Cheap Sensors for Smarter Farmers

Cars That Think

Depending on factors such as how the sun hits the ground, the amount of water or the fertilizer needed could vary patch by patch. With the new, cheap sensors, farmers will be able to collect data on their farms without worrying about the variability.

Cheap 113

Looking to get in a hybrid for cheap? Used Toyota Prius 1.5 HSD 2004-2009 Review

Green Car Congress

I knew I wanted something for her that was cheap to maintain, had a reliable automatic transmission, came with cruise control, AC. Sometimes the engine water pump might leak. It is something very cheap to fix and to inspect. by BLNT, PriusPodcast.com.

2020 327
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ICL researchers develop new membrane-based system for cheap, efficiently made biofuels

Green Car Congress

In contrast to water, the extractant does not form a heterogeneous azeotrope with n-butanol, and the overall energy consumption of for n-butanol production is 3.9 In their labs at Imperial, researchers investigated the performance of several thin-film composite membranes and settled on one which can block the transport of extractant and water, allowing only the biofuel to travel through.

2020 257

Efficient recovery of lithium from spent LiFePO4 batteries via air oxidation–water leaching at room temperature

Green Car Congress

Researchers in China report using air oxidation–water leaching to recover lithium selectively from spent LiFePO 4 (LFP) material, in which the high leaching efficiency of lithium and the good separation effect of lithium and iron were achieved simultaneously. To address these problems in the previous works during the selective lithium recovery from the spent LFP batteries, it is significant to develop an oxidant that is cheap, green, and efficient as well to replace the existing oxidants.

Water 167

UNIST team develops novel hydrogen production process using biomass oxidation instead of water oxidation as electron source

Green Car Congress

Korea’s Ulsan National Institute of Science and Technology (UNIST) have developed a novel process for the production of hydrogen using various types of biomass, including lignin, as an efficient alternative to water oxidation as an electron source. Researchers at S.

2020 301

Simple, Cheap and Portable: A Filter-free Desalination System for a Thirsty World

Cars That Think

A Portable Desalination System Makes Water Potable—Without a Filter Payal Dhar (Freelance Blogger) MIT researchers have developed a prototype of a suitcase-size device that can turn seawater into safe drinking water. So we can go [straight] from seawater to drinkable water.”

Cheap 103

Oleophobic hydrophobic magnetic sponge selectively soaks up oil, sparing water and wildlife

Green Car Congress

A Northwestern Engineering-led team has developed a highly porous smart sponge that selectively soaks up oil in water. Skimmers don’t work in rough waters or with thin layers of oil. The OHM sponge consistently absorbed up to 30 times its weight in oil, leaving the water behind.

2020 217

How Cheap Is Too Cheap For A Car? Indian Automakers Test The Water

Green Car Reports

How do you solve a problem like getting a nation of low income people onto the roads? That's the question that Indian carmakers Tata and Bajaj, among others, are trying to answer. Indian automotive mogul and man at the helm of Jaguar Land Rover, Ratan Tata, tried to revolutionize Indian transport with the Tata Nano. Bajaj has just launched a

Cheap 74

New nanolithia cathodes may address technical drawbacks of Li-air batteries; scalable, cheap and safer Li-air battery system

Green Car Congress

You need large auxiliary systems to remove the carbon dioxide and water, and it’s very hard to do this.” Overall, the new battery system is “ very scalable, cheap, and much safer ” than lithium-air batteries, Li says.

2016 163

Japan team reports pathway to green ammonia: photocatalytic conversion of nitrogen with water

Green Car Congress

Researchers in Japan report that a commercially available TiO 2 with a large number of surface oxygen vacancies, when photo-irradiated by UV light in pure water with nitrogen—successfully produces ammonia (NH 3 ). This is, however, lower than that of natural photosynthesis (0.1%) and artificial photosynthesis such as overall water splitting and H 2 O 2 production (0.2%).

2017 163

Solar-to-Hydrogen Water Splitter Outlasts Next Best Tech By 14x

Cars That Think

To split water into hydrogen on a large scale, we need technologies that are sustainable, efficient, scalable and durable. By contrast, the sustainable solar-to-hydrogen approach has concentrated on photoelectrochemical (PEC) water splitting.

