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junkpengli銅蟲 (小有名氣)
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[交流]
nanoletters上publish的氫燃料電池的paper,和大家分享 已有2人參與
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多謝大家閱讀引用! http://dx.doi.org/10.1021/nl203975u The thousand-fold increase in data-collection speed enabled by aberration-corrected optics allows us to overcome an electron microscopy paradox: how to obtain atomic-resolution chemical structure in individual nanoparticles yet record a statistically significant sample from an inhomogeneous population. This allowed us to map hundreds of Pt–Co nanoparticles to show atomic-scale elemental distributions across different stages of the catalyst aging in a proton-exchange-membrane fuel cell, and relate Pt–shell thickness to treatment, particle size, surface orientation, and ordering. Keywords: Atomic-scale spectroscopic imaging; proton exchange membrane fuel cell; Pt−Co; catalyst degradation; coalescence; Ostwald ripening [ Last edited by junkpengli on 2011-12-16 at 18:24 ] |


銅蟲 (小有名氣)
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鐵桿木蟲 (職業(yè)作家)
銅蟲 (小有名氣)

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