Addition/Correction pubs.acs.org/JACS
Correction to “A Microporous Aluminosilicate with 12‑, 12‑, and 8‑Ring Pores and Isolated 8‑Ring Channels” Naoto Nakazawa, Takuji Ikeda,* Norihito Hiyoshi, Yuka Yoshida, Qiao Han, Satoshi Inagaki, and Yoshihiro Kubota* J. Am. Chem. Soc. 2017, 139, 7989−7997. DOI: 10.1021/jacs.7b03308 S Supporting Information *
The same changes apply for the Supporting Information, starting from the first sentence of the section “Synthesis of zeolite YNU-5”. Page 7995. In Figure 7, and likewise in Figure S14, the labels on the vertical axes should be changed from “Product distribution” to “Yield” because the data are the yields of products. The corrected Figure 7 is shown below.
Concerning the experimental details, the changes shown below, including some corrections, are necessary to describe the procedures as exactly as possible and to help readers readily reproduce the synthesis. Page 7990. In the first subsection of the Experimental Section, “Synthesis of YNU-5”, the text following the third sentence should be replaced with the following:
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Aqueous Me2Pr2N+OH− solution (2.097 mmol g−1, 16.21 g, 34.0 mmol), aqueous NaOH solution (3.200 mmol g−1, 9.37 g, 30.0 mmol), aqueous KOH solution (3.153 mmol g−1, 9.53 g, 30.0 mmol), and 21.39 g of colloidal silica (Ludox AS-40, DuPont, 41.3 wt % SiO2, 8.83 g SiO2, 147.0 mmol SiO2) were mixed in a 150 mL Teflon beaker and stirred for 3 h on a hot plate (temperature of the mixture was maintained at 333 K), allowing 20.26 g of water to evaporate. (The “20.26 g” includes 4.41 g of rinse water used during the procedure.) After cooling down to room temperature, 4.99 g of FAU-type zeolite (Tosoh HSZ-350HUA, Si/Al = 5.3) was added, and the mixture was stirred for 10 min. It should be noted that the FAU-type zeolite adsorbs considerable water (ca. 20−26 wt %) when stored under atmospheric conditions in our laboratory. Thus, we usually estimate the water content by thermogravimetric analysis just before use. For this example, contents of SiO2, Al2O3, and H2O were estimated to be 63.9, 10.2, and 25.9 wt %, respectively. The resulting mixture, having the final weight 45.64 g and the molar composition 1.0SiO2/0.025 Al 2 O 3 /0.17Me 2 Pr 2 N + OH − /0.15NaOH/0.15KOH/7.0H 2 O, was placed in a 125 mL Teflon-lined autoclave within a convection oven and maintained at 433 K for 165 h.
The Supporting Information is available free of charge on the ACS Publications website at DOI: 10.1021/jacs.7b08094. Materials and Methods, Figures S1−S15, Table S1, and References S1−S7 (corrected) (PDF)
Figure 7. Dimethyl ether (DME)-to-olefin reaction over YNU-5 catalysts with Si/Al ratios of (a) 8, (b) 61, (c) 110, and (d) 160. Pretreatment conditions: 823 K, 1 h under air flow (flow rate, 40 cm3 (NTP) min−1). Reaction conditions: catalyst weight 100 mg; W/F = 20 g-cat h mol−1; pellet size, 500−600 μm; He flow rate, 40.0 cm3 (NTP) min−1; reaction temperature 673 K. © 2017 American Chemical Society
ASSOCIATED CONTENT
S Supporting Information *
Published: August 18, 2017 12102
DOI: 10.1021/jacs.7b08094 J. Am. Chem. Soc. 2017, 139, 12102−12102
