The formation and growth of CeOCl crystals in a molten KCl …
2018年9月20日 · The growth of CeOCl crystals observed by SEM images revealed that cubic CeOCl particles were formed from polyhedral flakes. Photo-Luminescence (PL) spectra showed that the violet-blue light can be emitted from synthesized powder, which suggests CeOCl can be a potential luminescence material.
Synthesis and Catalytic Performance of CeOCl in Deacon Reaction
2013年8月22日 · CeOCl was synthesized by solid state reaction of cerium oxide with anhydrous cerium chloride and tested in HCl oxidation using various feed compositions at 703 K. X-ray diffraction of post-reaction samples revealed that CeOCl is unstable, in both oxygen-rich and …
Low-temperature catalytic destruction of chlorinated VOCs …
2007年11月1日 · It can be supposed that parts of chlorine adsorb on the surface of CeO 2, and then react with it to form CeCl 3 and CeOCl during catalytic destruction of TCE, which results in the lower chlorine balance of the effluent gases. Therefore, XRD, Raman, and XPS were employed to investigate the difference between fresh and used CeO 2 catalysts.
Effect of chlorine on Ir/CeO2 catalyst behavior for preferential CO ...
2010年7月26日 · Effect of chlorine on Ir/CeO 2 catalyst behavior for preferential CO oxidation is investigated by high-resolution transmission electron microscopy, X-ray photoemission spectroscopy, and diffuse reflectance infrared spectroscopy. The presence of chlorine favors the dispersion of Ir particles.
Occurrence and Mechanism of Formation of CeOCl in Pd/CeO2 …
2000年5月15日 · The formation of the CeOCl phase in a Pd (Cl)/CeO 2 catalyst during reduction in hydrogen was studied by HRTEM, XRD, and low-temperature N 2 adsorption (BET). The results indicate that CeOCl crystallites nucleate at (110) faces of CeO 2 crystals at T ≤300°C and then grow by coalescence of existing nuclei and attachment of Ce–O–Cl species ...
High-Pressure Synthesis of CeOCl Crystals and Investigation of …
2018年2月5日 · The well-crystallized mixed anions compound cerium oxychloride (CeOCl) was successfully synthesized by a high-pressure solid-state metathesis reaction. The photoluminescence experiment shows that the CeOCl, with a band gap of ∼3.05 eV, has good violet-blue emission properties.
Catalytic Performance and Characterization of Highly Efficient ...
2020年1月21日 · Catalyst characterization confirmed the presence of Ni nanoparticles and CeOCl species. Composite catalyst provided CO removal to a level below 10 ppm at 230–300 °C and 29 L g cat−1 h −1 flow. XPS study revealed the metallic state …
(PDF) The formation and growth of CeOCl crystals in a
2018年10月1日 · CeOCl started to form in the powder together with ceria at 400 °C under hydrogen atmosphere, and the CeOCl content was 91.3% then decreased with increasing synthesis temperature. The growth of...
CeOCl 晶体在 KCl-LiCl 熔剂中的形成和生长,Applied Physics A - X …
2018年9月20日 · 研究了在熔融 KCl-LiCl 助熔剂中由 Ce3+ 前驱体形成的 CeOCl 晶体的形成和生长。 CeOCl 的形成通过反应 Ce3+ + Cl- + [O2-] = CeOCl 发生，其中 Ce3+ 来自 CeO2-x (0 < x < 0.5) 和 Ce2O3， [O2-] 是晶格氧。
CeOCl晶体的高压合成及其光致发光和压缩性能的研究,Crystal …
2018年2月5日 · 通过高压固态复分解反应成功合成了结晶良好的混合阴离子化合物三氯氧化铈（CeOCl）。 光致发光实验表明，带隙约为3.05 eV的CeOCl具有良好的紫蓝色发射特性。