Opening book details…
Can I read Mechanism and catalytic performance for direct dimethyl ether synthesis by CO2 hydrogenation over CuZnZr/ferrierite hybrid catalyst on EtoBox?
Mechanism and catalytic performance for direct dimethyl ether synthesis by CO2 hydrogenation over CuZnZr/ferrierite hybrid catalyst by Qingtao Sheng; Run-Ping Ye; Weibo Gong; Xiufeng Shi; Bang Xu; Morris Argyle; Hertanto Adidharma; Maohong Fan is a Environmental Science article available to read on EtoBox.
What is Mechanism and catalytic performance for direct dimethyl ether synthesis by CO2 hydrogenation over CuZnZr/ferrierite hybrid catalyst about?
Direct synthesis of dimethyl ether (DME) by CO 2 hydrogenation has been investigated over three hybrid catalysts prepared by different methods: co-precipitation, sol-gel, and solid grinding to produce mixed Cu, ZnO, ZrO 2 catalysts that were physically mixed with a commercial ferrierite (FER) zeolite. The catalysts were characterized by N 2 physisorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), temperature programmed desorption of CO 2 (CO 2 -TPD), temperature programmed desorption of NH 3 (NH 3 -TPD), and temperature programmed H 2 reduction (H 2 -TPR). The results demonstrate that smaller CuO and Cu crystallite sizes resulting in better dispersion of the active phases, higher surface area, and lower reduction temperature are all favorable for catalytic activity. The reaction mechanism has been studied using in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). Methanol appears to be formed via the bidentate-formate (b-HCOO) species undergoing stepwise hydrogenation, while DME formation occurs from methanol dehydration and reaction of two surface methoxy groups.
Who reads Mechanism and catalytic performance for direct dimethyl ether synthesis by CO2 hydrogenation over CuZnZr/ferrierite hybrid catalyst?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Qingtao Sheng; Run-Ping Ye; Weibo Gong; Xiufeng Shi; Bang Xu; Morris Argyle; Hertanto Adidharma; Maohong Fan
- Publisher
- IOS Press; Elsevier ; Elsevier BV (ISSN 1878-7320)
- Published
- 2020
- Language
- EN
- Field
- Environmental Science (Physical Sciences)