Related Experiment Video
Updated: May 29, 2025
11:28
Biomass Conversion to Produce Hydrocarbon Liquid Fuel Via Hot-vapor Filtered Fast Pyrolysis and Catalytic Hydrotreating
Published on: December 25, 2016
26.4K
On-Demand Catalytic Platform for Glycerol Upgrade and Utilization
Jianguo Zhao1,2, Shuai Hao1,2, Panpan Zhao1,2
1State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
Journal of the American Chemical Society
|February 4, 2025
Summary
Researchers developed a novel catalytic platform to convert glycerol, a biodiesel byproduct, into glyceric acid biofuel. This system efficiently recycles glycerol, enhancing renewable energy sustainability.
Area of Science:
- Sustainable Chemistry
- Renewable Energy Technologies
- Catalysis
Background:
- Glycerol surplus from biodiesel production poses a challenge to renewable energy policies.
- Efficient valorization of byproducts is crucial for sustainable energy systems.
Purpose of the Study:
- To establish an on-demand catalytic platform for glycerol upgrade and utilization.
- To identify optimal biofuel candidates from glycerol through catalytic oxidation.
- To develop a hybrid system for diurnal glycerol-to-biofuel conversion.
Main Methods:
- Photoelectro-bioelectro-heterogeneous coupling catalysis.
- Theoretical descriptors (HOMO, dual local softness) and experimental validation.
- Utilizing BiVO4 photoelectrodes for glycerol oxidation.
Main Results:
- Glyceric acid identified as the optimal biofuel via monohydroxyl oxidation of glycerol.
- A hybrid biophotoelectrochemical system achieved an open-circuit voltage of 0.89 V.
- Stable diurnal operation over 10 days with a maximum power density of 0.41 mW cm⁻².
Conclusions:
- The developed platform offers a strategic integration of multiple energy sources.
- Coupling catalysis provides a new pathway for sustainable energy systems.
- Efficient glycerol valorization contributes to the credibility of renewable energy policies.
Related Concept Videos
02:13Reduction of Alkenes: Catalytic Hydrogenation
11.8K
Alkenes undergo reduction by the addition of molecular hydrogen to give alkanes. Because the process generally occurs in the presence of a transition-metal catalyst, the reaction is called catalytic hydrogenation.
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
11.8K
01:57Preparation of Diols and Pinacol Rearrangement
3.3K
Compounds bearing two hydroxyl groups are known as diols. When the hydroxyl groups are located on adjacent carbon atoms, the diols are called vicinal diols or glycols. Under acidic conditions, vicinal diols undergo a specific reaction called pinacol rearrangement.
The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.
The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.
3.3K
02:17Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
3.2K
Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
3.2K
02:15Preparation of Alcohols via Addition Reactions
6.1K
Overview
The acid-catalyzed addition of water to the double bond of alkenes is a large-scale industrial method used to synthesize low-molecular-weight alcohols. An acidic atmosphere is required to allow the hydrogen in the water molecule to act as an electrophile and attack the double bond in an alkene. The addition of a proton to the double bond creates a carbocation intermediate. The proton preferentially bonds to the less substituted end of the double bond to create a more stable carbocation...
The acid-catalyzed addition of water to the double bond of alkenes is a large-scale industrial method used to synthesize low-molecular-weight alcohols. An acidic atmosphere is required to allow the hydrogen in the water molecule to act as an electrophile and attack the double bond in an alkene. The addition of a proton to the double bond creates a carbocation intermediate. The proton preferentially bonds to the less substituted end of the double bond to create a more stable carbocation...
6.1K
02:35Acid-Catalyzed Dehydration of Alcohols to Alkenes
19.1K
In a dehydration reaction, a hydroxyl group in an alcohol is eliminated along with the hydrogen from an adjacent carbon. Here, the products are an alkene and a molecule of water. Dehydration of alcohols is generally achieved by heating in the presence of an acid catalyst. While the dehydration of primary alcohols requires high temperatures and acid concentrations, secondary and tertiary alcohols can lose a water molecule under relatively mild conditions.
19.1K
01:28Reduction of Benzene to Cyclohexane: Catalytic Hydrogenation
4.3K
Unlike the easy catalytic hydrogenation of an alkene double bond, hydrogenation of a benzene double bond under similar reaction conditions does not take place easily. For example, in the reduction of stilbene, the benzene ring remains unaffected while the alkene bond gets reduced. Hydrogenation of an alkene double bond is exothermic and a favorable process. In contrast, to hydrogenate the first unsaturated bond of benzene, an energy input is needed; that is, the process is endothermic. This is...
4.3K