Chemistry Green chemistry

News

World’s first LED light from rice husks
11 Apr 2022
Milling rice to separate the grain from the husks, produces about 100 million tons of rice husk waste globally each year. Scientists searching for a scalable method to fabricate quantum dots have developed a way to recycle rice husks to create the first silicon quantum dot LED light. Their new method transforms agricultural waste into state-of-the-art light-emitting diodes in a low-cost, environmentally friendly way.
Schematic: New research advances small scale NH3 Synthesis for use in renewable energy
14 Feb 2022
Research by Japanese scientists at Hiroshima University reveals a way to make ammonia from its constituent molecules of nitrogen and hydrogen at ambient pressure.
Reaction vials being exposed to blue light from an LED (Photo: Yusuke Masuda).
18 Jan 2022
A new method for creating a highly useful chemical subunit eliminates the need for precious metals, potentially leading to the sustainable production of pharmaceuticals and electronics.
Simpler, greener method for producing Grignard reagents
18 Nov 2021
A new method for creating one of chemistry’s most widely used class of compounds could revolutionize industrial processes, making them cheaper, simpler and more environmentally friendly.
Professor Toshifumi Satoh, Graduate School of Engineering, Hokkaido University
06 Sep 2021
Professor Toshifumi Satoh of Hokkaido University’s Graduate School of Engineering has taken up the challenge to create “Smart synthetic method.” Satoh and his colleagues proposed the idea of “Smart synthesis,” which aims to minimize the use of harmful chemicals and solvents for cleaner and more sustainable polymeric synthesis.
18 Jul 2021
Using a CeO2 catalyst, researchers develop an effective catalytic process for the direct synthesis of polycarbonate diols without the need for dehydrating agents. The high yield, high selective process has CO2 blown at atmospheric pressure to evaporate excess water by-product allowing for a catalytic process that can be used with any substrate with a boiling point higher than water.
13 Apr 2021
Scientists develop high performing electrocatalyst to synthesize ammonia in an effort to replace conventional eco-unfriendly methods
City University of Hong Kong, CityU, CityUResearch
02 Feb 2021
Carbon dioxide (CO2) is one of the major greenhouse gases causing global warming. If the carbon dioxide could be converted into energy, it would be killing two birds with one stone in addressing the environmental issues. A joint research team led by City University of Hong Kong (CityU) has developed a new photocatalyst which can produce methane fuel (CH4) selectively and effectively from carbon dioxide using sunlight. According to their research, the quantity of methane produced was almost doubled in the first 8 hours of the reaction process.
09 Sep 2020
Scientists at Daegu Gyeongbuk Institute of Science and Technology, Korea, develop a novel “heterostructured” photocatalyst using titanium and copper, two abundant and relatively inexpensive metals. Their cost-effective synthesis procedure, coupled with the high stability of the photocatalyst, provides an economically feasible way to convert waste carbon dioxide and water into useful hydrocarbon fuels using endless sunlight.
04 Sep 2020
Scientists at Daegu Gyeongbuk Institute of Science and Technology (DGIST) in Korea have found a way to improve the efficiency of betavoltaic devices, a type of power source that uses an internal radioactive material. This study opens up a new horizon in the field of nuclear batteries for powering set-and-forget electronic devices.
Professor Guntae Kim and his research team
21 Jan 2019
A team of researchers has developed a system that produces electricity and hydrogen (H2) while eliminating carbon dioxide (CO2).
Future fuels
27 Nov 2018
A compound made from the glycerol by-product of biodiesel production could promote cleaner burning in vehicle engines.
It's all in the swirl: minimizing ammonia fuel emissions
09 Oct 2018
New simulations indicate that swirling ammonia in combustion chambers can help reduce harmful emissions – insight that may help on-going efforts to develop ammonia as a carbon-free fuel source.

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