Ni/W/Cu对MgAlO在低压氢气条件下将纤维素一锅法氢解为乙二醇的协同作用。
Synergistic Effect of Ni/W/Cu on MgAlO for One-Pot Hydrogenolysis of Cellulose to Ethylene Glycol at a Low H Pressure.
作者信息
Yu Jun, Liang Jiezhen, Chen Xiaopeng, Wang Linlin, Wei Xiaojie, Li Youqi, Qin Yanmin
机构信息
Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
出版信息
ACS Omega. 2021 Apr 20;6(17):11650-11659. doi: 10.1021/acsomega.1c00979. eCollection 2021 May 4.
Nickel and tungsten, combined with copper, were incorporated into a magnesium aluminum spinel to form a multifunctional catalyst (Ni-W-Cu/MgAlO). Characterization results suggested that the adjacent Cu not only facilitated the reduction of W to W with substantial oxygen vacancies but also promoted the reducibility of the Ni species. Besides, the incorporation of Ni, W, and Cu into the support enhanced the catalytic acidity, as well as the L acid sites. The catalyst exhibited a strong synergistic effect between the three metals and the support, resulting in higher catalytic activity for the one-pot hydrogenolysis of cellulose to ethylene glycol. High cellulose conversion (100%) and ethylene glycol yield (52.8%) were obtained, even under a low H pressure of 3 MPa.
将镍、钨与铜相结合，引入到镁铝尖晶石中，形成一种多功能催化剂（Ni-W-Cu/MgAlO）。表征结果表明，相邻的铜不仅有助于将钨还原为具有大量氧空位的钨，还促进了镍物种的还原性。此外，将镍、钨和铜引入载体增强了催化酸性以及L酸位点。该催化剂在三种金属与载体之间表现出强烈的协同效应，从而对纤维素一锅法氢解制乙二醇具有更高的催化活性。即使在3 MPa的低氢气压力下，也能获得高纤维素转化率（100%）和乙二醇产率（52.8%）。
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