钯、铂和钌基催化剂在甲醇催化氧化中的性能

Properties of Pd, Pt and Ru-Based Catalysts in Catalytic Oxidation of Methanol.

作者信息

Jung Sang Chul, Nahm Seung Won, Jung Ho-young, Park Young-kwon, Seo Seong Gyu, Kim Sang Chai

出版信息

J Nanosci Nanotechnol. 2016 Feb;16(2):2088-91. doi: 10.1166/jnn.2016.12014.

DOI:10.1166/jnn.2016.12014

Abstract

Catalytic oxidation of methanol was investigated using Pd, Pt and Ru-based catalysts. Experiment was conducted at reaction temperature of 100-220 degrees C with methanol concentration of 3000 ppm and gas hourly space velocity (GHSV) of 16,000 hr(-1). Catalysts were characterized by using Brunauer-Emmett-Teller (BET) method, X-ray diffraction (XRD), field transmission electron microscopy (FE-TEM) and temperature programmed reduction (TPR). Based on complete oxidation temperature of methanol, the activity order was: 0.16 wt% Pd /0.16 wt% Pt/0.16 wt% Ru/gamma-Al2O3 > 0.5 wt% Pt/gamma-Al2O3 > 0.5 wt% Ru/gamma-AlO3 > 0.5 wt% Pd/gamma-Al2O3. Therefore, the activity of ternary metal-based catalyst was superior to single metal-based catalyst.

摘要

采用钯、铂和钌基催化剂研究了甲醇的催化氧化反应。实验在100 - 220℃的反应温度下进行，甲醇浓度为3000 ppm，气体时空速（GHSV）为16,000 h⁻¹。采用布鲁诺尔-埃米特-泰勒（BET）法、X射线衍射（XRD）、场发射透射电子显微镜（FE-TEM）和程序升温还原（TPR）对催化剂进行了表征。基于甲醇的完全氧化温度，活性顺序为：0.16 wt% Pd /0.16 wt% Pt/0.16 wt% Ru/γ-Al₂O₃ > 0.5 wt% Pt/γ-Al₂O₃ > 0.5 wt% Ru/γ-AlO₃ > 0.5 wt% Pd/γ-Al₂O₃。因此，三元金属基催化剂的活性优于单金属基催化剂。