Overview of Precious Metal Content Analysis Methods in Automotive Catalytic Converter
Overview of Precious Metal Content Analysis Methods in Automotive Catalytic Converter作者机构：Department of National Internal Combustion Engine Industry Measuring and Testing Center Weifang China Department of Weichai Power Co. Ltd. Weifang China
出 版 物：《Journal of Materials Science and Chemical Engineering》 (材料科学与化学工程（英文）)
年 卷 期：2023年第11卷第11期
页 面：7-14页
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
主 题：Catalytic Converter Precious Metal Content Analysis Methods
摘 要：With the increasing awareness of environmental protection, people’s concern of pollution issues arising. Vehicles, as the most important means of transportation, its exhaust emission has received considerable attention. The catalytic converter is able to purify harmful substances in exhaust gas. The absolute content of precious metals in the catalytic converter dominates the exhaust gas purification effect. Accurate detection of precious metal content is of great significance for controlling the cost of catalysts, ensuring catalytic performance and recovering precious metals from spent catalysts. We herein summarized several instruments for precious metals content exploration, such as X-ray fluorescence spectrometer (XRF), atomic absorption spectrometer (AAS), inductively coupled plasma emission spectrometer (ICP) and spectrophotometer. In this thesis, the feasibility of using various devices for characterizing precious metal content in catalytic converters is analyzed and their strengths or weaknesses are elaborated.
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