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Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

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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...

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A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

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Polyaniline as a material for hydrogen storage applications.

Nour F Attia¹, Kurt E Geckeler

¹Laboratory of Applied Macromolecular Chemistry, School of Materials Science and Engineering, Gwangju Institute of Science and Technology GIST, 1 Oryong-dong, Buk-gu, Gwangju 500-712, South Korea.

Macromolecular Rapid Communications

|June 8, 2013

Summary

Developing advanced hydrogen storage materials is crucial for the hydrogen economy. Electrically conducting polyaniline (PANI) and its derivatives show promise for safe, ambient-condition hydrogen adsorption and release.

Keywords:

conducting polymers hydrogen storage nanocomposites polyaniline π-electron system

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A Polyaniline-based Sensor of Nucleic Acids

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A Polyaniline-based Sensor of Nucleic Acids

A Polyaniline-based Sensor of Nucleic Acids

Published on: November 1, 2016

Area of Science:

Materials Science
Chemical Engineering
Energy Storage

Background:

Commercializing the hydrogen economy faces significant hurdles due to the absence of efficient and safe hydrogen storage solutions.
Current materials often require extreme conditions for hydrogen adsorption/desorption, limiting practical applications.
Cost-effective and high-performance materials are essential to advance hydrogen storage technology.

Purpose of the Study:

To review the advancements in using conducting polyaniline (PANI) and its related materials for hydrogen storage.
To discuss the potential of various PANI structures, nanocomposites, and porous materials in hydrogen storage applications.
To highlight the role of PANI's unique electronic properties, specifically its π-electron system, in hydrogen uptake mechanisms.

Main Methods:

Literature review of research on conducting polyaniline (PANI) based materials for hydrogen storage.
Analysis of different PANI structures, including nanocomposites and activated porous forms.
Discussion of experimental and theoretical studies on hydrogen adsorption/desorption in PANI materials.

Main Results:

Conducting polyaniline (PANI) exhibits significant potential as a hydrogen storage material due to its favorable electronic, thermal, and chemical characteristics.
Various PANI-based materials, including nanocomposites and porous structures, have demonstrated promising hydrogen storage capacities.
The π-electron system in PANI's backbone plays a crucial role in facilitating hydrogen uptake and influencing storage mechanisms.

Conclusions:

Polyaniline (PANI) and its derived materials represent a viable pathway towards developing practical hydrogen storage solutions.
Further research into optimizing PANI structures and understanding the underlying mechanisms can lead to enhanced hydrogen storage performance.
PANI-based materials offer a cost-effective and adaptable platform for advancing the hydrogen economy.