Category Chemistry/Nanotechnology

It happens far too often: you plug your laptop in and walk away only to return hours or days later to find it has lost some of its charge despite sitting idle and unused.

The phenomenon—called self-discharge—has frustrated users and industry alike, and puzzled manufacturers trying to determine why lithium-ion battery cells tend to lose some of their charge over time.

A researcher at Dalhousie has identified a surprisingly common culprit that, if replaced, could address an enduring problem for the industry.

“In commercial battery cells there is tape—like Scotch tape—that holds ...

Pyroelectric catalysis (pyro-catalysis) can convert environmental temperature fluctuations into clean chemical energy, like hydrogen. However, compared with the more common catalysis strategy, such as photocatalysis, pyro-catalysis is inefficient due to slow temperature changes in the ambient environment...

An optical fiber that uses the mathematical concept of topology to remain robust, thereby guaranteeing the high-speed transfer of information, has been created by physicists.

Optical fibres are the backbone of our modern information networks. From long-range communication over the internet to high-speed information transfer within data centres and stock exchanges, optical fibre remains critical in our globalised world.

Fibre networks are not, however, structurally perfect, and information transfer can be compromised when things go wrong...

Research discovery will enable the manufacturing of biorenewable materials from trees and corn. A team led by University of Minnesota Twin Cities researchers has invented a groundbreaking new catalyst technology that converts renewable materials like trees and corn to the key chemicals, acrylic acid, and acrylates used in paints, coatings, and superabsorbent polymers...