私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

相關鏈接
聯系方式
  • 通信地址:江蘇省南京市江寧區東南大學路2號:化學化工學院化工老樓514室
  • 郵編:211189
  • 電話:18936881048
  • 傳真:
  • Email:fchem@163.com
當前位置:> 首頁 > 論文著作 > 正文
Ultra-small PtNi bimetallic encapsulated in silicalite-1 zeolite with fine-tuned surface acidity for selective conversion of levulinic acid
作者:Wang, YY (Wang, Yanyun) [1] ; Bao, JH (Bao, Jiehua) [1] , [2] ; Zuo, CJ (Zuo, Changjiang) [1] ; Dong
關鍵字:encapsulationPtNi bimetallicselective hydrogenationsilicalite-1synergistic effect
論文來源:期刊
發表時間:2022年
Exploration of levulinic acid (LA) hydrogenation to gamma-valerolactone (GVL) contributes to the conversion from carbohydrates to valuable fuels and chemicals. Here, we obtained a series of ultra-small PtNix bimetallic composite catalysts encapsulated in silicalite-1 zeolite (S-1) via a one-pot synthesis strategy protected by tetra(p-carboxyphenyl)porphyrin (TCPP) ligands. The catalytic results showed that PtNi3@S-1 (TCPP) exhibited the most active catalytic performance (95.7% LA conversion and 93.8% GVL selectivity) under optimized conditions. The characterization results indicate that ligand modification and bimetallic synergy play an important role in enhancing the catalytic activity. The introduction of TCPP provides a guarantee for the homogeneous encapsulation of PtNi3 in S-1 zeolite at sub-nanometer size. The electronic interaction of PtNi bimetallic, high dispersibility of active components, improved surface acidity and excellent stability co-contribute to the satisfactory hydrogenation activity.
主站蜘蛛池模板: 曲麻莱县| 兴山县| 黎平县| 新和县| 洪雅县| 临武县| 神池县| 隆子县| 台安县| 聊城市| 大渡口区| 海南省| 张北县| 北流市| 凉山| 尚志市| 化隆| 闽清县| 方城县| 临夏市| 买车| 兴化市| 花垣县| 雷山县| 壤塘县| 清水县| 朝阳区| 翁牛特旗| 新昌县| 兴国县| 祁门县| 仙游县| 汾阳市| 邯郸县| 多伦县| 南投市| 台南市| 景宁| 天全县| 隆回县| 仙居县|