Solar 101

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

UCSC team develops high-performance nanostructured composite catalyst for water-splitting to produce hydrogen

Green Car Congress

A low-cost, nanostructured composite material developed by researchers at UC Santa Cruz has shown performance comparable to Pt/C as a catalyst for the electrochemical splitting of water to produce hydrogen. Despite electrocatalytic performance comparable to that of commercial platinum catalysts, researchers still have a long way to go to achieve cheap and efficient hydrogen production, Chen noted.

2018 163

Berkeley team develops host-guest nanowires for efficient water splitting and solar energy storage

Green Car Congress

The team reports on their host-guest system of Ta:TiO 2 |BiVO 4 as a photoanode for use in solar water splitting cells in an open-access paper in the journal ACS Central Science. The host–guest nanowire architecture allows for simultaneously high light absorption and carrier collection efficiency for efficient solar water oxidation. An example of such a method is the production of hydrogen by photoelectrochemical (PEC) water splitting.

2016 174

Univ. Houston, Caltech team develops new earth-abundant, cost-effective catalyst for water-splitting

Green Car Congress

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. In this case, the current “splits” the water, converting it to hydrogen at the cathode.

2016 180

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

KTH team develops new cost-effective water-splitting electrocatalyst for H2 production

Green Car Congress

Researchers at KTH Royal Institute of Technology in Stockholm have developed a new cost-effective electrocatalyst for water-splitting to produce hydrogen. monolayer of nickel–vanadium-layered double hydroxide shows a current density of 27 mA cm −2 (57 mA cm −2 after ohmic-drop correction) at an overpotential of 350 mV for water oxidation. Water splitting is considered one of the most promising strategies to produce chemical fuels such as hydrogen.

2016 150

An abundant and inexpensive water-splitting photocatalyst with low toxicity active in visible light

Green Car Congress

Researchers at Japan’s National Institute for Materials Science (NIMS) have discovered a new photocatalyst, Sn 3 O 4 , which facilitates the production of hydrogen fuel from water, using sunlight as an energy source. Many water-splitting photocatalysts, such as titanium dioxide (TiO 2 ), can decompose water and produce hydrogen fuel when absorbing ultraviolet light.

2014 159

EPFL/Technion team develops “champion” nanostructures for efficient solar water-splitting to produce hydrogen

Green Car Congress

Fe 2 O 3 (hematite) electrodes that achieve the highest photocurrent of any metal oxide photoanode for photoelectrochemical water-splitting under 100?mW?cm The whole point of our approach is to use an exceptionally abundant, stable and cheap material: rust. Leroy, Maurin Cornuz, Francesco Stellacci, Cécile Hébert, Avner Rothschild and Michael Grätzel (2013) Identifying champion nanostructures for solar water-splitting.

2013 194

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

Green Car Congress

The improved catalyst has already released four times the amount of hydrogen ever produced by MoS 2 from water. The idea was to understand the changes in the molecular structure of molybdenum disulfide, so that it can be a better catalyst for hydrogen production: closer to platinum in efficiency, but earth-abundant and cheap. Molly is dirt cheap and abundant. Water splitting is a challenging reaction.

2015 180

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 229

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. An alternative, clean method is to make hydrogen fuel from sunlight and water via a photo-electrochemical (PEC, or water-splitting) process. When sun hits the PEC cell, the solar energy is absorbed and used for splitting water molecules into its components, hydrogen and oxygen.

2011 263

Researchers from MIT and Sun Catalytix develop an artificial leaf for solar water splitting to produce hydrogen and oxygen

Green Car Congress

Researchers led by MIT professor Daniel Nocera have produced an “artificial leaf”—a solar water-splitting cell producing hydrogen and oxygen that operates in near-neutral pH conditions, both with and without connecting wires. Placed in a container of water and exposed to sunlight, the device quickly begins to generate oxygen from one side and hydrogen bubbles from the other. (A) Plot of the efficiency vs. time for a wired configuration under AM 1.5 illumination.

