Control of zeolite pore interior for chemoselective alkyne/olefin separations

Science

···李蘭冬課題組···

論文題目:Control of zeolite pore interior for chemoselective alkyne/olefin separations

論文作者:Yuchao Chai*, Xue Han*, Weiyao Li, Shanshan Liu, Sikai Yao, Chong Wang, Wei Shi, Ivan da-Silva, Pascal Manuel, Yongqiang Cheng, Luke D. Daemen, Anibal J. Ramirez-Cuesta, Chiu C. Tang, Ling Jiang, Sihai Yang?,Naijia Guan, Landong Li?

發表期刊:Science, 2020, 368(6494), 1002-1006     


Abstract: 

The efficient removal of alkyne impurities for the production of polymer-grade lower olefins remains an important and challenging goal for many industries. We report a strategy to control the pore interior of faujasite (FAU) zeolites by the confinement of isolated open nickel(II) sites in their six-membered rings. Under ambient conditions, Ni@FAU showed remarkable adsorption of alkynes and efficient separations of acetylene/ethylene, propyne/propylene, and butyne/1,3-butadiene mixtures, with unprecedented dynamic separation selectivities of 100, 92, and 83, respectively. In situ neutron diffraction and inelastic neutron scattering revealed that confined nickel(II) sites enabled chemoselective and reversible binding to acetylene through the formation of metastable [Ni(II)(C2H2)3] complexes. Control of the chemistry of pore interiors of easily scalable zeolites has unlocked their potential in challenging industrial separations.

女人麻豆国产香蕉久久精品
<track id="106aa"></track>

  • <bdo id="106aa"></bdo>
      <bdo id="106aa"></bdo>
      1. <bdo id="106aa"></bdo>

        1. a片在线免费观看|iar613 国产精品第一页|y4z807 亚洲日韩乱码一区二区三区四区|igm491 国产在线拍揄自揄视精品|4jj146 超碰网站|rn4981 最近更新2019中文字幕在线|uq2615 中文字幕在线观看|zzr682 免费看曰批女人爽的视频|rs3518 久草av|efb845 黄色视频在线观看免费|h3u648 国产 日韩 欧美 综合 激情|vjn517 97人妻一区二区精品免费|3dh972 97人人爽人人爽人人一区二区|fw3775 一个人看的www的视频中文|nts904 亚洲影院|j3c50 免费看曰批女人爽的视频|suo154 天堂网av|4rq303 国产69囗曝吞精在线视频|uh2568 三级片免费在线观看|yz2713 国产精品天干天干在线下载|bcw367 免费AV在线|n2z29 亚洲视频在线观看|htc533 狠狠色综合激情五月丁香|2ve645 最近最新高清中文字幕|nj2340 国产精品一区成人精品|ulp910 日韩在线视频|z3w811 色一情一乱一伦一区二区三区四区|aba473 菠萝蜜视频在线观看|3ex143 国产手机在线精品|za3296 欧产日产国产精品精品|awa40 www.色|o1o180 免费黄色软件|f1q535