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Researchers discover highly active organic photocatalyst
by Staff Writers
Liverpool UK (SPX) Oct 04, 2018

This is an organic catalyst material for photocatalytic hydrogen evolution.

Scientists from the University of Liverpool, University College London and East China University of Science and Technology have synthesized a new organic material that can convert water into hydrogen fuel using sunlight.

Photocatalytic solar hydrogen production - or water splitting - offers an abundant clean energy source, but only if the energy in sunlight can be harvested effectively. Inorganic materials are better known as water splitting catalysts, but organic catalysts can also be built from cheap abundant elements, such as carbon, nitrogen, and sulphur.

The Liverpool-led team has used a combination of experiment and computation to discover a highly active organic photocatalyst. This also revealed some basic design principles, which may guide us to even better catalysts in the future.

Mr Xiaoyan Wang, the Liverpool Chemistry PhD student who led the experimental work, said: "To achieve high hydrogen evolution rates, you need good water affinity, broad light adsorption, high surface area, and high crystallinity. By introducing all of these features in one material, we got a very active photocatalyst."

Mr Wang's PhD project is co-funded by the China Scholarship Council (CSC) and the University of Liverpool, through a joint PhD programme that started in March 2016.

This programme attracts talented PhD candidates from China to carry out their studies in the world-leading Materials Innovation Factory at the University of Liverpool.

Professor Andrew Cooper FRS, academic lead for the study, said: "This project was a multinational collaboration involving researchers from China, Germany, the Netherlands, and the UK. It is a good example of the vital need to hire the best researchers from all over the world, and to collaborate with teams in other countries. Top-level science is an international endeavour."

Research Report: "Sulfone-containing covalent organic frameworks for photocatalytic hydrogen evolution from water"


Related Links
University of Liverpool
Space Technology News - Applications and Research


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Scientists solve the golden puzzle of calaverite
Moscow, Russia (SPX) Oct 01, 2018
Scientists from Russia and Germany shed light on the crystalline structure of calaverite, foretelling the existence of a new gold compound previously unknown to chemists. The results of their study were published in the reputable scientific journal PNAS. A gold tellurite with the chemical formula AuTe2, calaverite may not only be a source of gold, but displays highly incommensurate modulation in the positions of gold and tellurium atoms in its crystals. This means that calaverite's crystal l ... read more

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