Study on catalyst selection for electrochemical valorization of glycerol

Houache, Mohamed S. E.; Hughes, Kara; Baranova, Elena A.

doi:10.1039/c9se00108e

Cited by 116 publications

(132 citation statements)

References 165 publications

Supporting

Mentioning

130

Contrasting

Order By: Relevance

“…While many products used to be obtained at metallic electrocatalysts, 35,[40][41][42] only two main products have been obtained in this study, for instance formic and glycolic acids at the selectivity of 66 and 32%, respectively (oxalic acid is 1.8%, glyceric acid is 0.7 % and tartronic acid 0.1%). The determined exchanged number of electrons that are transferred is about 6, which is in agreement with the production of the carboxylate forms of those products in alkaline media so that the faradaic yield is about 86%.…”

Section: The Experimental Procedures Are Reported In the Electronic Smentioning

confidence: 95%

Enhanced electrocatalytic activity and selectivity of glycerol oxidation triggered by nanoalloyed silver–gold nanocages directly grown on gas diffusion electrodes

et al. 2020

View full text Add to dashboard Cite

show abstract

Section: The Experimental Procedures Are Reported In the Electronic Smentioning

confidence: 95%

Enhanced electrocatalytic activity and selectivity of glycerol oxidation triggered by nanoalloyed silver–gold nanocages directly grown on gas diffusion electrodes

et al. 2020

View full text Add to dashboard Cite

show abstract

“…It is worth mentioning that the reported precious metal-free materials to electro-catalyze the oxidation of glycerol need a potential range of 1.4-1.9 V vs RHE in order to get high current densities, as recently reviewed by the group of Baranova. 27 Given the higher potential, the idea of using an organic compound to lower the potential of the anode apparently violates the initial need of reducing the proportion of energy consumed by the anode, of the order of 90% in conventional water electrolyzer. 18,23 Those facts explain why the presence of the three metals Au, Pt or Pd, which are the only species giving good activity in low potentials, is practically unavoidable for the development of reliable anodes for the organics oxidation.…”

Section: Introductionmentioning

confidence: 99%

Bromide-Regulated Anisotropic Growth of Desert-Rose-Like Nanostructured Gold onto Carbon Fiber Electrodes as Freestanding Electrocatalysts

Morandi

Tuleushova

Tingry

et al. 2020

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

Three-dimensional (3D) gas diffusion electrodes (GDEs) as support for catalytic nanoparticles are important to the electrolysis and fuel cells fields to facilitate reactant transport and distribution, and reach higher current densities. Hence, the assembly of nanostructured catalytic particles directly onto GDEs during the synthesis could be a powerful one-step strategy to target high performance and long-term durability thanks to the induced strong nanoparticlesupport interaction. We report herein the use of bromide anions to shape the anisotropic growth of nanostructured desert-rose-like gold particles directly onto the GDE, as a freestanding GDE-Au catalyst for straightforward use in electrolysis without an additional step. We showed that the bromide ions determine the anisotropy of the particles, resulting in a growth of gold into nanoplates enclosed by (111) facets. The formation of hierarchical nanostructured 3D Au at the GDE surface was explained by the nanoparticle-mediated aggregation mechanism and the preferential adsorption of Br − on the (111) facet leaving behind dominant planar structured nuclei, which then self-assemble. Electrocatalytic tests towards the glycerol electrooxidation demonstrated that the as-synthesized freestanding surfactant-and binder-free GDE-Au material 2 (100 µgAu cm −2) delivered a high specific peak current density of jp = 33 mA cmAu −2 , which is 3 and 7 higher than the tested commercial Au/C nanocatalyst at loadings of 76 and 152 µgAu cm −2 , respectively. This study provides future directions for the synthesis and application of nanostructured catalysts for alcohol oxidation as an alternative to anodic oxygen evolution, which consumes the majority of the electricity input during the electrolysis.

show abstract

“…Usually, it was observed a low conversion combined with a high selectivity or high conversion together with low selectivity. [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39] Recently, Liu et al 40 reported the photoelectrochemical oxidation of 1,3-DHA directly from glycerol using nanoporous BiVO 4 , with high conversion and selectivity of 51%. However, side products such as glyceric acid, formic acid, glycolic acid, CO 2 , CO and H 2 O 2 and O 2 were observed.…”

Section: Expeditious Syntheses To Pharmochemicals 13-dihydroxyacetonmentioning

confidence: 99%

Expeditious Syntheses to Pharmochemicals 1,3-Dihydroxyacetone, 1,3-Dichloro-, 1,3-Dibromo- and 1,3-Diiodoacetone from Glycerol 1,3-Dichlorohydrin Using Homogenous and Heterogenous Medium

Silva

Santos

Silva

et al. 2020

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

New efficient and reproductive routes to production of 1,3-dihydroxyacetone (1), 1,3-dichloroacetone (6), 1,3-dibromoacetone (7) and 1,3-diiodoacetone (8) from glycerol 1,3-dichlorohydrin (3) were developed. The synthesis of 1 was processed in three steps from glycerol 2 (1,3-selective chlorination of 2 to 3, oxidation of 3 to 6 and subsequent di-hydroxylation) in 51% overall yield. On the other hand, 7 and 8 were produced from 3, via a trans-bromination and trans-iodination, respectively, followed by oxidation and hydroxylation steps, in 38-52% overall yield. It was used homogeneous media with different reagents (HCl/AcOH, pyridinium chlorochromate (PCC), PCC-HIO 4 ) and heterogeneous media with reagents supported on polymer resins such as Amberlyst ® A26-HCrO 4form, PV-PCC (polyvinyl-pyridinium chlorochromate) and Amberlyst ® A26-OHform or reagents supported on alumina such as KI/Al 2 O 3 , KBr/Al 2 O 3 , in solvent free conditions.

show abstract

Study on catalyst selection for electrochemical valorization of glycerol

Abstract: Navigating glycerol electrochemical oxidation roadmap and catalyst selection.

Cited by 116 publications

References 165 publications

Enhanced electrocatalytic activity and selectivity of glycerol oxidation triggered by nanoalloyed silver–gold nanocages directly grown on gas diffusion electrodes

Enhanced electrocatalytic activity and selectivity of glycerol oxidation triggered by nanoalloyed silver–gold nanocages directly grown on gas diffusion electrodes

Bromide-Regulated Anisotropic Growth of Desert-Rose-Like Nanostructured Gold onto Carbon Fiber Electrodes as Freestanding Electrocatalysts

Expeditious Syntheses to Pharmochemicals 1,3-Dihydroxyacetone, 1,3-Dichloro-, 1,3-Dibromo- and 1,3-Diiodoacetone from Glycerol 1,3-Dichlorohydrin Using Homogenous and Heterogenous Medium

Contact Info

Product

Resources

About