参考报价:￥1.5万-3万 品牌:莱布卡 产地:韩国 型号: OF-12PW 样本:来电或留言获取样本 在线咨询 留言咨询 电话咨询 收藏 AI问答 LabCompanion原装进口编程型烘箱OF-12PW价格? 可以检测什么? LabCompanion原装进口编程型烘箱OF-12PW参数规格? 配套的耗材试剂? LabCompanion原装进口编程型烘箱OF-12PW操作规程?
However, there is no report on the synthesis of 2-methyl-2-ethyl acetoacetate-1,3-dioxolane catalyzed by PW12/PAn.In this paper, 2-methyl-2-ethyl acetoacetate-1,3-dioxolane was synthesis from ethyl acetoacetate and ethylene glycol in the presence of PW12/PAn. The factors influencing the ...
This paper proposes a thickness measurement method of silicon-oxide and poly-silicon film deposited on 12" silicon wafer for spin etcher. Halogen lamp is used as a light source for generating a wide-band spectrum, which is guided and focused on the wafer surface through a optical fiber cable...
Oxidative dehydrogenation of n-butene to 1,3-butadiene over ZnFe2O4 catalyst mixed with Cs x H3−x PW12O40 heteropolyacid (HPA) was performed in a continuous flow fixed-bed reactor. The effect of Cs x H3−x PW12O40 addition on the catalytic performance of ZnFe2O4 was investigated....
Tungstophosphoric Acid Supported on Highly Organosoluble Polyamide (PW12/PA): Highly Efficient Catalysts for the Synthesis of Novel 1,3,5-Triaryl-2-pyrazoline Derivatives. Chinese Journal of Catalysis 2011;32(3-4):582-588. doi: 1 0 . 1 0 1 6 /S 1 8 7 2 -2 0 6 7 % 2 8 1 ...
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Synthesize of methylamine from methanol and ammonia was studied in this research work using a partiallypotassium heteropoly salt (K3-xHxPW12O40 abbreviated as KPW) as a catalyst. KPW was prepared from heteropoly salt and potassium carbonate by using ion exchange method. The reaction was conducted...
Acid strength of H3PW x Mo12−x O40 (x = 0, 3, 6, 9, and 12) Keggin heteropolyacid (HPA) and H6P2W x Mo18−x O62 (x = 0, 3, 9, 15, and 18) Wells-Dawson HPA catalysts was determined by NH3-TPD measurements. Desorption peak temperature (acid strength) of H3PW x Mo12...
Microwave-Assisted Synthesis of HKUST-1 and Functionalized HKUST-1-@H3PW12O40: Selective Adsorption of Heavy Metal Ions in Water Analyzed with Synchrotron ... Li, W. Li, Microwave-assisted synthesis of HKUST-1 and functionalized HKUST-1-@ H3PW12O40: selective adsorption of heavy metal ions ...
The catalysts involved were 10 % H3PW12O40/ZrO2 and 15 % H3PW12O40/ZrO2 prepared through wet impregnation method. Catalyst characterization using FTIR, BET and NH3-TPD revealed that the catalytic performances were dominantly influenced by the acid sites of the catalyst in the production of ...