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Top News In விஞ்ஞானிகள் இல் ோக்கைடோ பல்கலைக்கழகம் Today - Breaking & Trending Today

Hammering out future chemicals

Scientists at Hokkaido University have discovered that they can use mechanical force to start chemical reactions.
The team led by Professor Hajime Ito of the Faculty of Engineering and WPI-ICReDD is pioneering a research field called “mechanochemistry”. Since 2007, they have developed crystals that change colors in response to mechanical stimuli like grinding, rubbing or scratching. Potential applications range from bioimaging reagents to security inks in passports.
The team’s most recent discovery represents a big step forward for mechanochemistry. They found that a mechanical force can trigger chemical reactions in organic compounds.
Hajime Ito says, “Chemical reactions are often prompted by heating, or need a large amount of harmful organic solvent. In our study, we focused on what’s called ‘piezoelectric’ materials, which generate electric potentials in response to mechanical pressure.” ....

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New variety of paintbrush lily developed by a novel plant tissue culture technique

Scientists at Hokkaido University and Chiba University have developed simultaneous triploid and hexaploid varieties of Haemanthus albiflos by the. ....

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Nanotechnology Now - Press Release: Record-setting thermoelectric figure of merit achieved for metal oxides

Home > Press > Record-setting thermoelectric figure of merit achieved for metal oxides
The barium-cobalt oxide film (top right, approximately 1 cm2) being exposed to an open flame to generate voltage. (Photo: Hiromichi Ohta)
CREDIT
Hiromichi Ohta
Abstract:
Scientists at Hokkaido University have developed a layered cobalt oxide with a record-setting thermoelectric figure of merit, which can be used to enhance thermoelectric power generation.
Record-setting thermoelectric figure of merit achieved for metal oxides
Hokkaido, Japan | Posted on December 29th, 2020
Waste heat is a highly promising source of renewable energy; however, the efficiency of using heat to generate energy has historically been much lower than hydroelectric, wind or solar power. While there are a number of materials that can be used for the generation of energy from waste heat, they all suffer from various issues ranging from low stability to low efficiency. Nevertheless, the fac ....

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