Sulfonated graphene as water-tolerant solid acid catalyst

Ji, Junyi; Zhang, Guanghui; Chen, Hongyu; Wang, Shulan; Zhang, Guoliang; Zhang, Fengbao; Fan, Xiaobin

doi:10.1039/c0sc00484g

Cited by 246 publications

(201 citation statements)

References 23 publications

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“…doi:10.1016/j.carbon.2011. 10.007 demonstrated as a water-stable catalyst for the hydrolysis of ethyl acetate [18]. This study demonstrates the catalytic performance and reusability of graphene and its derivatives for the synthesis of furfural from xylose in aqueous solutions.…”

Section: Introductionmentioning

confidence: 87%

“…Pristine graphene had a ratio of 0.06 while the other three materials had ratios that ranged from 0.78 to 1.16. The disruption of the sp 2 carbon network by functionalizing with COOH, epoxide, hydroxyl and aryl SO 3 H groups contributes significantly to the intensity change in the D band [18]. 13 C MAS NMR was performed to further examine the chemical reactions involved in the synthesis from GO to SG (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…This is another example of how low cost, reusable carbocatalysts can be used to promote reactions that convert biomass to sustainable chemical building blocks [15,16]. Doubtlessly, the use of SGO as a carbocatalyst can be extended to other important organic reactions [45] as exemplified by its reusability in the hydrolysis of ethyl acetate with comparable activity to H 2 SO 4 [18]. …”

Section: Discussionmentioning

confidence: 99%

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Carbocatalytic dehydration of xylose to furfural in water

Lam

Chong

Majid

et al. 2012

Carbon

156

114

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Section: Introductionmentioning

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Carbocatalytic dehydration of xylose to furfural in water

Lam

Chong

Majid

et al. 2012

Carbon

156

114

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“…These catalysts are known to be active in esterication [43][44][45][46][47] and hydrolysis reactions, 48,49 as well as in the production of acrylic acid from glycerol and acrolein. 50 Accordingly, we screened zeolites, commercial ion-exchange resins, (mixed) metal-oxides, and sulfonated carbonaceous and siliceous catalysts.…”

Section: Catalyst Testing and Structure-activity Considerationsmentioning

confidence: 99%

Catalytic acetoxylation of lactic acid to 2-acetoxypropionic acid, en route to acrylic acid

et al. 2015

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Catalytic acetoxylation of lactic acid to 2-acetoxypropionic acid, en route to acrylic acid Beerthuis, R.; Granollers, M.; Brown, D.R.; Salavagione, H.J.; Rothenberg, G.; Shiju, N.R. Published in: RSC Advances DOI:10.1039/c4ra12695eLink to publication Citation for published version (APA):Beerthuis, R., Granollers, M., Brown, D. R., Salavagione, H. J., Rothenberg, G., & Shiju, N. R. (2015). Catalytic acetoxylation of lactic acid to 2-acetoxypropionic acid, en route to acrylic acid. RSC Advances, 5(6), 4103-4108. DOI: 10.1039/c4ra12695e General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. We present an alternative synthetic route to acrylic acid, starting from the platform chemical lactic acid and using heterogeneous catalysis. To improve selectivity, we designed an indirect dehydration reaction that proceeds via acetoxylation of lactic acid to 2-acetoxypropionic acid. This intermediate can then be pyrolized to acrylic acid. Acetic acid is used both as a reagent and a solvent in the first step, and may be recovered in the subsequent pyrolysis step. We tested a range of solid acid catalysts for the acetoxylation step (Y zeolites, sulfated zirconia, ion-exchange resins, sulfonated graphene, and various sulfonated silica gels and mixed oxides). Recycling studies were carried out for the most active catalysts. To enable quantitative analysis using gas chromatography we also developed a reliable silylation derivatization method, which is also reported. These results open opportunities for improving the biorenewable production of acrylic acid.

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“…7 GO and reduced GO (RGO) were shown to inhibit growth of E. coli while showing insignificant cytotoxicity, thus leading to their incorporating into antibacterial paper. 8 SG acts as a water-stable catalyst for the hydrolysis of ethyl acetate, 9 whereas SGO is capable of dehydrating xylose to furfural in water. 10 Graphene has proven as a promising biocompatible scaffold that does not hamper the proliferation of human mesenchymal stem cells, but accelerates their specificd i fferentiation into bone cells.…”

Section: ■ Introductionmentioning

confidence: 99%