some 3, 5-diacyl or 3,5-diester 1,4-dihydropyridines were oxidized to the corresponding pyridine derivatives using hydrogen peroxide in aqueous ethanol in the presence of potassium bromide and acetic acid as the catalysts. the reaction was carried out in ethanol and products were isolated in high to excellent yields. however, oxidation of 3,5-diacetyl 1,4-dihydropyridines is slower than 3,5-die...

Summary Clean Energy Technologies Research Institute (CETRI) was formerly known as the International Test Centre for CO2 Capture in early 2000s. The original focus of centre to help lower carbon intensity current energy sources low-carbon ones Canada. Currently, CETRI’s mandates have expanded and now include most near-carbon-free clean-energy research activities. Areas (CO2) capture, utilizatio...

Platinum diimine complexes can covalently be grafted onto oxide-free, hydrogen-terminated silicon(111) surfaces into clean and high-quality monolayers. The so modified offer great prospects as photocathodes for solar-driven electrocatalysis.

Hydrogen fuel is renewable, efficient and clean, and fermentative bacteria hold great promise for its generation. Here we use the isogenic Escherichia coli K-12 KEIO library to rapidly construct multiple, precise deletions in the E. coli genome to direct the metabolic flux towards hydrogen production. Escherichia coli has three active hydrogenases, and the genes involved in the regulation of th...

Today, as a result of the advancement technology and increasing environmental problems, need for clean energy has considerably increased. In this regard, hydrogen, which is sustainable carrier with high density, among well-regarded effective means to deliver store energy, can also be used remediation purposes. Renewable hydrogen carriers successfully substitute fossil fuels decrease carbon diox...

Non-energy use of natural gas is gaining importance. Gas used for 183 million tons annual ammonia production represents 4% total global supply. 1.5-degree pathways estimate an demand growth 3–4-fold until 2050 as new markets in hydrogen transport, shipping and power generation emerge. Ammonia from produced via water electrolysis with renewable (green ammonia) CO2 storage (blue attention due to ...

As an efficient, renewable and clean energy, hydrogen is expected to replace traditional fossil fuel energy in the future. Currently, platinum-based materials (Pt) are excellent electrocatalysts for evolution reaction...

Photocatalytic hydrogen production from water has the potential to fulfil future energy needs by producing a clean and storable fuel. Here discuss recent advances in using nanosized materials as photocatalysts.