Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Reduction of Alkenes: Catalytic Hydrogenation02:13

Reduction of Alkenes: Catalytic Hydrogenation

11.9K
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...
11.9K
Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation02:24

Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation

7.6K
Introduction
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
7.6K
Catalysis02:50

Catalysis

26.7K
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
26.7K
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation02:17

Reduction 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...
3.2K
Reduction of Benzene to Cyclohexane: Catalytic Hydrogenation01:28

Reduction 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
Radical Substitution: Hydrogenolysis of Alkyl Halides with Tributyltin Hydride01:26

Radical Substitution: Hydrogenolysis of Alkyl Halides with Tributyltin Hydride

1.8K
Radical substitution reactions can be used to remove functional groups from molecules. The hydrogenolysis of alkyl halides is one such reaction, where the weak Sn–H bond in tributyltin hydride reacts with alkyl halides to form alkanes. Here, the reagent Bu3SnH yields tributyltin halide as a byproduct.
The bonds formed in this reaction are stronger than the bonds broken, making it energetically favorable. The reaction follows a radical chain mechanism similar to radical halogenation...
1.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Mediating Role of Dyadic Coping Between Social Support and Oral Frailty Cross-Sectional Study of Elderly Ovarian Cancer Patients in China.

International journal of women's health·2026
Same author

Cumulative metabolic score for insulin resistance and heart failure risk: A prospective study.

Nutrition, metabolism, and cardiovascular diseases : NMCD·2026
Same author

Increased Glycogenin-Exposed Residual Glycogen in Lysosomes Is the Early Pathological Finding in Asymptomatic Pompe Disease.

Muscle & nerve·2026
Same author

Microneedle-Based Codelivery of <i>Platycladus orientalis</i>-Derived Extracellular Vesicles and Minoxidil Nanoparticles for Androgenetic Alopecia Treatment.

ACS applied materials & interfaces·2026
Same author

Microwave pulsed vacuum drying (MPVD) revolutionizes wolfberry processing: synergistic effects on drying efficiency, microstructure, nutrient preservation and metabolomics.

Food chemistry·2026
Same author

Integrated multi-omics analysis uncovers key metabolic and transcriptional regulatory networks in <i>Blumea balsamifera</i> responding to salt stress.

Frontiers in plant science·2026

Related Experiment Video

Updated: Jun 9, 2025

Laboratory Production of Biofuels and Biochemicals from a Rapeseed Oil through Catalytic Cracking Conversion
11:33

Laboratory Production of Biofuels and Biochemicals from a Rapeseed Oil through Catalytic Cracking Conversion

Published on: September 2, 2016

13.8K

Efficient Toluene Decontamination and Resource Utilization through Ni/Al2O3 Catalytic Cracking.

Yifei Niu1, Xiaolong Ma2, Guangyi Lu1

  • 1Hebei Key Laboratory of Inorganic Nano-Materials, College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang 050024, China.

Molecules (Basel, Switzerland)
|October 26, 2024
PubMed
Summary

This study presents a Ni/Al2O3 catalyst for efficiently removing toluene, a volatile organic compound (VOC). The process converts toluene into valuable carbon materials and COx-free hydrogen, aiding environmental remediation and resource recovery.

Keywords:
COx-free hydrogenNi/Al2O3 catalystVOCscarbon nanofiberstoluene pyrolysis

More Related Videos

Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area
08:13

Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area

Published on: February 19, 2018

11.8K
Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes
12:08

Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes

Published on: June 24, 2022

3.5K

Related Experiment Videos

Last Updated: Jun 9, 2025

Laboratory Production of Biofuels and Biochemicals from a Rapeseed Oil through Catalytic Cracking Conversion
11:33

Laboratory Production of Biofuels and Biochemicals from a Rapeseed Oil through Catalytic Cracking Conversion

Published on: September 2, 2016

13.8K
Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area
08:13

Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area

Published on: February 19, 2018

11.8K
Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes
12:08

Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes

Published on: June 24, 2022

3.5K

Area of Science:

  • Environmental Chemistry
  • Catalysis
  • Materials Science

Background:

  • Volatile organic compounds (VOCs), especially aromatic hydrocarbons like toluene, present significant environmental hazards due to toxicity and contribution to secondary pollutant formation.
  • Effective remediation strategies are crucial for mitigating environmental risks associated with VOCs.
  • Resource recovery from pollutant degradation aligns with circular economy principles.

Purpose of the Study:

  • To investigate the catalytic pyrolysis of toluene for efficient removal and resource recovery.
  • To develop and characterize a Ni/Al2O3 catalyst for VOC remediation.
  • To optimize conditions for toluene decomposition and valuable product generation.

Main Methods:

  • Synthesis of Ni/Al2O3 catalyst via impregnation.
  • Characterization of catalyst and products using SEM, XRD, and N2 adsorption-desorption.
  • Catalytic pyrolysis experiments to determine toluene removal efficiency, carbon material yield, and hydrogen production.
  • Optimization of reaction temperature.

Main Results:

  • The Ni/Al2O3 catalyst effectively decomposed toluene at 700 °C.
  • Under optimal conditions, 1328 mg/g toluene was removed, yielding 915 mg/g of carbon material and 1234 mL/g of COx-free hydrogen.
  • The recovered carbon material consists of mesoporous graphite nanofibers with high surface area, suitable for adsorption, catalysis, and energy storage.

Conclusions:

  • Catalytic pyrolysis using Ni/Al2O3 offers a promising method for toluene remediation and resource recovery.
  • The process converts a harmful VOC into valuable solid carbon and hydrogen.
  • This approach supports green chemistry and circular economy objectives by transforming pollutants into usable materials.