional catalyst. In their paper, they suggested that this is a first step towards the development of small-scale low-pressure devices for CO 2 reduction to methanol.

2014 221

Researchers develop technique to create new tailored molecule with high density of active catalytic sites; potential low-cost alternative to platinum for splitting water

Green Car Congress

This technique holds promise for the creation of catalytic materials with high densities of active sites that can serve as effective low-cost alternatives to platinum for generating hydrogen gas from water that is acidic. However, recent studies have shown that in its nanoparticle form, molybdenite also holds promise for catalyzing the electrochemical and photochemical generation of hydrogen from water.

2012 195

New nanoparticle copper compound cathode could enable low-cost, long-life and high-power potassium-ion batteries for grid storage

Green Car Congress

Stationary energy storage systems that can operate for many cycles, at high power, with high round-trip energy efficiency, and at low cost are required. Cost is a greater concern. We decided we needed to develop a new chemistry if we were going to make low-cost batteries and battery electrodes for the power grid. The researchers chose to use a water-based electrolyte. A team at Stanford led by Prof.

2011 253

University of Houston team demonstrates new efficient solar water-splitting catalyst for hydrogen production

Green Car Congress

Researchers from the University of Houston (UH) have developed a cobalt(II) oxide (CoO) nanocrystalline catalyst that can carry out overall water splitting with a solar-to-hydrogen efficiency of around 5%. The project involved researchers from UH, along with those from Sam Houston State University, the Chinese Academy of Sciences, Texas State University, Carl Zeiss Microscopy LLC, and Sichuan University.

2013 228

ARPA-E announces $11M for innovations in energy-water processing and agricultural sensing technologies; fourth, fifth OPEN+ cohorts

Green Car Congress

The US Department of Energy’s Advanced Research Projects Agency-Energy (ARPA-E) announced $11 million in funding for 7 projects in the fourth and fifth cohorts of the agency’s OPEN+ program: Energy-Water Technologies and Sensors for Bioenergy and Agriculture. Energy-Water cohort teams will develop new, energy-efficient processing technologies for industrial (particularly oil and gas) and municipal wastewater. Energy-Water Technologies cohort. ARPA-E Sensors Water

2019 163

Rice University lab develops dual-surface graphene electrode to split water into hydrogen and oxygen

Green Car Congress

Researchers in the Rice University lab of chemist James Tour have produced dual-surface laser-induced graphene (LIG) electrodes on opposing faces of a plastic sheet that split water into hydrogen on one side and oxygen on the other side. The overpotential reaches 100 mA/cm 2 for HER and OER is as low as 214 and 380 mV with relatively low Tafel slopes of 54 and 49 mV/dec, respectively. LIG itself is inert, so turning it into a water splitter involves a few more steps.

2017 150

New aqueous rechargeable lithium battery shows good safety, high reliability, high energy density and low cost; another post Li-ion alternative

Green Car Congress

Researchers from Fudan University in China and Technische Universität Chemnitz in Germany have developed an aqueous rechargeable lithium battery (ARLB) using coated Li metal as the anode. The battery, which can be low cost and reliable in terms of safety, provides another chemistry for post Li-ion batteries, they suggest, and with higher practical energy densities than Li-air systems for supporting applications including electric vehicles and large-scale grid energy storage.

2013 237

Iowa State researchers developing low-cost thermochemical process to produce sugars from biomass for bio-fuels and -chemicals; pyrolytic molasses

Green Car Congress

Iowa State University (ISU) researchers have developed technologies to efficiently produce, recover and separate sugars from the fast pyrolysis of biomass. ” Low-cost sugars from biomass are a key enabler for many production pathways for bio-based fuels and chemicals. separate sugars from the heavy fractions of bio-oil using a simple water-washing process.

2011 174

SunHydrogen extends research agreement with University of Iowa; development of Gen 2 multi-junction nanoparticles for hydrogen production

Green Car Congress

SunHydrogen , the developer of a technology to produce renewable hydrogen using sunlight and water, has extended its sponsored research agreement with the University of Iowa through 31 August 2020.

