Efficient and rapid transformation of high silica CHA zeolite from FAU zeolite in the absence of water
Xiong, Xin2; Yuan, Dingzhong1,2; Wu, Qinming1; Chen, Fang1; Meng, Xiangju1; Lv, Ruihua2; Dai, Daniel3; Maurer, Stefan3; McGuire, Robert4; Feyen, Mathias4; Mueller, Ulrich4; Zhang, Weiping5; Yokoi, Toshiyuki6; Bao, Xinhe7; Gies, Hermann8; Marler, Bernd8; De Vos, Dirk E.9; Kolb, Ute10; Moini, Ahmad11; Xiao, Feng-Shou1
Indexed BySCI
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
AbstractHigh silica CHA zeolite plays an important role in selective catalytic reduction of NOx with NH3 (NH3-SCR), but its synthesis is not highly efficient due to the use of a relatively high-cost structural directing agent (SDA) N, N, N-trimethyl-adamantammonium hydroxide (TMAdaOH) and relatively long crystallization time under hydrothermal conditions. Herein, we report an efficient and rapid synthesis of a high silica CHA zeolite possessing good crystallinity and uniform crystals (CHA-ST). The method includes interzeolite transformation of high silica FAU zeolite in the absence of water but the presence of zeolite seeds and a bromide form of the SDA. The absence of water in the synthesis significantly improves the zeolite yield by avoiding dissolution of aluminosilicate species in aqueous media, while the addition of zeolite seeds remarkably enhances the crystallization rate under solvent-free conditions. In addition, this route allows the use of a low-cost bromide form of the SDA. Catalytic tests in the NH3-SCR show that copper-exchanged CHA-ST (Cu-CHA-ST) exhibits comparable catalytic properties to those of Cu-SSZ-13 obtained from the conventional hydrothermal route.
WOS IDWOS:000401316100029
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Zhejiang Univ, Key Lab Appl Chem Zhejiang Prov, Hangzhou 310028, Peoples R China
2.East China Univ Technol, Dept Mat Sci & Engn, Nanchang 330013, Jiangxi, Peoples R China
3.BASF Catalysts Shanghai Co Ltd, Jinqiao Export Proc Zone, 239 Luqiao Rd, Shanghai 201206, Peoples R China
4.BASF SE, GCC PZ M311, D-67056 Ludwigshafen, Germany
5.Dalian Univ Technol, State Key Lab Fine Chem, Linggong Rd 2, Dalian 116024, Peoples R China
6.Tokyo Inst Technol, Chem Resources Lab, Yokohama, Kanagawa 2268503, Japan
7.Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
8.Ruhr Univ Bochum, Inst Geol Mineral & Geophys, D-44780 Bochum, Germany
9.Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, Kasteelpk Arenberg 23, B-3001 Leuven, Belgium
10.Johannes Gutenberg Univ Mainz, Inst Phys Chem, D-55128 Mainz, Germany
11.BASF Corp, Catalysts LLC, Iselin, NJ 08830 USA
Recommended Citation
GB/T 7714
Xiong, Xin,Yuan, Dingzhong,Wu, Qinming,et al. Efficient and rapid transformation of high silica CHA zeolite from FAU zeolite in the absence of water[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5:9076-9080.
APA Xiong, Xin.,Yuan, Dingzhong.,Wu, Qinming.,Chen, Fang.,Meng, Xiangju.,...&Xiao, Feng-Shou.(2017).Efficient and rapid transformation of high silica CHA zeolite from FAU zeolite in the absence of water.JOURNAL OF MATERIALS CHEMISTRY A,5,9076-9080.
MLA Xiong, Xin,et al."Efficient and rapid transformation of high silica CHA zeolite from FAU zeolite in the absence of water".JOURNAL OF MATERIALS CHEMISTRY A 5(2017):9076-9080.
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