Anaerobic Alcohol Conversion to Carbonyl Compounds Over Nanoscaled Rh-doped SrTiO3 Under Visible Light.

08:00 EDT 11th April 2019 | BioPortfolio

Summary of "Anaerobic Alcohol Conversion to Carbonyl Compounds Over Nanoscaled Rh-doped SrTiO3 Under Visible Light."

Photocatalytic oxidation of organic compounds on semiconductors provides a mild approach for organic synthesis and solar energy utilization. Herein, we identify the key points for the photocatalytic oxidation over Pt-loaded Rh-doped strontium titanate allowing converting alcohols efficiently and selectively to aldehydes and ketones under anaerobic conditions and visible light with an apparent quantum efficiency of pure benzyl alcohol oxidation at 420 nm up to 49.5%. Mechanistic investigations suggest that thermodynamically the controlled valence band edge position via Rh doping provides a suitable oxidation ability of photo-generated holes, avoiding the powerful hydroxyl radical intermediates prone to over-oxidation resulting in high selectivity. Kinetically, oxygen vacancies induced by Rh3+ substitution in the SrTiO3 lattice not only favor the dissociative adsorption of alcohols yielding alkoxy species, but also induce the weakening of the α-C-H bond facilitating its cleavage by the photo-generated holes. Pt nanoparticles deposited as cocatalyst contribute to the final hydrogen evolution.


Journal Details

This article was published in the following journal.

Name: The journal of physical chemistry letters
ISSN: 1948-7185


DeepDyve research library

PubMed Articles [5694 Associated PubMed Articles listed on BioPortfolio]

The Alcohol-to-Jet Conversion Pathway for Drop-In Biofuels: Techno-Economic Evaluation.

Alcohol-to-jet (ATJ) is a process for the conversion of alcohols to an alternative jet fuel blendstock based on catalytic steps historically utilized by the petroleum refining and petrochemical indust...

Potential enhancement of direct interspecies electron transfer for anaerobic degradation of coal gasification wastewater using up-flow anaerobic sludge blanket (UASB) with nitrogen doped sewage sludge carbon assisted.

Waste sewage sludge was converted into the novel conductive material of nitrogen doped sewage sludge carbon (N-SC) to enhance anaerobic degradation of coal gasification wastewater (CGW). The results i...

Enantioselective synthesis of enantiopure chiral alcohols using carbonyl reductases screened from Yarrowia lipolytica.

We aimed to explore Yarrowia lipolytica carbonyl reductases as effective biocatalysts and to develop efficient asymmetric reduction systems for chiral alcohol synthesis.

Rational Synthesis of Porous Graphitic-like Carbon Nitride Nanotubes Co-doped with Au and Pd as Efficient Catalyst for Carbon Monoxide Oxidation.

The precise fabrication of efficient catalysts for CO oxidation is of particular interest in a wide range of industrial and environmental applications. Herein, a scalable up method is presented for th...

Enhanced enzymatic hydrolysis and methane production from rubber wood waste using steam explosion.

Rubber wood waste (RW) requires due to its recalcitrance a pretreatment step before efficient biochemical conversion is possible. Non chemical steam explosion pretreatment was adopted to enhance enzym...

Clinical Trials [1682 Associated Clinical Trials listed on BioPortfolio]

Gingival Crevicular Fluid Levels of Protein Carbonyl Following the Use of Lycopene in Chronic Periodontitis

Effect of Locally Delivered Antioxidants as An Adjunct to Non-surgical Periodontal Therapy on GCF Level of Oxidative Stress Marker; Protein Carbonyl

E-alcohol Therapy - an Evaluation of Alcohol Therapy Delivered Via Video Conference

The study evaluates whether the introduction of e-alcohol therapy (alcohol therapy delivered via video conference) can break with some of the barriers related to alcohol treatment and ther...

Relations Between Residual Renal Function and Oxidative and Carbonyl Stress in Peritoneal Dialysis Patients

Residual renal function is reported to contribute to the survival and cardiovascular disease of peritoneal dialysis patients. Oxidative and carbonyl stress are increased in peritoneal dial...

Demonstration of Carbonyl Stress on Hair Follicles

In this study, the investigator will try to highlight the presence of carbonyl compounds in the hair follicles of women with telogen effluvium (ET) linked to stress of various origins (fat...

Cytokine Levels in Conversion Disorder

The aim of this study is whether the proinflammatory cytokine levels in patients with conversion disorder is increased or not changed in the acute phase and subacute - chronic periode, com...

Medical and Biotech [MESH] Definitions

Complex of iron atoms chelated with carbonyl ions.

An enzyme that catalyzes the conversion of methylmalonyl-CoA to succinyl-CoA by transfer of the carbonyl group. It requires a cobamide coenzyme. A block in this enzymatic conversion leads to the metabolic disease, methylmalonic aciduria. EC

A five-carbon sugar alcohol derived from XYLOSE by reduction of the carbonyl group. It is as sweet as sucrose and used as a noncariogenic sweetener.

Organic compounds containing a carbonyl group =C=O bonded to two hydrocarbon groups.

An enzyme that catalyzes the conversion of an orthophosphoric monoester and water to an alcohol and orthophosphate. EC

Quick Search


DeepDyve research library

Searches Linking to this Article