Supported phosphotungstic acid catalyst on modified activated carbon for Friedel–Crafts alkenylation of diverse aromatics to their corresponding α-arylstyrenes

Zhao, Zhongkui; Wang, Xianhui

doi:10.1016/j.apcata.2015.07.007

Cited by 15 publications

(1 citation statement)

References 37 publications

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“…[77] Stabilized PTA on a modified activated carbon surface showed a 100 % conversion and 95.7 % selectivity, as well as high capability for recycling. [46]…”

Section: Friedel-crafts and Related Reactionsmentioning

confidence: 99%

Recent Progress on Functionalized Nanoporous Heteropoly Acids: From Synthesis to Applications

Ilbeygi,

Jaafar

2024

The Chemical Record

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Functionalized nanoporous heteropoly acids (HPAs) have garnered significant attention in recent years due to their enhanced surface area and porosity, as well as their potential for low‐cost regeneration compared to bulk materials. This review aims to provide an overview of the recent advancements in the synthesis and applications of functionalized HPAs. We begin by introducing the fundamental properties of HPAs and their unique structure, followed by a comprehensive overview of the various approaches employed for the synthesis of functionalized HPAs, including salts, anchoring onto supports, and implementing mesoporous silica sieves. The potential applications of functionalized HPAs in various fields are also discussed, highlighting their boosted performance in a wide range of applications. Finally, we address the current challenges and present future prospects in the development of functionalized HPAs, particularly in the context of mesoporous HPAs. This review aims to provide a comprehensive summary of the recent progress in the field, highlighting the significant advancements made in the synthesis and applications of functionalized HPAs.

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“…[77] Stabilized PTA on a modified activated carbon surface showed a 100 % conversion and 95.7 % selectivity, as well as high capability for recycling. [46]…”

Section: Friedel-crafts and Related Reactionsmentioning

confidence: 99%

Recent Progress on Functionalized Nanoporous Heteropoly Acids: From Synthesis to Applications

Ilbeygi,

Jaafar

2024

The Chemical Record

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NMSBA produced from NMST under the catalysis of supported H₃PW₁₂O₄₀ and Co/Mn/Br catalytic system

Fang

Zhang

et al. 2017

Can J Chem Eng

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The commercial production of 2‐nitro‐4‐methylsulphonylbenzoic acid (NMSBA) is oxidizing 2‐nitro‐4‐methylsulphonyltoluene (NMST) by nitric acid catalyzed with V2O5. A heterogeneous catalytic system composed of phosphotungstic acid supported on activated carbon, Co, Mn, and Br is used to catalyze the production of NMSBA from NMST by oxygen in this paper. The experiments show that the heterogeneous catalytic system composed of HPW@C, Co, Mn, and Br is capable of speeding up the oxidation of NMST to NMSBA by oxygen and acquiring a higher NMST oxidation rate and NMSBA yield than the homogeneous H3PW12O40/Co/Mn/Br catalytic system. The best HPW@C catalyst is obtained by supporting 0.0125 g/g H3PW12O40 on carbon followed by being calcined at 220 °C for 4 h under nitrogen atmosphere. The best heterogeneous catalytic system consists of 2.38 × 10−3 g/g HPW@C, 925 ppm Br, 236 ppm cobalt, and a Mn/Co molar ratio of 2.5. The usage of phosphotungstic acid in the heterogeneous system is diminished substantially.

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Synthesis of sulfated zirconia catalyst using sol–gel technique for alkane isomerization

Kumar

Priyanka

Mangalam

et al. 2022

Reac Kinet Mech Cat

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Supported phosphotungstic acid catalyst on modified activated carbon for Friedel–Crafts alkenylation of diverse aromatics to their corresponding α-arylstyrenes

Cited by 15 publications

References 37 publications

Recent Progress on Functionalized Nanoporous Heteropoly Acids: From Synthesis to Applications

Recent Progress on Functionalized Nanoporous Heteropoly Acids: From Synthesis to Applications

NMSBA produced from NMST under the catalysis of supported H₃PW₁₂O₄₀ and Co/Mn/Br catalytic system

Synthesis of sulfated zirconia catalyst using sol–gel technique for alkane isomerization

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Supported phosphotungstic acid catalyst on modified activated carbon for Friedel–Crafts alkenylation of diverse aromatics to their corresponding α-arylstyrenes

Cited by 15 publications

References 37 publications

Recent Progress on Functionalized Nanoporous Heteropoly Acids: From Synthesis to Applications

Recent Progress on Functionalized Nanoporous Heteropoly Acids: From Synthesis to Applications

NMSBA produced from NMST under the catalysis of supported H3PW12O40 and Co/Mn/Br catalytic system

Synthesis of sulfated zirconia catalyst using sol–gel technique for alkane isomerization

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Product

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NMSBA produced from NMST under the catalysis of supported H₃PW₁₂O₄₀ and Co/Mn/Br catalytic system