2020 212

DOE awarding $35M to 11 projects for hydrokinetic turbine development; ARPA-E SHARKS

Green Car Congress

Hydrokinetic energy is an abundant renewable resource that can boost grid resiliency and reduce infrastructure vulnerability, but it is currently a cost prohibitive option compared to other energy generating sources. The University of Michigan. University of Washington.

2020 344

SwRI, UTSA seek to combine reverse water-gas shift and Fischer Tropsch synthesis in single reactor to produce low-carbon hydrocarbon fuels

Green Car Congress

Southwest Research Institute and The University of Texas at San Antonio (USTA) are collaborating to combine two catalytic processes into a single reactor, with the overall goal of recycling carbon from COCO 2 2 to produce low-cost hydrocarbon fuels. Combining the functionality of these two catalytic processes, reverse water-gas shift and Fischer-Tropsch synthesis, into a single reactor would simplify the process and increase its economic viability.

Carbon 174

US/China team develops robust, stable Ni/Fe OER catalyst for water-splitting at low overpotentials

Green Car Congress

A team from the University of Houston and Hunan Normal University in China has developed an active and durable oxygen evolution reaction (OER) catalyst for water splitting that meets commercial crtieria for current densities at low overpotentials. The researchers said that their discovery sets the stage for large-scale hydrogen production by water splitting using excess electrical power whenever and wherever available.

2018 163

UH team develops new, highly efficient and durable OER catalyst for water splitting

Green Car Congress

Researchers at the University of Houston have developed a catalyst—composed of easily available, low-cost materials and operating far more efficiently than previous catalyst—that can split water into hydrogen and oxygen. This represents an activity enhancement by a factor of 49 in boosting water oxidation at 300 mV relative to the state-of-the-art IrO 2 catalyst.

2017 174

University of Tennessee to head $250M advanced composites manufacturing institute; Ford, Honda and Volkswagen members

Green Car Congress

The Department of Energy and a consortium of 122 companies, nonprofits, and universities led by the University of Tennessee-Knoxville will invest more than $250 million—$70 million in federal funds and more than $180 million in non-federal funds—to launch a Manufacturing Innovation Institute for Advanced Composites—the fifth institute to be awarded of the eight national institute competitions launched earlier ( earlier post ).

2015 204

KAUST team alters atomic composition of MoS2 to boost performance as water-splitting catalyst for H2 production

Green Car Congress

Researchers at KAUST have developed and used a novel way of increasing the chemical reactivity of a two-dimensional molybdenum disulfide material to produce a cheap and effective catalyst for water splitting to produce hydrogen. One route to hydrogen generation is by electrolysis: passing an electrical current through water via two electrodes to cause a chemical reaction that breaks the water molecule into its component hydrogen and oxygen atoms.

2017 200

Stanford team develops new low-voltage single-catalyst water splitter for hydrogen production

Green Car Congress

Researchers at Stanford University have developed a new low-voltage, single-catalyst water splitter that continuously generates hydrogen and oxygen. In the reported study, the new catalyst achieved 10 mA cm −2 water-splitting current at only 1.51 V Currently, the state-of-the-art catalysts to split water are IrO 2 and Pt for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), respectively, with ~1.5 V

2015 197

Researchers produce hydrogen from water and charcoal mix at room temperature using laser pulses

Green Car Congress

Researchers at Wakayama University in Japan have produced a mixture of hydrogen and carbon monoxide gas by irradiating a mixture of carbon powder and distilled water with intense nanosecond laser pulses at room temperature. Photographs of a bottled mixture of Bincho-tan powder and water (a) before, (b) during, and (c) after irradiation. this contribution, we report the optically induced activity of a well-known material, carbon powder, to generate hydrogen from water.

