News Column

Study Results from Shanghai University Update Understanding of Chalcogens

May 27, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators publish new report on Chalcogens. According to news reporting originating from Shanghai, People's Republic of China, by NewsRx correspondents, research stated, "The high cost of platinum (Pt) based catalysts for oxygen reduction reaction (ORR) has restricted the widespread commercialization of fuel cells. Heteroatom (N, B, P, S or Se) doped carbon materials have been regarded as the promising metal-free catalysts for replacing Pt based catalysts owing to their high efficiencies, good stability and relative low cost."

Our news editors obtained a quote from the research from Shanghai University, "In this work, we present a cost-effective synthesis approach for heteroatom (N and S) doped mesoporous carbon/graphene (HMCG) nanosheets by using nano-casting technology with mesoporous silica/graphene nanosheets (MSG) as hard templates, and four different amino acids (alanine, serine, arginine and cystine) as heteroatom (N, S) and carbon precursors. The resulting catalysts exhibited excellent electrocatalytic activity for ORR in alkaline media. In particular, HMCG(Ala) with alanine as precursors showed the highest electron transfer numbers and durability."

According to the news editors, the research concluded: "These results indicated the attractive potential of HMCGs as metal-free catalysts in practical fuel cells."

For more information on this research see: Heteroatom doped mesoporous carbon/graphene nanosheets as highly efficient electrocatalysts for oxygen reduction. Journal of Colloid and Interface Science, 2014;421():160-164. Journal of Colloid and Interface Science can be contacted at: Academic Press Inc Elsevier Science, 525 B St, Ste 1900, San Diego, CA 92101-4495, USA. (Elsevier -; Journal of Colloid and Interface Science -

The news editors report that additional information may be obtained by contacting P.M. Xu, Shanghai Univ, Lab Microstruct, Shanghai 200444, People's Republic of China. Additional authors for this research include D.Q. Wu, L. Wan, P.F. Hu and R.L. Liu (see also Chalcogens).

Keywords for this news article include: Asia, Shanghai, Chalcogens, Nanosheets, Nanotechnology, Emerging Technologies, People's Republic of China

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Source: Life Science Weekly

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