2011 226

DOE and NSF Award $2.5M for Research into New Materials for Photosplitting Water to Produce Hydrogen

Green Car Congress

million to identify new materials that will efficiently absorb sunlight and split water into hydrogen. Once promising materials have been identified, we’ll research how to create nano-scale structures of that material that enhance the intrinsic properties of the material for light-absorption and water-splitting chemistry. Mullins said that researchers have studied water splitting using photoelectrochemistry for the past 40 years and progress has been made.

2009 159

Topsoe and First Ammonia sign 5GW electrolyzer agreement for green ammonia

Green Car Congress

With their cutting edge SOEC electrolyzers and industry leading ammonia synthesis, we will develop facilities around the world to produce millions of tons of green ammonia from water and air. Green ammonia has the highest volumetric energy density out of all the hydrogen-based energy sources—much more than pure hydrogen—which makes it cheap and easy to store and transport.

IDTechEx: market value of on-road fuel-cell vehicles to grow to $160B in 2042; 23.9% CAGR over 20 years

Green Car Congress

Cheap grey hydrogen generated from fossil fuels makes little sense as a low emission transport fuel because the well-to-wheel emission footprint of a FCEV using grey H 2 offers only a marginal CO 2 saving versus modern diesel vehicles.

Cheap 206

Swansea team develops faster, greener way of producing carbon spheres

Green Car Congress

storage and conversion, catalysis, gas adsorption and storage, drug and enzyme delivery, and water treatment. It uses a cheap and safe feedstock which is readily available in the market.

2020 334

Fraunhofer suggests e-scooters as application for its magnesium hydride paste hydrogen storage technology

Green Car Congress

Fraunhofer’s POWERPASTE releases hydrogen on contact with water. Refueling would be simple; riders merely have to replace an empty cartridge with a new one and then refill a tank with water. Only half of the hydrogen originates from the POWERPASTE; the rest comes from the added water.

Researchers use melamine to create effective, low-cost carbon capture; potential tailpipe application

Green Car Congress

Using an inexpensive polymer called melamine, researchers from UC Berkeley, Texas A&M and Stanford have created a cheap, easy and energy-efficient way to capture carbon dioxide from smokestacks.

Stanford researchers develop new electrolysis system to split seawater into hydrogen and oxygen

Green Car Congress

Existing water-splitting methods rely on highly purified water—a precious resource and costly to produce. Electrolysis of water to generate hydrogen fuel is an attractive renewable energy storage technology. However, grid-scale freshwater electrolysis would put a heavy strain on vital water resources. Developing cheap electrocatalysts and electrodes that can sustain seawater splitting without chloride corrosion could address the water scarcity issue.

2019 207

UK researchers use graphite to waterproof perovskite solar cells

Green Car Congress

A cheaper, cleaner and more sustainable way of making hydrogen fuel from water using sunlight is closer with new research from the University of Bath’s Centre for Sustainable Chemical Technologies. We further demonstrate the versatility of our approach by grafting a molecular Ir-based water oxidation catalyst on the electrolyte-facing surface of the sealing graphite sheet, which cathodically shifts the onset potential of the composite photoanode due to accelerated charge transfer.

2019 198

Power-to-gas trial to inject hydrogen into Australia’s gas grid; A$5M award to AquaHydrex

Green Car Congress

On behalf of the Australian Government, ARENA has provided A$5 million (US$4 million) in funding to Wollongong-based AquaHydrex to develop commercially its new class of electrolyzer to produce cheap hydrogen from splitting water. Power-to-gas involves converting electricity into hydrogen by splitting water, then injecting this into the gas grid, providing long-term energy storage and stabilization of variable output solar and wind power.

2017 150

Baker Institute: End of the ‘Big Oil giveaway’ is underway in the Persian Gulf

Green Car Congress

In recent years, all six Gulf monarchies—Saudi Arabia, the United Arab Emirates (UAE), Kuwait, Oman, Qatar and Bahrain—have begun to challenge the notion that citizens are entitled to cheap energy. They have raised prices on transportation fuel; three have increased prices on electricity and water in citizens’ homes; and electricity and water subsidies for businesses have been reduced in five of the six monarchies, the brief noted.

