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05-Mar-2013
A new copper-manganese composite could find use as a supercapacitor thanks to its high capacitance, conductivity and durability. What’s more, the synthesis of the material makes use of tree leaves – an abundance natural resource that makes this a truly green material.
Researchers from Nanjing University, China, prepared a highly conductive copper superstructure using the sapless leaves of magnolia, phoenix and maidenhair trees. They added a MnO2 nanofilm coating and used the resulting composite material as an electrode in an electrochemical supercapacitor, measuring a capacitance of 1024 F g-1. Approximately 96% of this capacity was retained after 2000 charge-discharge cycles.
Supercapacitors are thought to be good candidates for future power-storage devices, showing high power density, fast charging/discharging and excellent cycling stability.
Original publication:
New coating is self-defence for seeds
Scientists in Switzerland have developed a protective coating for seeds that poisons pests with cyanide when they bite into it. The coating is a system of two layers and only becomes toxic when the layers are mixed, eliminating the problem of environmental contamination that is associated w ... more
Using bacteria to make electrodes
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Marine plant replacement for platinum in solar cells
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Royal Society of Chemistry – About us
With more than 51,000 members and an international publishing and knowledge business we are the UK’s professional body for chemical scientists, supporting and representing our members and bringing together chemical scientists from all over the world. more
Hear from RSC member Vicki Stone talk about her role as a Nanotoxicologist. more
When Food met Pharma: Delivery Strategies for Nutraceuticals
With growing prevalence of lifestyle-associated diseases, including obesity, Type II diabetes and cardiovascular disease, there is an urgent need and demand to try to prevent the onset of these diseases within our growing population. Nutraceuticals, along with appropriate diet and exercise, ... more
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Surface Enhanced Raman Scattering - SERS: Faraday Discussions
This meeting aims to set the agenda for the surface-enhanced Raman scattering (SERS) field for the next 10 years, by bringing the community together to welcome in new emerging priority areas and embracing the diversity of approaches and disciplines which are contributing to the growth and u ... more
Complex Molecular Surfaces and Interfaces: Faraday Discussion
The unique behavior of compounds confined at interfaces can be very different from those in bulk situations. Advances in methods and their understanding for determination of the structure and chemical bonding at surfaces is central to continued progress in the field. Among the questions tha ... more
Royal Society of Chemistry (RSC)
The RSC is a leading international publisher of highly regarded journals and books in the chemical sciences. The RSC is also the professional body for chemists with a global membership of over 46,000. more
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