in heterogeneous catalysis, 1,2 sensors, 3 electrochemical 4 or fuel cell 5 research. One of the key parameters assessed is the relative concentration (wt%) of the active metal and the supporting metal–oxide nanoparticle, as this has significant influence on the activity, selectivity and performance, as was shown e.g. The reliable and quick characterization of the synthesized nanomaterials is obviously crucial both in terms of morphology and structure and composition. Introduction Novel metal/metal–oxide nanocomposites are in the focus of intense fundamental research, not only due to their unique characteristics, but also because of their already found several industrial uses in the area of medicine, sensors, energy storage, structural materials or as heterogeneous catalysts for the processing of chemicals or environmental pollutants. The spICP-MS result was concordant with the result obtained by TEM imaging, whereas SEM-EDS, XPS and solution-mode ICP-MS strongly overestimated the concentration. Although the individual measurement of ultra small nanoparticles is not yet possible by spICP-MS, the cumulative signal from such load particles in a nanocomposite allows the accurate determination of the load concentration. This technique works directly with dispersions, the measurement only takes a few minutes, it gives highly reliable results, largely free from interference from precursor residues and can also provide additional information about the particles. After experimentally testing and discussing the pros and cons of each analytical technique, it was found that spICP-MS is one of the most accurate, precise and practical techniques for the analysis of nanocomposites. Four of the techniques (SEM-EDS, TEM imaging, XPS and solution-mode ICP-MS) are often used for the characterization of nanoparticles, whereas single particle ICP-MS (spICP-MS) is an upcoming, novel methodology. and Futu Securities (Australia) Ltd are affiliated companies.In this study, the performance of five analytical techniques applicable to the determination of the load concentration of ultra small nanoparticles in a Pt/SiO 2 nanocomposite was critically evaluated. Moomoo Technologies Inc., Moomoo Financial Inc., Moomoo Financial Singapore Pte. Please read and understand our Financial Services Guide, Terms and Conditions, Privacy Policy and other disclosure documents which are available on our websites and. 224663) regulated by the Australian Securities and Investment Commission (ASIC). In Australia, financial products and services available through the moomoo app are provided by Futu Securities (Australia) Ltd, an Australian Financial Services Licensee (AFSL No. This advertisement has not been reviewed by the Monetary Authority of Singapore. CMS101000) holder with the Exempt Financial Adviser Status. is a Capital Markets Services Licence (License No. regulated by the Monetary Authority of Singapore (MAS). In Singapore, investment products and services available through the moomoo app are offered through Moomoo Financial Singapore Pte. Securities and Exchange Commission (SEC) and a member of Financial Industry Regulatory Authority (FINRA)/Securities Investor Protection Corporation (SIPC). In the U.S., investment products and services available through the moomoo app are offered by Moomoo Financial Inc., a broker-dealer registered with the U.S. Moomoo is a financial information and trading app offered by Moomoo Technologies Inc. Moomoo makes no representation or warranty as to its adequacy, completeness, accuracy or timeliness for any particular purpose of the above content. Returns will vary, and all investments carry risks, including loss of principal. Past investment performance does not indicate or guarantee future success. You should consider the appropriateness of this information having regard to your relevant personal circumstances before making any investment decisions. It is provided without respect to individual investors’ financial sophistication, financial situation, investment objectives, investing time horizon, or risk tolerance. Investment information provided in this content is general in nature, strictly for illustrative purposes, and may not be appropriate for all investors. This presentation is for informational and educational use only and is not a recommendation or endorsement of any particular investment or investment strategy.
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