Friday 4 July 2014

Rational hybridization of N-doped graphene/carbon nanotubes for oxygen reduction and oxygen evolution reaction

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Credit: Tsinghua University Scientists at Tsinghua University, China, and Nanyang Technological University, Singapore, have designed an intrinsic-disperse nanocarbon architecture hybridizing N-doped graphene and SWCNTs, which can serve as a superior bifunctional electrocatalyst for both oxygen reduction and evolution reactions.   Nowadays, renewable and high-capacity energy systems like fuel cells and metal-air batteries are highly desired to sustainably fuel society. “As the key electrode reactions for such energy systems, ORR and OER, short for oxygen reduction and oxygen evolution reaction, are multi-electron process and kinetically sluggish. Consequently, high efficiency electrocatalysts for these reactions are needed to boost the reaction rate,” says Dr. Qiang Zhang, an associate professor at Department of Chemical Engineering, Tsinghua University. “In spite of high catalytic activity, the conventional noble metal catalysts like Pt, Ru, and Ir, are suffered from the high cost and poor stability. Read more at: Phys.org  

The post Rational hybridization of N-doped graphene/carbon nanotubes for oxygen reduction and oxygen evolution reaction has been published on Technology Org.

 
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