2013 203

Researchers develop free-standing nanowire mesh for direct solar water-splitting to produce H2; new design for “artificial leaf”

Green Car Congress

The mesh with BiVO 4 nanowire photoanode for water oxidation and Rh-SrTiO 3 nanowire photocathode for water reduction produces hydrogen gas without an electron mediator. Researchers from UC Berkeley, Lawrence Berkeley National Laboratory and Nanyang Technological University, Singapore have developed a new technology for direct solar water-splitting—i.e., When immersed in water with visible light irradiation (? ?

2014 230

BIRD Energy to invest $6.4M in Israel-US projects; biomass, fuel cells, natural gas, water-energy nexus and energy efficiency technologies

Green Car Congress

million, which includes $9 million of cost share from the companies selected for funding. Sderot, Israel) and Brayton Energy, LLC (Hampton, NH), will develop a low cost and high efficiency solid biomass and solid waste fueled electricity generation system. Ramot at Tel-Aviv University Ltd. Qualified projects must contribute at least 50% to project costs and commit to repayments if the project leads to commercial success.

2019 163

Agilent Technologies and University of Houston collaborate to advance petroleum research

Green Car Congress

and the University of Houston will work together to further understanding of the geology and composition of crude oil. In addition, improvements in the methods used to characterize crude oil will allow it to be processed more efficiently, which can improve the yield from each barrel and lower the cost of refined products. Agilent Technologies Inc.

New photoelectrode with enhanced visible light absorption for improved solar water-splitting for hydrogen production

Green Car Congress

A team of researchers at Ulsan National Institute of Science and Technology (UNIST), Korea University, and the Korea Advanced Institute of Science and Technology (KAIST) has developed a new type of multilayered (Au NPs/TiO 2 /Au) photoelectrode that could boost the ability of solar water-splitting to produce hydrogen. Photocatalytic water splitting to produce molecular hydrogens and oxygen in artificial photosynthetic system has been practiced in laboratories for decades.

2016 150

Rochester researchers demonstrate robust photogeneration of hydrogen in water using semiconductor nanocrystals and a nickel catalyst

Green Car Congress

Researchers at the University of Rochester (New York) have developed a robust and highly active system for solar hydrogen generation in water using semiconductor nanocrystals (NCs) and a nickel catalyst. We report here a system that provides light-driven H 2 production with exceptional longevity, maintaining its high activity with no decrease for over two weeks using water as solvent. The nanocrystals were capped with DHLA (dihydrolipoic acid) to make them water-soluble.

2012 200

NCSU team develops catalyst for thermal hybrid water-splitting and syngas generation with exceptional conversion; H2 gas and liquid fuels

Green Car Congress

Researchers at North Carolina State University have developed a highly effective new perovskite-promoted iron oxide redox catalyst for a hybrid solar-redox scheme they had proposed earlier for partial oxidation and water-splitting of methane. We’re excited about the new material and process because it converts water, inexpensive natural gas and clean, renewable solar energy into valuable syngas and hydrogen fuels.

2015 183

New Water Oxidation Catalyst Could Boost Potential for Solar Production of Hydrogen

Green Car Congress

Chemists from Emory University and the Paris Institute of Molecular Chemistry have developed a stable and fast homogeneous water oxidation catalyst (WOC), considered a crucial component for generating hydrogen using only water and sunlight, that is easily prepared from readily available salts and oxides of earth abundant elements. A viable abiological water splitting system—i.e., Developing a viable water oxidation catalyst (WOC) has proven particularly challenging.

2010 214

University of Florida IFAS, Buckeye Technologies and Myriant Partner on Research and Demonstration Cellulosic Biorefinery

Green Car Congress

The University of Florida’s Institute of Food and Agricultural Sciences (UF IFAS), and Myriant Technologies LLC (formed by BioEnergy International, LLC) are planning a research and demonstration plant that will explore ways to harness byproducts from some of the most promising cellulosic ethanol techniques to make bio-derived versions of petroleum products. The project will seek to combine several technologies developed by Dr. Lonnie Ingram at the University of Florida.

2009 150