Selective Oxidation of Raw Glycerol Using Supported  AuPd Nanoparticles

Chan‐Thaw, Carine E.; Campisi, Sebastiano; Wang, Di; Prati, Laura; Villa, Alberto

doi:10.3390/catal5010131

Cited by 29 publications

(20 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, Chaw‐Thaw et al. investigated the behaviour of supported AuPd nanoparticles for the selective oxidation of raw glycerol . Raw glycerol was obtained from the transesterification of edible rapeseed vegetable oil, and it was compared with a commercial grade glycerol in order to understand the importance of glycerol purity on the catalyst performance.…”

Section: Glycerol Oxidationmentioning

confidence: 99%

Gold Catalysts for the Selective Oxidation of Biomass‐Derived Products

et al. 2018

Self Cite

View full text Add to dashboard Cite

Biomass constitutes a renewable source for new chemical platforms. Among other processes the catalytic ones represent a green alternative when active and selective catalysts can be developed. In this paper, applications of gold and gold‐based catalysts have been reviewed in the field of the selective oxidations. Indeed, from the discovery of the peculiarity of gold as catalytic material, the liquid phase oxidations have been differently viewed. Three important biomass‐derived molecules, namely glucose, hydroxymethyl furfural (HMF) and glycerol have been considered as precursors for products of industrial interest where gold catalysts have played an important role. This review starts from the research on monometallic gold catalysts which have been explored initially and then look at gold as modifier of other metal catalyst. This latter field is still in evolution and probably needs to be look at in the future.

show abstract

Section: Glycerol Oxidationmentioning

confidence: 99%

Gold Catalysts for the Selective Oxidation of Biomass‐Derived Products

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…Of particular current interest is processing glycerol from biodiesel production. Thus, the recent advancements in this field, while focusing mostly on the catalytic transformation enables the use of the trialcohol in chemical reactions such as dehydration, reforming, carbonates formation, hydrogenolysis, acetalization, sorption, etherification, oxidation and esterification, among other reactions [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Binary Oxides with Defined Hierarchy of Pores in the Esterification of Glycerol

et al. 2016

View full text Add to dashboard Cite

Abstract:Various porous binary oxides with elevated textural properties were obtained in this work. The as-synthesized solids were calcined or modified by reflux and extraction processes. Characterizations through SEM, nitrogen physisorption and TEM techniques demonstrated the formation of porous metal oxide networks over all solids. XRD, thermal analyses and FTIR measurements showed the existence of nanosized rutile TiO 2 , tetragonal ZrO 2 , SiO 2 and γ-Al 2 O 3 phases on the solids. The structure and texture of the as-synthesized SiAl sol-gel derived solid resulted in the formation of well-dispersed nanoparticles on the support. The removal of the organic compounds by ethanol extraction or reflux from SiAl resulted in the presence of structures with defined hierarchy of pores. Among the solids studied, the catalytic results in the esterification of glycerol with acetic acid indicated that best performances were obtained over SiAl sample when submitted to extraction and reflux treatments. This was due to the creation of accessible pores, which facilitated the reaction occurrence at glycerol to acetic acid molar ratio = 1:3 and T = 80 • C for 20 h using 75 mg of catalyst. The solids can be reused three times without complete loss of their catalytic performance.

show abstract

“…However, current transesterification technologies for biodiesel production usually generate 10% glycerol as a by-product [3,4], which will represent an economic drawback to the process' viability unless a valuable application for the crude glycerol is found [5]. Generally, hydrogenation and oxidation are traditional techniques for this issue [6][7][8][9][10], but the addition of hydrogen or oxidizer would cause a series of problems in terms of the process and equipment safety. Furthermore, the harsh condition of glycerol hydrogenation and oxidation are also significant challenges.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Acetalization: An Efficient Strategy for High-Value Utilization of Biodiesel-Derived Glycerol

Sun

Dai

et al. 2017

Catalysts

View full text Add to dashboard Cite

Abstract:In this study, an efficient process for high value utilization of biodiesel-derived glycerol was proposed via a simple reaction of acetalization catalyzed by novel catalysts of ester sulfate-functionalized ionic liquids (ILs). The relationship between the IL structure and its catalytic activity was investigated. The effects of reaction conditions, and the substrate adaptability, were also carefully studied. The results demonstrate that ester sulfate-functionalized IL shows excellent catalytic activity on the acetalization of glycerol with aldehyde (ketone). Under the optimized condition, 87% glycerol conversion was obtained with 99% acetal selectivity when glycerol was condensed with cyclohexanone. In particular, 29% of product consists of six-membered compound, an important fine chemical and an excellent precursor in organic chemistry, because of the significant steric-hindrance effect of IL catalyst. Furthermore, the IL catalyst shows good recyclability where insignificant activity loss was exhibited even after six runs.

show abstract

Selective Oxidation of Raw Glycerol Using Supported AuPd Nanoparticles

Cited by 29 publications

References 27 publications

Gold Catalysts for the Selective Oxidation of Biomass‐Derived Products

Gold Catalysts for the Selective Oxidation of Biomass‐Derived Products

Binary Oxides with Defined Hierarchy of Pores in the Esterification of Glycerol

Catalytic Acetalization: An Efficient Strategy for High-Value Utilization of Biodiesel-Derived Glycerol

Contact Info

Product

Resources

About