Incorporation of Cu(II) and its selective reduction to Cu(I) within confined spaces: efficient active sites for CO adsorption
Incorporation of Cu(II) and its selective reduction to Cu(I) within confined spaces: efficient active sites for CO adsorption
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Cu(II) 的掺入及其在有限空间内选择性还原为 Cu(I)：CO 吸附的有效活性位点
DOI：
10.1039/c8ta01805g
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发表时间：
2018-05
影响因子：
11.9
通讯作者：
Sun Lin-Bing
中科院分区：
文献类型：
--
作者：
Li Yu-Xia;Li Shuai-Shuai;Xue Ding-Ming;Liu Xiao-Qin;Jin Meng-Meng;Sun Lin-Bing
含Cu(I)材料在CO吸附等方面具有很大的应用潜力；然而，开发一种高效和可控的方法来生产Cu(I)位点仍然是一个重大挑战；本文首次报道了在具有代表性的金属-有机骨架MIL-101（Cr）中制备Cu(I)位点的两步双溶剂（DS）策略；这一策略确保了Cu（II）前驱体的引入和Cu(I)的还原都发生在孔隙内部，并显著地减少了Cu物种的聚集。这很难通过传统的Cu（II）引入（湿浸渍）或还原（液相还原）方法来实现。两步DS策略包括选择性还原Cu（II）生成Cu(I)而不生成任何Cu(0)。所得含Cu(I)材料在298 K和1 bar条件下具有良好的CO吸附能力（高达2.42 mmol g−1），远优于CuCl/γ-Al2O3 （1.0 mmol g−1）、CuCl/MCM-41 （0.57 mmol g−1）和CuZSM-5 （0.11 mmol g−1）等基准吸附剂。
Cu(I)-containing materials have great potential in various applications such as in CO adsorption; however, development of an efficient and controllable method to produce Cu(I) sites remains a significant challenge; herein, a two-step double-solvent (DS) strategy is reported for the first time to fabricate Cu(I) sites in a representative metal–organic framework, MIL-101(Cr); this strategy ensures that both introduction of the Cu(II) precursor and its reduction to Cu(I) occur inside the pores and significantly minimizes the aggregation of Cu species. This is difficult to realize through conventional methods used for Cu(II) introduction (wet impregnation) or reduction (liquid-phase reduction). The two-step DS strategy involves selective reduction of Cu(II) to form Cu(I) without the formation of any Cu(0). The obtained Cu(I)-containing materials exhibit an excellent CO adsorption capacity (up to 2.42 mmol g−1) at 298 K and 1 bar, much better than that of the benchmark adsorbents including CuCl/γ-Al2O3 (1.0 mmol g−1), CuCl/MCM-41 (0.57 mmol g−1), and CuZSM-5 (0.11 mmol g−1).
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影响因子：
8.4
作者：
Linbing Sun;Ying Kang;Yao Shi;Yao Jiang;Xiao-Qin Liu
通讯作者：
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影响因子：
9.5
作者：
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通讯作者：
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影响因子：
9.5
作者：
He Qiu-Xia;Jiang Yao;Tan Peng;Liu Xiao-Qin;Qin Ju-Xiang;Sun Lin-Bing
通讯作者：
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影响因子：
8.6
作者：
Ma, Jinghong;Li, Li;Li, Ruifeng
通讯作者：
Li, Ruifeng
影响因子：
15.1
作者：
Imteaz Ahmed;S. Jhung
通讯作者：
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