article thumbnail

Hydrogen Trains, Upgrading A Water Heater, Cheap Solar — CleanTechnica Top 20

CleanTechnica EVs

Hydrogen trains in California, the various tech options on the market when upgrading your water heater, and the US […]. Another week has flown by and we’ve got another roundup of our top (most popular) stories of the week. This past week, the interest (and content) was all over the map, as it was last week.

Water 112
article thumbnail

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. Currently used solutions include burning the oil, using chemical dispersants to breakdown oil into very small droplets, skimming oil floating on top of water and/or absorbing it with expensive, unrecyclable sorbents.

Water 243
article thumbnail

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. We used silicone to seal it on ours and the cabin is 100% water tight ever since.

2004 409
article thumbnail

New photocatalytic system converts carbon dioxide to valuable fuel more efficiently than natural photosynthesis

Green Car Congress

The new system mimics a natural chloroplast to convert carbon dioxide in water into methane, very efficiently using light. Photosynthesis is the process by which chloroplasts in plants and some organisms use sunlight, water and carbon dioxide to create food or energy.

Convert 369
article thumbnail

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 This is achieved by combining a spray-coated thin-film composite membrane with 2-ethyl-1-hexanol as an extractant. MJ kg -1 , substantially less than other recovery processes (17.0–29.4

Cheap 321
article thumbnail

Researchers split seawater without pre-treatment to produce green hydrogen

Green Car Congress

The use of vast amounts of high-purity water for hydrogen production may aggravate the shortage of freshwater resources. This is achieved by introducing a Lewis acid layer (for example, Cr 2 O 3 ) on transition metal oxide catalysts to dynamically split water molecules and capture hydroxyl anions.

Hydrogen 345
article thumbnail

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. 10 kg POWERPASTE ? 1 kg hydrogen).

Hydrogen 435