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Related Concept Videos

Acid-Catalyzed Hydration of Alkenes02:45

Acid-Catalyzed Hydration of Alkenes

15.2K
Alkenes react with water in the presence of an acid to form an alcohol. In the absence of acid, hydration of alkenes does not occur at a significant rate, and the acid is not consumed in the reaction. Therefore, alkene hydration is an acid-catalyzed reaction.
15.2K
Physical Properties of Alkanes02:33

Physical Properties of Alkanes

12.5K
Alkanes are nonpolar molecules due to the presence of only carbon and hydrogen atoms. The electronegativity difference between carbon and hydrogen is minimal, and hence alkanes have a zero dipole moment. This leads to the presence of only dispersion forces between the molecules. The strength of dispersion forces is dependent on the surface area of the molecules on which they act. Since the surface area increases with the molecular length for straight-chain alkanes, the dispersion forces also...
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Alkynes to Aldehydes and Ketones: Acid-Catalyzed Hydration02:40

Alkynes to Aldehydes and Ketones: Acid-Catalyzed Hydration

9.2K
Introduction
Analogous to alkenes, alkynes also undergo acid-catalyzed hydration. While the addition of water to an alkene gives an alcohol, hydration of alkynes produces different products such as aldehydes and ketones.       
9.2K
Regioselectivity and Stereochemistry of Acid-Catalyzed Hydration02:34

Regioselectivity and Stereochemistry of Acid-Catalyzed Hydration

8.7K
The rate of acid-catalyzed hydration of alkenes depends on the alkene's structure, as the presence of alkyl substituents at the double bond can significantly influence the rate.
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Alkynes to Aldehydes and Ketones: Hydroboration-Oxidation02:47

Alkynes to Aldehydes and Ketones: Hydroboration-Oxidation

19.0K
Introduction
One of the convenient methods for the preparation of aldehydes and ketones is via hydration of alkynes. Hydroboration-oxidation of alkynes is an indirect hydration reaction in which an alkyne is treated with borane followed by oxidation with alkaline peroxide to form an enol that rapidly converts into an aldehyde or a ketone. Terminal alkynes form aldehydes, whereas internal alkynes give ketones as the final product.
19.0K

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Related Experiment Video

Updated: Sep 24, 2025

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
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Enhanced thermal conductance at the graphene-water interface based on functionalized alkane chains.

Shuyu Chen1,2, Ming Yang1, Bin Liu1

  • 1Institute of Engineering Thermophysics, Chinese Academy of Sciences Beijing 100190 China zhanghang@iet.cn.

RSC Advances
|May 6, 2022
PubMed
Summary

Researchers enhanced heat transfer between graphene and water by grafting functional groups onto graphene, improving thermal transport by four times. This breakthrough offers practical solutions for thermal management and energy applications.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Thermal Engineering

Background:

  • Efficient thermal transport across graphene-water interfaces is vital for applications like heat dissipation, solar steam generation, and desalination.
  • Current methods for enhancing graphene-water thermal transport are limited, hindering practical applications.

Purpose of the Study:

  • To develop a practical and universal method for improving thermal transport at multilayer graphene-water interfaces.
  • To investigate the mechanism behind enhanced heat transport at the molecular level.

Main Methods:

  • Grafting functionalized groups onto multilayer graphene surfaces.
  • Measuring interfacial thermal conductance using advanced techniques.
  • Conducting molecular-level simulations to understand heat transfer mechanisms.

Main Results:

  • Achieved an enhancement factor of approximately 4 in thermal transport properties.
  • Reported the highest interfacial thermal conductance of 121.0 ± 11.4 MW m⁻² K⁻¹.
  • Demonstrated compatibility with industrial manufacturing processes.

Conclusions:

  • Functionalizing graphene surfaces is an effective strategy to significantly enhance thermal transport across graphene-water interfaces.
  • The developed method offers a scalable solution for improving thermal management in various applications.
  • This research provides fundamental insights into interfacial heat transfer at the nanoscale, paving the way for novel material designs.