Direct synthesis of Zn-incorporated nano-ZSM-5 zeolite by a dry gel conversion method for improving catalytic performance of methanol to aromatics reaction

AbstractTo accelerate the discovery of materials through computations and experiments, a well-established protocol closely bridging these methods is required. We introduce a high-throughput screening protocol for the discovery of bimetallic catalysts that replace palladium (Pd), where the similarities in the electronic density of states patterns were employed as a screening descriptor. Using first-principles calculations, we screened 4350 bimetallic alloy structures and proposed eight candidates expected to have catalytic performance comparable to that of Pd. Our experiments demonstrate that four bimetallic catalysts indeed exhibit catalytic properties comparable to those of Pd. Moreover, we discover a bimetallic (Ni-Pt) catalyst that has not yet been reported for H2O2 direct synthesis. In particular, Ni61Pt39 outperforms the prototypical Pd catalyst for the chemical reaction and exhibits a 9.5-fold enhancement in cost-normalized productivity. This protocol provides an opportunity for the catalyst discovery for the replacement or reduction in the use of the platinum-group metals.

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Direct synthesis, characterization and catalytic performance of Al-SBA-15 mesoporous catalysts with varying Si/Al molar ratios

Journal of Porous Materials ◽

10.1007/s10934-012-9626-6 ◽

2012 ◽

Vol 20 (3) ◽

pp. 539-546 ◽

Cited By ~ 13

Author(s):

Xiucheng Zheng ◽

Beibei Dong ◽

Chengyuan Yuan ◽

Ke Zhang ◽

Xiangyu Wang

Keyword(s):

Direct Synthesis ◽

Catalytic Performance ◽

Mesoporous Catalysts ◽

Molar Ratios

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Direct synthesis of mesoporous TiO2 and its catalytic performance in DBT oxidative desulfurization

Microporous and Mesoporous Materials ◽

10.1016/j.micromeso.2008.04.031 ◽

2008 ◽

Vol 116 (1-3) ◽

pp. 378-385 ◽

Cited By ~ 47

Author(s):

D. Huang ◽

Y.J. Wang ◽

Y.C. Cui ◽

G.S. Luo

Keyword(s):

Direct Synthesis ◽

Oxidative Desulfurization ◽

Catalytic Performance ◽

Mesoporous Tio2

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Effects of surface hydroxyl groups induced by the co-precipitation temperature on the catalytic performance of direct synthesis of isobutanol from syngas

Fuel ◽

10.1016/j.fuel.2018.09.143 ◽

2019 ◽

Vol 237 ◽

pp. 1021-1028 ◽

Cited By ~ 6

Author(s):

Tao Zhang ◽

Yingquan Wu ◽

Xiaofeng Gao ◽

Hongjuan Xie ◽

Guohui Yang ◽

...

Keyword(s):

Direct Synthesis ◽

Catalytic Performance ◽

Hydroxyl Groups ◽

Surface Hydroxyl ◽

Precipitation Temperature ◽

Surface Hydroxyl Groups ◽

Co Precipitation

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Rapid synthesis of SAPO-34 nanocatalyst by dry gel conversion method templated with morphline: Investigating the effects of experimental parameters

Microporous and Mesoporous Materials ◽

10.1016/j.micromeso.2014.06.028 ◽

2014 ◽

Vol 197 ◽

pp. 229-236 ◽

Cited By ~ 35

Author(s):

Sima Askari ◽

Zahra Sedighi ◽

Rouein Halladj

Keyword(s):

Rapid Synthesis ◽

Dry Gel Conversion ◽

Conversion Method ◽

Experimental Parameters

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Hierarchical H-ZSM5 zeolites based on natural kaolinite as a high-performance catalyst for methanol to aromatic hydrocarbons conversion

Scientific Reports ◽

10.1038/s41598-019-54089-y ◽

2019 ◽

Vol 9 (1) ◽

Cited By ~ 3

Author(s):

Ahmad Asghari ◽

Mohammadreza Khanmohammadi Khorrami ◽

Sayed Habib Kazemi

Keyword(s):

Pore Size ◽

Aromatic Hydrocarbons ◽

High Performance ◽

Low Cost ◽

Direct Synthesis ◽

Fixed Bed ◽

Methanol Conversion ◽

Catalytic Performance ◽

Fixed Bed Reactor ◽

Good Prospect

AbstractThe present work introduces a good prospect for the development of hierarchical catalysts with excellent catalytic performance in the methanol to aromatic hydrocarbons conversion (MTA) process. Hierarchical H-ZSM5 zeolites, with a tailored pore size and different Si/Al ratios, were synthesized directly using natural kaolin clay as a low-cost silica and aluminium resource. Further explored for the direct synthesis of hierarchical HZSM-5 structures was the steam assisted conversion (SAC) with a cost-effective and green affordable saccharide source of high fructose corn syrup (HFCS), as a secondary mesopore agent. The fabricated zeolites exhibiting good crystallinity, 2D and 3D nanostructures, high specific surface area, tailored pore size, and tunable acidity. Finally, the catalyst performance in the conversion of methanol to aromatic hydrocarbons was tested in a fixed bed reactor. The synthesized H-ZSM5 catalysts exhibited superior methanol conversion (over 100 h up to 90%) and selectivity (over 85%) in the methanol conversion to aromatic hydrocarbon products.

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