1. <tbody id="90949"></tbody>

      <button id="90949"></button>
        <th id="90949"><track id="90949"></track></th>
        高分散Pd/Ni-A-CA納米催化劑催化喹啉加氫
        DOI:
        作者:
        作者單位:

        重慶科技學院 化學化工學院

        作者簡介:

        通訊作者:

        中圖分類號:

        基金項目:


        High dispersion Pd/Ni-A-CA nanocatalysts for catalytic hydrogenation of quinoline
        Author:
        Affiliation:

        School of chemistry and chemical engineering,Chongqing University of science and technology

        Fund Project:

        Master innovation program of Chongqing Institute of science and technology(YKJCX2120533和YKJCX2120519)

        • 摘要
        • |
        • 圖/表
        • |
        • 訪問統計
        • |
        • 參考文獻
        • |
        • 相似文獻
        • |
        • 引證文獻
        • |
        • 資源附件
        • |
        • 文章評論
          摘要:

          以鎳為金屬節點,腺嘌呤和檸檬酸為有機配體,采用溶劑熱法制備非晶態金屬有機配合物Ni-A-CA。將PdCl2溶液浸漬于載體Ni-A-CA后用NaBH4還原制得高分散的Pd納米粒子(Pd NPs)催化劑Pd/Ni-A-CA。通過XRD、TEM、XPS等對催化劑的結構、形貌以及組成進行表征分析。結果表明:Pd NPs高度分散在載體Ni-A-CA上,其粒徑為2.2 ± 0.3 nm,且載體與Pd NPs之間存在強的相互作用,增強了催化劑的催化性能。在90 ℃,2 MPa H2條件下,負載量為3%(以Ni-A-CA的質量計,下同)Pd/Ni-A-CA催化劑催化喹啉加氫反應70 min,喹啉轉化率為99%,生成1,2,3,4-四氫喹啉選擇性大于99%。催化劑3% Pd/Ni-A-CA經過5次循環后,其催化性能基本保持不變。

          Abstract:

          The amorphous metal-organic compounds (Ni-A-CA) were prepared by combining nickel node with organic ligands (adenine (A) and citric acid (CA)) via solvothermal method. Then, highly dispersed Pd/Ni-A-CA catalysts developed were fabricated by dispersing PdCl2 on amorphous support and reducing PdCl2 solution via freshly prepared NaBH4. The microstructure, morphology, and compositions of the obtained Pd/Ni-A-CA catalysts were comprehensively investigated by XRD, FT-IR, TEM, and XPS, etc. The results showed that Pd NPs were in high dispersed state and Pd NPs size diameter was 2.2 ± 0.3 nm. Besides, there existed a strong interaction effect between Pd NPs and amorphous Ni-A-CA support. The optimal temperature and hydrogen pressure were 90 °C and 2 MPa H2, respectively. Under this condition, the conversion of quinoline and the selectivity of 1,2,3,4-tetrahydroquinoline were about 99% over 3% Pd/Ni-A-CA catalyst for 70 min reaction duration. Furthermore, the Pd/Ni-A-CA catalyst also exhibited good catalytic stability and catalytic performance basically kept unchanged after 5 cycles.

          參考文獻
          相似文獻
          引證文獻
        引用本文

        崔坤成,李泓錕,雷陽,袁果園,劉德蓉,熊偉.高分散Pd/Ni-A-CA納米催化劑催化喹啉加氫[J].精細化工,2023,40(6):

        復制
        分享
        文章指標
        • 點擊次數:
        • 下載次數:
        • HTML閱讀次數:
        • 引用次數:
        歷史
        • 收稿日期:2022-08-23
        • 最后修改日期:2022-12-08
        • 錄用日期:2022-12-12
        • 在線發布日期: 2023-05-11
        • 出版日期:
        2021国产麻豆剧果冻传媒免费_久久国产成人美女_9热精品视频在线观看_欧美A级毛欧美1级A大片

          1. <tbody id="90949"></tbody>

            <button id="90949"></button>
              <th id="90949"><track id="90949"></track></th>