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iron5898銀蟲 (小有名氣)
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[求助]
求助!負(fù)載催化劑的制備方法或文獻(xiàn)
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| 大家有誰知道如何將氧化鑭及二氧化錳負(fù)載到活性氧化鋁載體上?本人合成小碩,以前沒接觸過負(fù)載催化劑,望大家?guī)蛶兔。有相關(guān)文獻(xiàn)給也行!千恩萬謝! |
專家顧問 (職業(yè)作家)
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專家經(jīng)驗(yàn): +587 |
銀蟲 (小有名氣)
木蟲 (正式寫手)

至尊木蟲 (職業(yè)作家)
孤狼B組

專家顧問 (文壇精英)
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專家經(jīng)驗(yàn): +3748 |
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我們做過把氧化鑭浸漬到二氧化硅上,具體的步驟是: A series of La2O3-modified SiO2 denoted as xLa2O3-SiO2 (x = 5, 10, 15, 30), where x means the amount of La2O3 (wt%) added in SiO2, were prepared by impregnation of a commercial spherical SiO2 into an aqueous solution of lanthanum nitrate. The precursor supports were dried at 110 °C overnight, and calcined at 700 °C for 4 h. 參考文獻(xiàn):Catalysis Today, Volume 131, Issues 1–4, 29 February 2008, Pages 278-284 也做過把微量的鑭通過離子交換法負(fù)載到Y(jié)型分子篩上,具體步驟: A powder zeolite NH4Y (Si/Al = 6, BET surface area 420 m2/g) was firstly ion-exchanged in each of an acidic aqueous solution of La3+, Ce3+, Pr2+, Nd3+, Sm3+ and Eu3+ at 90 °C under reflux for 4 h, then the solid was filtered, washed, dried and finally calcined at 500 °C for 5 h. This process was repeated 3–5 times in order to obtain an equal amount of rare earth metal in the modified zeolite. 參考文獻(xiàn):Fuel, Volume 86, Issues 17–18, December 2007, Pages 2707-2713 |
專家顧問 (職業(yè)作家)
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專家經(jīng)驗(yàn): +587 |
榮譽(yù)版主 (文壇精英)
小魚兒
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專家經(jīng)驗(yàn): +6 |

鐵蟲 (初入文壇)
鐵蟲 (初入文壇)
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