nanosheet

Inorganic Nanosheets Enhance Batteries

A graphene inspired electrode material that could help batteries hold more power has been developed by Chinese scientists. The large surface area of these cobalt oxide nanosheets is key to their electrochemical performance.

Batteries are a cornerstone of modern life with most smartphones and laptops using rechargeable lithium ion batteries. As technology advances, the search is on for batteries that can pack more energy into the same space.

Read more: http://www.laboratoryequipment.com/news/2013/04/inorganic-nanosheets-enhance-batteries

XSEM photograph of carbon nanosheets (CNSs); a relatively new type of carbon nanomaterial with fascinating properties yet to be unraveled. CNSs consist of multiple layers of graphene which are structured in such a way that they are oriented vertically on the substrate. While the basal planes are nearly inert, the edge planes contain many open graphitic layers and steps, which can easily be (bio)functionalized, and which show remarkable electrocatalytic and biosensing properties. Scale bar corresponds to 2 µm.

Engineer improves rechargeable batteries with MoS2 nano ‘sandwich’

MANHATTAN, KANSAS — The key to better cellphones and other rechargeable electronics may be in tiny “sandwiches” made of nanosheets, according to mechanical engineering research from Kansas State University. Gurpreet Singh, assistant professor of mechanical and nuclear engineering, and his resea…
Source:Engineer improves rechargeable batteries with MoS2 nano ‘sandwich’

Engineer improves rechargeable batteries with MoS2 nano 'sandwich'

The key to better cellphones and other rechargeable electronics may be in tiny “sandwiches” made of nanosheets, according to mechanical engineering research from Kansas State University. http://dlvr.it/9R9xKb

Korean researchers develop ten times faster super capacitor battery

Korean researchers have developed super capacitor battery with twice as large capacity and ten times faster speed than conventional batteries controlling two dimensional nanomaterial structure and composition. The technology is widely expected to facilitate the development of ultra super capacitor material utilized in next generation energy industry such as electric vehicles and smart grids.

The electric double layer capacitors (EDLC) boasts high power output, faster recharge and discharge, and semi-permanent battery life. However, low energy density can restrict the application. EDLC is a type of super capacitor that stores or discharges energy within seconds by absorbing ion electrically pulled from the electrode surface.

A series of research has been conducted in advanced countries including the US to enhance the energy density by developing super capacitor electrode material. The research team found secondary nanosheet by chemically exfoliating the bulk layered compound made of transitional metal and sulfur as they would to retrieve graphene shedding off a layer of graphite before they build the two dimensional nanosheet into a three dimensional structure.

The result was published in a science magazine ‘Nano Letters’ on March 3, titled as ‘Unveiling Surface Redox Charge Storage of Interacting Two-Dimensional Heteronanosheets in Hierarchical Architectures.’



from Electric Vehicle News
Engineer improves rechargeable batteries with nano 'sandwich'

The key to better cell phones and other rechargeable electronics may be in tiny “sandwiches” made of nanosheets, according to mechanical engineering research.http://dlvr.it/9R9vnf

Korean researchers have developed super capacitor battery with twice as large capacity and ten times faster speed than conventional batteries controlling two dimensional nanomaterial structure and composition. The technology is widely expected to facilitate the development of ultra super capacitor material utilized in next generation energy industry such as electric vehicles and smart grids.

The electric double layer capacitors (EDLC) boasts high power output, faster recharge and discharge, and semi-permanent battery life. However, low energy density can restrict the application. EDLC is a type of super capacitor that stores or discharges energy within seconds by absorbing ion electrically pulled from the electrode surface.

A series of research has been conducted in advanced countries including the US to enhance the energy density by developing super capacitor electrode material. The research team found secondary nanosheet by chemically exfoliating the bulk layered compound made of transitional metal and sulfur as they would to retrieve graphene shedding off a layer of graphite before they build the two dimensional nanosheet into a three dimensional structure.

The result was published in a science magazine ‘Nano Letters’ on March 3, titled as ‘Unveiling Surface Redox Charge Storage of Interacting Two-Dimensional Heteronanosheets in Hierarchical Architectures.’