Energy

Entering the Fast Lane — MXene Electrodes Push Charing Rate Limits in Energy Storage
July 10, 2017 03:39 PM - Drexel University

Can you imagine fully charging your cell phone in just a few seconds? Researchers in Drexel University’s College of Engineering can, and they took a big step toward making it a reality with their recent work unveiling of a new battery electrode design in the journal Nature Energy.

The team, led by Yury Gogotsi, PhD,Distinguished University and Bach professor in Drexel’s College of Engineering, in the Department of Materials Science and Engineering, created the new electrode designs from a highly conductive, two-dimensional material called MXene. Their design could make energy storage devices like batteries, viewed as the plodding tanker truck of energy storage technology, just as fast as the speedy supercapacitors that are used to provide energy in a pinch — often as a battery back-up or to provide quick bursts of energy for things like camera flashes.

Meniscus-Assisted Technique Produces High Efficiency Perovskite PV Films
July 7, 2017 04:24 PM - Georgia Institute of Technology

A new low-temperature solution printing technique allows fabrication of high-efficiency perovskite solar cells with large crystals intended to minimize current-robbing grain boundaries. The meniscus-assisted solution printing (MASP) technique boosts power conversion efficiencies to nearly 20 percent by controlling crystal size and orientation.

Recruiting Manganese to Upgrade Carbon Dioxide
July 7, 2017 09:26 AM - Okinawa Institute of Science and Technology (OIST) Graduate University

Carbon dioxide (CO2) is known as a greenhouse gas and plays an essential role in climate change; it is no wonder scientists have been looking for solutions to prevent its release in the environment. However, as a cheap, readily available and non-toxic carbon source, in the past few years there have been efforts to turn carbon dioxide into valuable wares, or ‘value-added’ products.

Recruiting Manganese to Upgrade Carbon Dioxide
July 7, 2017 09:26 AM - Okinawa Institute of Science and Technology (OIST) Graduate University

Carbon dioxide (CO2) is known as a greenhouse gas and plays an essential role in climate change; it is no wonder scientists have been looking for solutions to prevent its release in the environment. However, as a cheap, readily available and non-toxic carbon source, in the past few years there have been efforts to turn carbon dioxide into valuable wares, or ‘value-added’ products.

First battery-free cellphone makes calls by harvesting ambient power
July 6, 2017 05:36 PM - University of Washington

University of Washington researchers have invented a cellphone that requires no batteries — a major leap forward in moving beyond chargers, cords and dying phones. Instead, the phone harvests the few microwatts of power it requires from either ambient radio signals or light.

The team also made Skype calls using its battery-free phone, demonstrating that the prototype made of commercial, off-the-shelf components can receive and transmit speech and communicate with a base station.

Surveying sea floor animals for offshore renewable energy
July 6, 2017 05:10 PM - Oregon State University

There is growing interest in developing offshore wind and wave energy facilities in the Pacific Northwest. But not much is known about the sediment and animal life along the sea floor in the region.

Cellulosic Biofuels Can Benefit Environment if Managed Correctly
July 5, 2017 04:57 PM - Michigan State University

Could cellulosic biofuels – or liquid energy derived from grasses and wood – become a green fuel of the future, providing an environmentally sustainable way of meeting energy needs? In Science, researchers at the U.S. Department of Energy-funded Great Lakes Bioenergy Research Center say yes, but with a few important caveats.

CAS Researchers Develop Selective Electrocatalysts to Boost Direct Methanol Fuel Cell Performance
July 5, 2017 04:18 PM - Chinese Academy of Sciences Headquarters

A research group from the Institute of Process Engineering (IPE) of the Chinese Academy of Sciences recently reported the development of a new technology to boost performance of direct methanol fuel cells (DMFCs) using high-concentration methanol as fuel, shedding some light on the design of clean and affordable alternative energy sources for portable electric devices. 

When methanol, the fuel of DMFCs, crosses over from the anode to the cathode through the proton exchange membrane (PEM), fuel cell performance is significantly degraded, creating a major problem for the commercialization of DMFCs. Commonly, scientists use various strategies to improve DMFC performance at high concentrations of methanol. These include improving the fuel-feed system, membrane development, modification of electrodes, and water management. 

Cutting the Cost of Ethanol, Other Biofuels and Gasoline
July 5, 2017 03:13 PM - Rutgers University

Biofuels like the ethanol in U.S. gasoline could get cheaper thanks to experts at Rutgers University-New Brunswick and Michigan State University.

 

Solving a sweet problem for renewable biofuels and chemicals
July 4, 2017 04:22 PM - Arizona State University

ASU scientists harness the trial-and-error power of evolution to coax nature into revealing answer to energy challenge

Whether or not society shakes its addiction to oil and gasoline will depend on a number of profound environmental, geopolitical and societal factors.

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