当前位置：
X-MOL 学术
›
Chem. Asian J.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Ketone Hydrogenation by Using ZnO-Cu(OH)Cl/MCM-41 with a Splash of Water: An Environmentally Benign Approach.
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2020-03-17 , DOI: 10.1002/asia.201901610 Neha Choudhary 1 , Topi Ghosh 1 , Shaikh M Mobin 1, 2, 3
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2020-03-17 , DOI: 10.1002/asia.201901610 Neha Choudhary 1 , Topi Ghosh 1 , Shaikh M Mobin 1, 2, 3
Affiliation
|
MCM-41-supported ZnO-Cu(OH)Cl nanoparticles were synthesized via an incipient wetness impregnation technique using zinc chloride and copper chloride salts as well as water at room temperature. The catalyst was characterized by powder X-ray diffraction (PXRD), infrared spectroscopy (IR), and TGA, whereas surface and morphological studies were performed by using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The above studies revealed the incorporation of metal species into the pores of MCM-41, leading to a decrease in surface area of the nanoparticles that was found to be 239.079 m2 /g. The substituents attached to the ketone determine the rate of the reaction, and the utilization of the green solvent 'water' astonishingly completes the hydrogenation reaction in 45 minutes at 40 °C with 100% conversion and 100% selectivity as analyzed by gas chromatography-mass spectrometry. Hence, ZnO-Cu(OH)Cl/MCM-41 nanoparticles with 2.46 wt% zinc and 6.39 wt% copper were demonstrated as an active catalyst for the reduction of ketones without using any gaseous hydrogen source making it highly efficient as well as environmentally and economically benign.
中文翻译：
使用ZnO-Cu（OH）Cl / MCM-41与水飞溅进行酮加氢：一种环境友好的方法。
MCM-41负载的ZnO-Cu（OH）Cl纳米粒子是通过使用氯化锌和氯化铜盐以及水在室温下通过湿润浸渍技术合成的。催化剂通过粉末X射线衍射（PXRD），红外光谱（IR）和TGA进行表征，而表面和形态研究是使用扫描电子显微镜（SEM）和透射电子显微镜（TEM）进行的。上述研究表明，金属物质掺入MCM-41的孔中，导致纳米颗粒的表面积减少，发现为239.079 m2 / g。附着在酮上的取代基决定了反应速率以及绿色溶剂“水”的利用率 通过气相色谱-质谱法分析，在40°C下45分钟内惊人地完成了氢化反应，转化率为100％，选择性为100％。因此，已证明具有2.46 wt％的锌和6.39 wt％的铜的ZnO-Cu（OH）Cl / MCM-41纳米颗粒可作为还原酮的活性催化剂，而无需使用任何气态氢源，使其高效，环保，经济上是良性的。
更新日期：2020-04-22
中文翻译：
使用ZnO-Cu（OH）Cl / MCM-41与水飞溅进行酮加氢：一种环境友好的方法。
MCM-41负载的ZnO-Cu（OH）Cl纳米粒子是通过使用氯化锌和氯化铜盐以及水在室温下通过湿润浸渍技术合成的。催化剂通过粉末X射线衍射（PXRD），红外光谱（IR）和TGA进行表征，而表面和形态研究是使用扫描电子显微镜（SEM）和透射电子显微镜（TEM）进行的。上述研究表明，金属物质掺入MCM-41的孔中，导致纳米颗粒的表面积减少，发现为239.079 m2 / g。附着在酮上的取代基决定了反应速率以及绿色溶剂“水”的利用率 通过气相色谱-质谱法分析，在40°C下45分钟内惊人地完成了氢化反应，转化率为100％，选择性为100％。因此，已证明具有2.46 wt％的锌和6.39 wt％的铜的ZnO-Cu（OH）Cl / MCM-41纳米颗粒可作为还原酮的活性催化剂，而无需使用任何气态氢源，使其高效，环保，经济上是良性的。
京公网安备 11010802027423号