2016 150

A closer look at humidity control methods for EV electronics

Charged

It’s a well-known trope that water and electricity don’t mix, but keeping the two separated is often deceptively difficult, because the simple solution of just sealing the box is insufficient on its own.

S. Korean researchers develop new catalytic pathway for direct conversion of CO2 to liquid hydrocarbon fuels

Green Car Congress

A team led by Professor Jae Sung Lee at Ulsan National Institute of Science and Technology (UNIST), with colleagues at Pohang University of Science and Technology (POSTECH), have developed a new pathway for the direct conversion of CO 2 to liquid transportation fuels by reaction with renewable hydrogen produced by solar water splitting. Making hydrocarbons out of CO 2 must overcome two challenges—chemical stability of the CO 2 molecule and a cheap and renewable hydrogen source.

2016 213

Blue World Technologies takes 15% stake in Danish Power Systems; methanol fuel cell vehicles

Green Car Congress

Methanol reforming converts a mix of methanol and water into a hydrogen-rich gas. This would enable a ~3-minute refueling time with a +1000 km range using a cheap, simple fuel with reuse of existing infrastructure and logistics. Blue World Technologies has acquired 15% of Danish Power Systems , a developer and manufacturer of membrane electrode assemblies (MEAs) for high-temperature PEM fuel cells.

2019 254

PNNL study finds US could grow enough algae to produce 25B gallons of fuel per year

Green Car Congress

Trade-off analysis map showing the available and least expensive water option for each site. Sites where water supply costs are. A new analysis by researchers at the US Department of Energy’s (DOE’s) Pacific Northwest National Laboratory (PNNL) finds that the US’ land and water resources could likely support the growth of enough algae to produce up to 25 billion gallons of algae-based fuel per year—one-twelfth of the country’s yearly needs.

2013 188

BNEF report finds hydrogen promising decarbonization pathway, but carbon prices and emissions policies required

Green Car Congress

Renewable hydrogen can be made by splitting water into hydrogen and oxygen, using electricity generated by cheap wind or solar power. Carbon prices and emission policies will still be essential to drive hydrogen use, particularly in locations with very cheap coal and gas.

2020 206

KU Leuven team creates solar panel that produces hydrogen from moisture in air

Green Car Congress

If that electric power is used to split the water into hydrogen gas and oxygen, you lose a lot of energy. We’re using cheap raw materials and don't need precious metals or other expensive components. Bioscience engineers at KU Leuven have created a solar panel that produces hydrogen gas from moisture in the air. After ten years of development, the panel can now produce 250 liters per day—a world record, according to the researchers.

2019 256

Gotrax G4 Review

Green Authority

It’s beefier than the Gotrax GXL V2 and has higher-grade parts, such as a metal locking clip to keep the scooter folded instead of a cheap plastic latch, but it also makes it quite heavier. See also: The best cheap kick-scooters.

Cheap 56

Roskill: Green magnesium moving to commercial reality; China’s dominance under threat?

Green Car Congress

The source of magnesium can be from sea water, brine, dolomite, magnesite, and carnallite. Based on silicothermic reduction of magnesium oxide, the Pidgeon process is cheap but has a high energy demand: 366 MJ/kg Mg , compared to other common metals.

2020 167

PNNL, OSU team develops a durable, inexpensive molybdenum-phosphide catalyst for efficient conversion of wastewater & seawater into hydrogen

Green Car Congress

Like seawater, the MoP catalyst material is widely available, and therefore, cheap. The research team started with the MoP combination because of its affinity for activating, or separating, water molecules. While MoP 2 released hydrogen atoms from the water molecules, MoP converted the hydrogen atoms to hydrogen gas molecules.

2019 228

USC team develops novel organic redox flow battery for large-scale energy storage

Green Car Congress

Scientists at USC have developed a novel water-based Organic Redox Flow Battery (ORBAT) for lower cost, long lasting large-scale energy storage. ORBAT employs two different water-soluble organic redox couples on the positive and negative side of a flow battery. Aiming to overcome these disadvantages, we have demonstrated for the first time an aqueous redox flow battery that uses water-soluble organic redox couples at both electrodes that are metal-free. Schematic of ORBAT.

2014 240