2017
DOI: 10.1021/acscatal.7b02705
|View full text |Cite
|
Sign up to set email alerts
|

Synthesis of NiMo Catalysts Supported on Gallium-Containing Mesoporous Y Zeolites with Different Gallium Contents and Their High Activities in the Hydrodesulfurization of 4,6-Dimethyldibenzothiophene

Abstract: Mesoporous MY-xGa zeolites exhibiting both crystallized pore walls and narrowly dispersed mesopores with different Ga content were successfully synthesized. The synthesized samples were characterized by XRD, N 2 adsorption desorption isotherms, SEM, TEM, XPS, FTIR, 29 Si MAS NMR, 71 Ga MAS NMR, and Py-FTIR methods. The results show that the synthesized samples exhibit unique open channel like mesopore systems and outstanding crystallite natures; no nonframework Ga species were observed over the MY-xGa series s… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2
1

Citation Types

0
66
0

Year Published

2018
2018
2024
2024

Publication Types

Select...
10

Relationship

2
8

Authors

Journals

citations
Cited by 94 publications
(66 citation statements)
references
References 46 publications
0
66
0
Order By: Relevance
“…However, the amount of LAS (both the weak and strong acid sites) increased sharply after the introduction of 1 wt.% nickel by the impregnation method (from 22.57 to 104.5 µmol•g −1 ) and increased slightly with the further introduction of nickel to 2 wt.% (from 104.5 to 111.5 µmol•g −1 ). This result can be explained by the fact that BAS are only generated from framework Al species in the zeolites; the impregnation solution of nickel nitrate was acidic, so the process of impregnation led to dealumination from ZSM-5 zeolite frameworks and thus decreased the BAS (Fricke et al, 2000;Zhou et al, 2017b). Furthermore, some LAS can be formatted in the NiO granular (Zhou et al, 2017a).…”
Section: Resultsmentioning
confidence: 99%
“…However, the amount of LAS (both the weak and strong acid sites) increased sharply after the introduction of 1 wt.% nickel by the impregnation method (from 22.57 to 104.5 µmol•g −1 ) and increased slightly with the further introduction of nickel to 2 wt.% (from 104.5 to 111.5 µmol•g −1 ). This result can be explained by the fact that BAS are only generated from framework Al species in the zeolites; the impregnation solution of nickel nitrate was acidic, so the process of impregnation led to dealumination from ZSM-5 zeolite frameworks and thus decreased the BAS (Fricke et al, 2000;Zhou et al, 2017b). Furthermore, some LAS can be formatted in the NiO granular (Zhou et al, 2017a).…”
Section: Resultsmentioning
confidence: 99%
“…Alumina and SA(0) materials had type H1 hysteresis characterizing solids with porous networks of uniform size and shape [42] where capillary condensation [43] started at ∼P/P s = 0.45. On the other hand, in SA-modified solids the hystheresis shape progressively shifted to H3 type suggesting presence of slit-shaped pores of non-uniform size and/ or shape [42] that could be provoked by pore mouth narrowing [44].…”
Section: Textural Characterization Of Materialsmentioning
confidence: 99%
“…The binding energies for sulfide Mo 3d5/2 species, including Mo 6+ (MoO 3 ), Mo 5+ (oxysulfide), Mo 4+ (MoS 2 ) were 233.0 ± 0.3 eV, 230.7 ± 0.3 eV and 229.4 ± 0.3 eV, respectively. Moreover, the peak at 226.0 ± 0.3 eV could be assigned to S2s [38]. The binding energies ascribed to Mo 3d3/2 species were fixed at adding 3.1 eV based on Mo 3d5/2 species.…”
Section: Characterization Of Used Catalystsmentioning
confidence: 99%