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jljcat2001木蟲 (正式寫手)
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[交流]
水滑石中二價(jià)或三價(jià)金屬置換,一般是什么樣條件 已有2人參與
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| 如果想用Ni置換水滑石中的Mg,一般是什么樣過程?需要把水滑石預(yù)先低溫焙燒嗎? |
專家顧問 (文壇精英)
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專家經(jīng)驗(yàn): +3748 |
木蟲 (正式寫手)
專家顧問 (文壇精英)
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專家經(jīng)驗(yàn): +3748 |
送鮮花一朵 |
很有意思的討論話題!最近正在修改稿件。有一個(gè)審稿人就說,水滑石應(yīng)該是一種micropore free材料! 我們也檢索了一些數(shù)據(jù),發(fā)現(xiàn): the adsorption volumes of N2 of Cu0.4Zn5.6Al2O9, Cu0.4Zn2.8Mg2.8Al2O9, Cu0.4Zn0.6Mg5.0Al2O9, Cu0.4Zn0.3Mg5.3Al2O9 and Cu0.4Mg5.6Al2O9 at low pressure (p/po < 0.055) are 15.4, 7.7, 15.8, 19.7 and 30.5 cm3/g, respectively. These data indicated that the lamellar-structured catalyst would be a micropore-free material. 這些結(jié)論成立嗎? |
木蟲 (正式寫手)
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我覺得應(yīng)該說主要是以么是mesopore為主的,微孔的含量相對(duì)比較少。至于你的 adsorption volumes of N2 是不是單位錯(cuò)誤,怎么那么大? Surface Area Single point surface area at p/p?= 0.201097403: 271.4510 m?g BET Surface Area: 273.0054 m?g Langmuir Surface Area: 368.1101 m?g t-Plot Micropore Area: 101.7877 m?g t-Plot External Surface Area: 171.2177 m?g BJH Desorption cumulative surface area of pores between 17.000 ?and 3000.000 ?width: 194.4294 m?g Pore Volume Single point adsorption total pore volume of pores less than 69060.728 ?width at p/p?= 0.999723887: 0.246422 cm?g t-Plot micropore volume: 0.046114 cm?g BJH Desorption cumulative volume of pores between 17.000 ?and 3000.000 ?width: 0.209832 cm?g 這組數(shù)據(jù)是我自己合成的水滑石樣品氮吸附數(shù)值,可供參閱 |
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