Development of a Heatable Flow Cell System for <i>in situ</i> XAFS and Its Application to Analysis of Electroless Nickel Plating Reaction

DOI Web Site 10 References
  • NAKAJIMA Junichi
    Analysis Research Department, Chemical Research Laboratory, Nissan Chemical Corporation
  • NOGAMI Teppei
    Analysis Research Department, Chemical Research Laboratory, Nissan Chemical Corporation
  • KAJIWARA Yuuki
    Analysis Research Department, Chemical Research Laboratory, Nissan Chemical Corporation
  • NAKANISHI Momotaro
    Analysis Research Department, Chemical Research Laboratory, Nissan Chemical Corporation
  • FUJIKI Yu
    Analysis Research Department, Chemical Research Laboratory, Nissan Chemical Corporation
  • CHIKAMA Katsumi
    Analysis Research Department, Chemical Research Laboratory, Nissan Chemical Corporation
  • YAMAZOE Seiji
    Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University

Bibliographic Information

Other Title
  • <i>in situ</i> XAFS用加熱フローセルシステムの開発と無電解ニッケルめっき反応の解析への応用

Abstract

<p>We have developed a heatable flow cell system for in situ XAFS measurements that continuously observes chemical state changes in a sample containing a solution. The system was applied to the analysis of electroless nickel-phosphorus plating reaction to evaluate its applicability. The flow cell and the heater were provided with windows for passing X-rays, and 20 sheets of polyester film with a catalyst were enclosed in the cell. The electroless nickel-phosphorus plating solution was pumped into the cell with the heater temperature set at 60 °C, and nickel was deposited on the film in the cell. The change in the chemical state of nickel on the deposition reaction was observed by continuous Ni K-edge XAFS measurements (at BL28B2 in SPring-8) from the start of feeding the plating solution. As a result, it was found that nickel sulfate, which is the source of nickel in the plating solution used, changed to metallic nickel and nickel phosphide over time. In addition, the analytical results of the chemical state changes based on the in situ XAFS measurements were in good agreement with those based on the ex situ XAFS measurements of nickel and phosphorus. Therefore, this flow cell system is considered effective for continuous observation of the chemical state changes in a sample containing a solution.</p>

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 72 (10.11), 391-397, 2023-10-05

    The Japan Society for Analytical Chemistry

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