Advertisement

Graphene

Energy

New catalyst could replace platinum in cheaper fuel cells

A more cost-effective fuel cell catalyst material consisting of iron-nitrogen complexes embedded in tiny islands of graphene could be used in place of costly platinum. Research by teams at Helmholtz Zentrum Berlin and TU Darmstadt have produced the catalyst material and found that its efficiency approaches that of platinum.Read More

Aircraft

A pinch of graphene could keep airplane wings ice-free

Both airplane wings and helicopter rotor blades are subject to one problem – they can both ice up. Although de-icing solutions can be applied when aircraft are on the ground, that doesn't stop ice from eventually forming once they're in the air. That's why scientists at Texas' Rice University have developed a new graphene-based coating that continuously melts ice by conducting an electrical current.Read More

Materials

Material one thousand times thinner than paper withstands the squeeze to retain its shape

Ultra-thin and lightweight, yet durable beyond the lab setting. These are the desirable attributes for scientists in pursuit of the next generation of versatile, high-performing wonder materials. Emphasizing one without compromising the others has been a tricky balancing act for engineers, but one team is now claiming a significant breakthrough. Its first-of-its-kind nanoscale plate is one thousand times thinner than paper and still manages to maintain its shape after being bent and twisted by a human hand.Read More

Medical

Graphene shows promise for super strong dental fillings

A team of researchers from four institutions located in Romania and St. Kitts have worked together to determine whether graphene could be used to create more durable dental materials. They worked to test how toxic different forms of the material were to teeth, with promising results.Read More

Materials

New process could see "white graphene" pairing with graphene in ultra-thin electronics

Monolayer-thick sheets of hexagonal boron nitride, or "white graphene," share many of the properties of graphene, including exceptional mechanical strength and thermal conductivity. But one important point of difference is its electrical conductivity, with graphene being a conductor, while white graphene is an insulator. Now researchers have developed a process to create a virtually perfect monolayer of white graphene, making a dream team pairing of graphene and white graphene substrate for use in next generation electronic devices a possibility.Read More

Materials

Graphene membrane makes for a more sensitive condenser microphone

Graphene's ever-growing list of remarkable properties has seen many wide-reaching potential applications for the wonder material proposed, but actual demonstrations of real-world uses are still thin on the ground. But that's slowly changing. Following a graphene-based light bulb headed for commercial release being revealed earlier this year, now scientists have developed a graphene-based condenser microphone that is more sensitive than its conventional cousins.Read More

Materials

Scientists produce graphene 100 times cheaper than ever before

Since first being synthesized by Andre Geim and Kostya Novoselov at the University of Manchester in 2004, there has been an extensive effort to exploit the extraordinary properties of graphene. However the cost of graphene in comparison to more traditional electronic materials has meant that its uptake in electronic manufacturing has been slow. Now researchers at the University of Glasgow have discovered a way to create large sheets of graphene at a fraction of the cost of current methods.Read More

Materials

Boron-doped graphene to enable ultrasensitive gas sensors

As an atom-thick, two-dimensional material with high conductivity, graphene is set to enable a stream of new electronic devices, including particularly sensitive sensors for the detection of various gases, such as those produced by explosives. Now an international team of researchers led by Pennsylvania State University (Penn State) has created a graphene-boron amalgam that can detect particular gases down to mere parts per billion, and may eventually lead to detectors with such sensitivity that they could detect infinitesimally tiny amounts of gas in the order of parts per quadrillion.Read More

Materials

High-efficiency, semi-transparent perovskite/graphene solar cells created at low cost

With the continued rise in the uptake of solar cells, consumers are now looking at less obtrusive ways to incorporate these in buildings and vehicles. Transparent or semi-transparent cells provide greater flexibility and visual appeal than standard, opaque silicon solar cells, however their relatively high-cost and poor efficiencies have meant that their adoption has been slow. To help remedy this, researchers working at the Hong Kong Polytechnic University (PolyU) have created semi-transparent, efficient, low-cost perovskite solar cells with graphene electrodes.Read More

    Advertisement
    Advertisement
    Advertisement

    See the stories that matter in your inbox every morning