The crystalline structure and morphology of the products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscope (TEM). The XRD results reveal that MnO2 is the form of beta-MnO2. The TEM and SEM results show that MnO2/CNTs nano...
Magnetic photocatalyst beta-Bi2O3/beta-MnO2/MnxZn1-xFe2O4 (BM/MZF) was successfully synthesised using dip-calcination method. The structure and properties of as-prepared samples were characterised by XRD, SEM, FT-IR, UV-DRS and VSM. The peaks of beta-Bi2O3 and beta-MnO2 without an obv...
Highly dispersed beta-MnO2 nanorods are prepared by a simple one-step hydrothermal synthesis method. The structure and morphology of the beta-MnO2 nanorods are investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The supercapacitive...
在连续流动固定床反应器上考察了不同MnO2负载量的MnO2/HBeta分子筛催化二甲醚制六甲基苯的性能,结果表明:10%MnO2改性HBeta有利于提高六甲基苯选择性.在常压、反应温度为280℃、空速为100h-1条件下,10%MnO2/HBeta催化二甲醚反应,二甲醚转化率达76.36%,HMB选择性为25.1%.利用NH3-TPD,Py-IR,BET及XRD等对催化剂...
SEM images showed nanorod shape of all specimens, while microstructure characterization done by XRD measurements revealed that crystallites have an elongated rod-like shape and, hence, it confirmed the anisotropic morphology. Magnetic ordering of beta-MnO2 is antiferromagnetic below 93 K, while both ...
Magnetic photocatalyst beta-Bi2O3/beta-MnO2/MnxZn1-xFe2O4 (BM/MZF) was successfully synthesised using dip-calcination method. The structure and properties of as-prepared samples were characterised by XRD, SEM, FT-IR, UV-DRS and VSM. The peaks of beta-Bi2O3 and beta-MnO2 without an ...
Magnetic photocatalyst beta-Bi2O3/beta-MnO2/MnxZn1-xFe2O4 (BM/MZF) was successfully synthesised using dip-calcination method. The structure and properties of as-prepared samples were characterised by XRD, SEM, FT-IR, UV-DRS and VSM. The peaks of beta-Bi2O3 and beta-MnO2 without an ...
(TOF) being achieved over the catalyst with 5 wt.% gold loading.Both XRD and TEM results showed that the majority of Au particles of various catalysts have diameters in the range of 2-6 nm.Temperature-programmed reduction (TPR) results indicated that the reducibility of MnO2 was significantly...
3.1. XRD Analysis X-ray diffraction was performed at ambient temperature to examine the crystal structure and size of the prepared MnO2 phases. Based on the synthesis conditions and amount of precursor used, the XRD spectrum of all the tunneled structures synthesized via the facile hydrothermal rout...