ZSM-5纳米薄片定向堆积合成分子筛团聚体
收稿日期: 2021-04-28
网络出版日期: 2022-03-14
Synthesis of ZSM-5 aggregates assembled by oriented stacking nanosheets
Received date: 2021-04-28
Online published: 2022-03-14
李孝国 , 米晓彤 , 曹辉 , 常洋 , 张永坤 , 李永恒 . ZSM-5纳米薄片定向堆积合成分子筛团聚体[J]. 无机盐工业, 2022 , 54(1) : 112 -116 . DOI: 10.19964/j.issn.1006-4990.2021-0278
A new synthetic method of nanocrystalline silicate-1（S-2） was developed.Compared with the conventional sili-cate-1（S-1）,S-2 had smaller particle size and smooth crystal surface.When S-2 was used as seed crystal to synthesize nano-ZSM-5 aggregates,the ZSM-5 aggregates were monodisperse particles with size of 0.8~1.0 μm,which were composed by the ZSM-5 crystals with the b-axis thickness of 60~80 nm.The ZSM-5 nanosheets were regularly stacked along the b-axis forming a unique pore structure,including a uniform pore size distribution with an average size of 1.3 nm and a wide pore size distribution of 25 nm.
Key words： ZSM-5 aggregates; seed; hierarchical pore; nanosheet
| [1] | WU Z, ZHAO K, ZHANG Y, et al. Synjournal and consequence of aggregated nanosized ZSM-5 zeolite crystals for methanol to propy-lene reaction[J]. Industrial & Engineering Chemistry Research, 2019, 58:10737-10749. |
| [2] | DAI W, KOUVATAS C, TAI W, et al. Platelike MFI crystals with controlled crystal faces aspect ratio[J]. Journal of the American Che-mical Society, 2021, 143(4):1993-2004. |
| [3] | MINTOVA S, JABER M, VALTCHEV V. Nanosized microporous crystals:Emerging applications[J]. Chemical Society Reviews, 2015, 44(20):7207-7233. |
| [4] | ZHANG C, KWAK G, PARK H G, et al. Light hydrocarbons to BTEX aromatics over hierarchical HZSM-5:Effects of alkali treatment on catalytic performance[J]. Microporous and Mesoporous Materials, 2019, 276:292-301. |
| [5] | WANNAPAKDEE W, SUTTIPAT D, DUGKHUNTOD P, et al. Aro-matization of C5 hydrocarbons over Ga-modied hierarchical HZSM-5 nanosheets[J]. Fuel, 2018, 236:1243-1253. |
| [6] | WANG N, HOU Y, SUN W, et al. Modulation of b-axis thickness within MFI zeolite:Correlation with variation of product diffusion and coke distribution in the methanol-to-hydrocarbons conversion[J]. Applied Catalysis B Environmental, 2019, 243:721-733. |
| [7] | HUANG X, WANG C, ZHU Y, et al. Facile synjournal of ZSM-5 na-nosheet arrays by preferential growth over MFI zeolite[100] face for methanol conversion[J]. Microporous and Mesoporous Materials, 2019, 288.Doi: 10.1016/j.micromeso.2019.109573. |
| [8] | NA K, CHOI M, PARK W, et al. Pillared MFI zeolite nanosheets of a single-unit-cell thickness[J]. Journal of the American Chemical Society, 2010, 132(12):4169-4177. |
| [9] | FENG R, YAN X, HU X, et al. Phosphorus-modified b-axis oriented hierarchical ZSM-5 zeolites for enhancing catalytic performance in a methanol to propylene reaction[J]. Applied Catalysis A:General, 2020, 594.Doi: 10.1016/j.apcata.2020.117464. |
| [10] | ZHANG L, SONG Y, LI G, et al. F-assisted synjournal of a hierarchi-cal ZSM-5 zeolite for methanol to propylene reaction:A b-oriented thinner dimensional morphology[J]. RSC Advances, 2015, 5(75):61354-61363. |
| [11] | LIU Y, ZHOU X, PANG X, et al. Improved para-xylene selectivity in meta-xylene isomerization over zsm-5 crystals with relatively long b-axis length[J]. ChemCatChem, 2013, 5(6):1517-1523. |
| [12] | 边凯, 侯章贵, 段欣瑞 等. 二维HZSM-5纳米片的合成及催化苯与稀乙烯烷基化制乙苯[J]. 高等学校化学学报, 2019, 40(4):784-792. |
| [13] | 常洋, 李孝国, 侯章贵, 等. 低硅铝比纳米团聚体ZSM-5的合成工艺研究[J]. 无机盐工业, 2020, 52(6):92-95. |
| [14] | LIU Y, ZHOU X, PANG X, et al. Improved para-xylene selectivity in meta-xylene isomerization over zsm-5 crystals with relatively long b-axis length[J]. ChemCatChem, 2013, 5(6):1517-1523. |
| [15] | NADA M H, LARSEN S C. Insight into seed-assisted template free synjournal of ZSM-5 zeolites[J]. Microporous and Mesoporous Ma-terials, 2017, 239:444-452. |
| [16] | HAMIDZADEH M, KOMEILI S, SAEIDI M. Seed-induced synthe-sis of ZSM-5 aggregates using the Silicate-1 as a seed:Character-ization and effect of the Silicate-1 composition[J]. Microporous and Mesoporous Materials, 2018, 268:153-161. |
| [17] | JAVDANI A, AHMADPOUR J, YARIPOUR F. Nano-sized ZSM-5 zeolite synthesized via seeding technique for methanol conversi-ons:A review[J]. Microporous and Mesoporous Materials, 2019, 284:443-458. |
| [18] | NIU X, GAO J, WANG K, et al. Influence of crystal size on the ca-talytic performance of H-ZSM-5 and Zn/H-ZSM-5 in the conver-sion of methanol to aromatics[J]. Fuel Processing Technology, 2017, 157:99-107. |
| [19] | GOODARZI F, HERRERO I P, KALANTZOPOULOS G N, et al. Synjournal of mesoporous ZSM-5 zeolite encapsulated in an ultra-thin protective shell of silicalite-1 for MTH conversion[J]. Micro-porous and Mesoporous Materials, 2019, 292.Doi: 10.1016/j.micro-meso.2019.109730. |
/
| 〈 |
|
〉 |
