Green synthesis of functionalized graphene and their use as solid acid catalysts

2018 ◽  
Vol 33 (23) ◽  
pp. 3946-3952 ◽  
Author(s):  
Xu Zhang ◽  
Qiuyu Fan ◽  
He Yang
Keyword(s):  
Green Synthesis ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Functionalized Graphene ◽  
Image Position

Abstract

Superior Performance of Metal-Organic Frameworks over Zeolites as Solid Acid Catalysts in the Prins Reaction: Green Synthesis of Nopol

ChemSusChem ◽  
2013 ◽  
Vol 6 (5) ◽  
pp. 865-871 ◽  
Author(s):  
Maksym Opanasenko ◽  
Amarajothi Dhakshinamoorthy ◽  
Young Kyu Hwang ◽  
Jong-San Chang ◽  
Hermenegildo Garcia ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Solid Acid ◽  
Metal Organic Frameworks ◽  
Solid Acid Catalysts ◽  
Superior Performance ◽  
Acid Catalysts ◽  
Prins Reaction ◽  
Metal Organic

scholarly journals Green Synthesis of Benzylated Aromatics Using Iron Loaded Mesoporous Materials

2008 ◽  
Vol 5 (3) ◽  
pp. 467-472 ◽  
Author(s):  
Muthuraj Esther Leena Preethi ◽  
Shanmugam Revathi ◽  
Thiripuranthagan Sivakumar
Keyword(s):  
Green Synthesis ◽  
Mesoporous Materials ◽  
Solid Acid ◽  
Catalytic Amount ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Mcm 41

Syntheses of benzylated aromatics like diphenylmethane and its derivatives by the condensation of benzene or toluene oro-xylene with benzylchloride or 4-methylbenzylchloride in the presence of a catalytic amount of various iron loaded mesoporous solid acid catalysts such as Fe/Al-MCM-41 (Si/Al=25), Fe/Al-MCM-41 (Si/Al=50) and Fe/Al-MCM-41 (Si/Al=100) are reported.

Metal ion-exchanged zeolites as highly active solid acid catalysts for the green synthesis of glycerol carbonate from glycerol

RSC Advances ◽  
2015 ◽  
Vol 5 (19) ◽  
pp. 14286-14293 ◽  
Author(s):  
Vijaykumar S. Marakatti ◽  
Anand B. Halgeri
Keyword(s):  
Green Synthesis ◽  
Metal Ion ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Glycerol Carbonate ◽  
Acid Catalysts ◽  
Highly Efficient ◽  
Highly Active

The application of metal ion-exchanged zeolites as highly efficient catalysts for the synthesis of glycerol carbonate from glycerol carbonylation is reported.

scholarly journals GREEN SYNTHESIS OF ISOPULEGOL FROM CITRONELLAL CATALYSED BY ZEOLITE BASED SOLID ACID CATALYSTS

2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Indri Badria Adilina ◽  
Egi Agustian
Keyword(s):  
Green Synthesis ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts

Zeolit alam (NZ) telah dimodifikasi dengan penambahan asam (H-NZ) dan diaplikasikan sebagai katalis asam padat untuk green sintesis isopulehol dari minyak sereh wangi. Sintesis ini menlibatkan reaksi siklisasi sitronelal menjai disopulegol pada suhu 50 sampai 120oC. Aktivitas katalis H-NZ terbukti lebih tinggi dari katalis H-ZSM5 yang tersedia di pasar dan lebih unggul dari katalis asam padat berbasis bentonit. Perolehan terbaik sebesar 87% isopulegol diperoleh menggunakan katalis H-NZ pada 100oC selama 3 jam tanpa penggunaan pelarut reaksi.

scholarly journals Corncob residue as heterogeneous acid catalyst for green synthesis of biodiesel: A short review

2021 ◽  
Vol 6 (2) ◽  
pp. 60-68
Author(s):  
Primata Mardina ◽  
Hesti Wijayanti ◽  
Abubakar Tuhuloula ◽  
Erita Hijriyati ◽  
Sarifah
Keyword(s):  
Green Synthesis ◽  
Solid Acid ◽  
Fatty Acid Content ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Raw Material ◽  
Biodiesel Production ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Heterogeneous Acid Catalyst

The utilization of an appropriate catalyst in biodiesel production depends on the free fatty acid content of vegetable oil as a feedstock. Recently, heterogeneous acid catalysts are widely chosen for biodiesel production. However, these catalysts are non-renewable, highly expensive and low stability. Due to the aforementioned drawbacks of commercial heterogeneous acid catalyst, a number of efforts have been made to develop renewable green solid acid catalysts derived from biomass. Published literature revealed that the application of the biomass derived solid acid catalysts can achieve up to 98% yield of biodiesel. This article focused on corncob as raw material in solid acid catalyst preparation for biodiesel production. The efficient preparation method and performance comparation are discussed here. The corncob derived heterogeneous acid catalysts provides an environmentally friendly and green synthesis for biodiesel production.

