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Ferric Hydrogen Sulfate as an Efficient Heterogeneous Catalyst for Environmentally Friendly Greener Synthesis of 1,8-Dioxo-Octahydroxanthenes
Fe(HSO4)3 dimedone heterogeneous catalyst 1,8-dioxo-octahydroxanthene
2010/4/9
Ferric hydrogen sulfate was used as an environmentally friendly heterogeneous acidic catalyst for the greener, 1-pot, 3-component synthesis of 1,8-dioxo-octahydroxanthene via condensation reactions be...
高分散度Pt-Ir疏水催化剂制备及氢-水液相交换催化性能研究（Highly Dispersed Pt-Ir Hydrophobic Catalysts: Preparation and Catalytic Activity for Hydrogen-water Liquid Exchange Reaction）
疏水催化剂 氢-水液相催化交换 氢同位素分离 微波加热法 Pt-Ir/C
2010/8/18
用乙二醇作为碳黑分散溶剂，微波辐射快速加热，1～2 MPa压力下制备了Pt/C及不同Pt、Ir比例的Pt-Ir/C催化剂，用浸渍还原法制备了Pt-Ir/C催化剂，并用XRD，TEM和XPS对催化剂进行了表征。将两种方法制备的Pt/C，Pt-Ir/C催化剂与聚四氟乙烯(PTFE)一起负载于多孔金属载体，得到疏水催化剂，考查了其对氢-水液相交换反应的催化活性。微波辐射加热法制备的Pt/C和Pt-Ir...
Determination of the H3 Factor in Hydrogen Isotope Ratio Monitoring Mass Spectrometry
Hydrogen Isotope Ratio Monitoring Mass Spectrometry
2014/4/8
The H3 factor, K, is a parameter required in highprecision, mass spectrometric analyses of hydrogen isotopic abundances. When H2 is used as the sample gas,
R* ) R - Ki2, where R* is the true HD/H2 ra...
Specific Determination of Hydrogen Peroxide With A Catalase Biosensor Based on Mercury Thin Film Electrodes
Specific Determination Hydrogen Peroxide Catalase Biosensor Based Mercury Thin Film Electrodes
2010/6/29
A biosensor for specific determination of hydrogen peroxide was developed using catalase (EC 1.11.1.6) in combination with a mercury film electrode. Catalase was immobilized with gelatine by means of ...
Hydrogen Evolution at Platinum (Pt) and at Platinized Platinum (Ptz) Cathodes
Hydrogen Evolution Platinum (Pt) Platinized Platinum (Ptz) Cathodes
2010/6/29
In this study, the cathodic behaviours of bright platinum (Pt) and at platinized platinum (Ptz) on the platinum anode were investigated in a 1M Na2SO4 electrolyte (pH, from 2 to 8) by means of electro...