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血性紅魔至尊木蟲 (文壇精英)
博士
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[求助]
PVP能否還原RhCl3,單質(zhì)Rh在室溫空氣中是否穩(wěn)定? 已有2人參與
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今天一篇文章的審稿意見回來,有一點(diǎn)意見如下: I have one query related to the XPS study, in particular Figure 2. It is concluded that the shift in the peaks is due to co-ordination with O and N in PVP which is consistent with the O 1s and N 1s data, however have the authors considered that there may be some Rh2O3 also present given the proximity of the peak positions to that seen in Figure 6a? It is known that PVP is a mild reducing agent and may reduce RhCl3 to Rh metal which may be oxidised in air. A control experiment to rule out this possibility should be undertaken. 靜電紡絲,我在文中說明在紡絲完成后RhCl3和PVP之間的相互作用(還原前),大意是Rh和PVP中的O和N化學(xué)吸附導(dǎo)致Rh的XPS結(jié)合能減小,同時(shí)PVP中N和O的結(jié)合能增大,這一點(diǎn)有文獻(xiàn)支撐的,我在文中也作了引用。但是審稿人的意思是這有可能是PVP把RhCl3還原成了單質(zhì)Rh,然后單質(zhì)Rh在室溫空氣中被氧化成Rh2O3導(dǎo)致的。但是據(jù)我所知并沒有看到過不加其他還原劑用PVP還原制備Rh納米顆粒的文章,而且我的過程是在室溫下進(jìn)行的,我很想問PVP在室溫下能單獨(dú)把RhCl3還原成單質(zhì)Rh嗎?其次,照理說單質(zhì)Rh在室溫下是穩(wěn)定的,那單質(zhì)Rh在室溫空氣中是否能被氧化成Rh2O3? |
納米材料 |
至尊木蟲 (文壇精英)
博士
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列舉文獻(xiàn),說一下PVP做還原劑都是在高溫下進(jìn)行的,最近一篇關(guān)于PVP做納米顆粒的綜述也許對你有助 http://pubs.rsc.org/en/content/articlehtml/2015/dt/c5dt02964c |
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