Metal ion-exchanged zeolites as solid acid catalysts for the green synthesis of nopol from Prins reaction

2014 ◽  
Vol 4 (11) ◽  
pp. 4065-4074 ◽  
Author(s):  
Vijaykumar S. Marakatti ◽  
Anand B. Halgeri ◽  
Ganapati V. Shanbhag
Keyword(s):  
Green Synthesis ◽  
Metal Ion ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Prins Reaction ◽  
Highly Active

The application of metal ion-exchanged zeolites as highly active and selective catalysts for the synthesis of nopol from the Prins reaction of β-pinene is reported.

Green synthesis of bisphenol F over 12-phosphotungstic acid supported on acid-activated palygorskite

RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 62394-62401 ◽  
Author(s):  
Ran Liu ◽  
Xiaozhen Niu ◽  
Xinnian Xia ◽  
Zebing Zeng ◽  
Guozhong Zhang ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Solid Acid ◽  
Phosphotungstic Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Bisphenol F ◽  
Mild Conditions

Hydroxyalkylation of phenol to bisphenol F under mild conditions over various solid acid catalysts.

Preparation of Strong Acid Catalysts by Sulfate Treatment of Calcined Boehmite

1992 ◽  
Vol 57 (11) ◽  
pp. 2241-2247 ◽  
Author(s):  
Tomáš Hochmann ◽  
Karel Setínek
Keyword(s):  
Catalytic Activity ◽  
Surface Area ◽  
Aluminum Sulfate ◽  
Solid Acid ◽  
Strong Acid ◽  
Acid Strength ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Preparation Methods ◽  
Indicator Method

Solid acid catalysts with acid strength of -14.52 < H0 < -8.2 were prepared by sulfate treatment of the samples of boehmite calcined at 105-800 °C. Two preparation methods were used: impregnation of the calcined boehmite with 3.5 M H2SO4 or mixing of the boehmite samples with anhydrous aluminum sulfate, in both cases followed by calcination in nitrogen at 650 °C. The catalysts were characterized by measurements of surface area, adsorption of pyridine and benzene, acid strength measurements by the indicator method and by catalytic activity tests in the isomerization of cyclohexene, p-xylene and n-hexane. Properties of the catalysts prepared by both methods were comparable.

scholarly journals Metal–Organic Framework-Based Solid Acid Materials for Biomass Upgrade

2021 ◽  
Author(s):  
Yutian Qin ◽  
Jun Guo ◽  
Meiting Zhao
Keyword(s):  
High Efficiency ◽  
Solid Acid ◽  
Metal Organic Framework ◽  
Acid Sites ◽  
Solid Acid Catalysts ◽  
Future Research ◽  
Acid Catalysts ◽  
Metal Organic ◽  
Biomass Transformation ◽  
Organic Framework

AbstractBiomass is a green and producible source of energy and chemicals. Hence, developing high-efficiency catalysts for biomass utilization and transformation is urgently demanded. Metal–organic framework (MOF)-based solid acid materials have been considered as promising catalysts in biomass transformation. In this review, we first introduce the genre of Lewis acid and Brønsted acid sites commonly generated in MOFs or MOF-based composites. Then, the methods for the generation and adjustment of corresponding acid sites are overviewed. Next, the catalytic applications of MOF-based solid acid materials in various biomass transformation reactions are summarized and discussed. Furthermore, based on our personal insights, the challenges and outlook on the future development of MOF-based solid acid catalysts are provided. We hope that this review will provide an instructive roadmap for future research on MOFs and MOF-based composites for biomass transformation.

scholarly journals Nonthermal Plasma Induced Fabrication of Solid Acid Catalysts for Glycerol Dehydration to Acrolein

Catalysts ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 391
Author(s):  
Lu Liu ◽  
Xiaofei Philip Ye
Keyword(s):  
Solid Acid ◽  
Nonthermal Plasma ◽  
Temperature Programmed Desorption ◽  
Argon Atmosphere ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Pyridine Adsorption ◽  
X Ray ◽  
Glycerol Dehydration ◽  
Temperature Programmed

The feasibility of fabricating better solid acid catalysts using nonthermal plasma (NTP) technology for biobased acrolein production is demonstrated. NTP discharge exposure was integrated in catalyst fabrication in air or argon atmosphere. The fabricated catalysts were characterized by Brunauer–Emmett–Teller surface area analysis, temperature-programmed desorption of ammonia, X-ray powder diffraction and Fourier-transform infrared spectroscopy of pyridine adsorption, in comparison to regularly prepared catalysts as a control. Further, kinetic results collected via glycerol dehydration experiments were compared, and improvement in acrolein selectivity was displayed when the catalyst was fabricated in the argon NTP, but not in the air NTP. Possible mechanisms for the improvement were also discussed.

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