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請問已報道的光催化產(chǎn)氫最多是多少?10 mmol per hour per gram of photocatalysts
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請問已報道的光催化產(chǎn)氫最多是多少?有比10 mmol per hour per gram of photocatalysts更多的報道嗎? [ Last edited by pzypdl on 2013-2-19 at 22:24 ] |
» 搶金幣啦!回帖就可以得到:
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Agreed with "doctorzyjunior" said. FYI, please check some references from Dr. Kudo's group, Dr. Domen's group and Dr. H. Teng's group (from National Cheng Kung University, Taiwan). I did some water splitting exp. using optimized Kudo's catalyst (NiO-NaTaO3:La). The max H2 evolution rate I observed is ~10mmol/hr.gcat (pure water, low pressure UV lamp 90% ouput at 254 nm). |
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Ref: Chem. Mater. 2008, 20, 35-54 Current record holders in therms of quantum efficiencies (QEs) are NiO-modified La/KTaO3 (QE = 56%, pure water, UV light), ZnS (QE = 90%, aqueous Na2S/Na2SO3, light with λ> 300 nm), and Cr/Rh-modified GaN/ZnO (QE = 2.5%, pure water, visible light). 用QE做參考,比較起來才(目前公認 Angew. Chem. Int. Ed. 2010, 49, 1536-1539)有意義。所以,你所謂的“產(chǎn)氫”數(shù)量是一個不具有實際意義的數(shù)值。歸一化很重要。就好比你單單討論“TON”的多少,遠不如“TOF”來得有可比較性。 |
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