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

You might also read

Related Articles

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

Sort by
Same author

Model investigation of a consecutive dye uptake and release process by using a bilayered chitosan-mesoporous silica nanocoating system.

International journal of biological macromolecules·2026
Same author

Titania-Supported Photocatalytic Coatings of Cu<sub>2</sub>O Nanoparticles Synthesized via Heterogeneous Nucleation.

ACS omega·2026
Same author

Reimagining o-Carborane-Based Fluorophores: Charge-Transfer from Boron Substituents Triggers Aggregation- and Crystallization-Induced Emission.

Angewandte Chemie (International ed. in English)·2026
Same author

Mechanistic and DFT Insights Into Co-Catalytic MgFe-LDH/Hematite Interfaces for Efficient Photoelectrochemical Water Oxidation.

Chemistry (Weinheim an der Bergstrasse, Germany)·2025
Same author

Photoassisted Chemical Transformation of Cu<sub>2</sub>O Nanooctahedra into Cu<sub>2</sub>S Quantum-Dot Superstructures: Structural and Photoelectrochemical Properties.

ACS materials Au·2025
Same author

Nano Aerogel-Based VIS-NIR Switchable Electrochromic Supercapacitor: Energy Storage and Heat-Shielding Device.

ACS applied materials & interfaces·2025

Related Experiment Video

Updated: Nov 12, 2025

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
09:18

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

11.7K

Cryoaerogels and Cryohydrogels as Efficient Electrocatalysts.

Dennis Müller1,2, Dániel Zámbó1,2, Dirk Dorfs1,2,3

  • 1Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstraße 3A, 30167, Hannover, Germany.

Small (Weinheim an Der Bergstrasse, Germany)
|March 22, 2021
PubMed
Summary
This summary is machine-generated.

Additive-free cryoaerogel coatings using noble metal nanoparticles show enhanced catalytic properties for ethanol oxidation. Superstructured materials created via cryoaerogelation exhibit superior performance compared to densely packed nanoparticles.

Keywords:
aerogel coatingscryoaerogelscryohydrogelselectrocatalysisethanol oxidation

More Related Videos

A Rapid Synthesis Method for Au, Pd, and Pt Aerogels Via Direct Solution-Based Reduction
10:37

A Rapid Synthesis Method for Au, Pd, and Pt Aerogels Via Direct Solution-Based Reduction

Published on: June 18, 2018

8.9K
Fabrication and Testing of Catalytic Aerogels Prepared Via Rapid Supercritical Extraction
09:28

Fabrication and Testing of Catalytic Aerogels Prepared Via Rapid Supercritical Extraction

Published on: August 31, 2018

7.5K

Related Experiment Videos

Last Updated: Nov 12, 2025

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
09:18

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

11.7K
A Rapid Synthesis Method for Au, Pd, and Pt Aerogels Via Direct Solution-Based Reduction
10:37

A Rapid Synthesis Method for Au, Pd, and Pt Aerogels Via Direct Solution-Based Reduction

Published on: June 18, 2018

8.9K
Fabrication and Testing of Catalytic Aerogels Prepared Via Rapid Supercritical Extraction
09:28

Fabrication and Testing of Catalytic Aerogels Prepared Via Rapid Supercritical Extraction

Published on: August 31, 2018

7.5K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Noble metal nanoparticles are crucial for catalysis.
  • Traditional methods for immobilizing nanoparticles often lead to aggregation and reduced efficiency.
  • Developing novel nanostructured materials with enhanced properties is essential.

Purpose of the Study:

  • To prepare additive-free cryoaerogel coatings from noble metal nanoparticles.
  • To investigate the electrochemical and catalytic properties of these novel materials.
  • To explore cryohydrogels as a new class of materials derived from cryoaerogels.

Main Methods:

  • Cryoaerogelation using liquid nitrogen or isopentane as cooling media.
  • Scanning Electron Microscopy (SEM) for morphological investigation.
  • Cyclic voltammetry to determine electrochemically active surface areas (ECSAs).
  • Ethanol Oxidation Reaction (EOR) studies to assess catalytic activity.

Main Results:

  • Superstructured cryoaerogels demonstrated superior morphological and catalytic properties compared to densely packed nanoparticles.
  • Cryoaerogels prepared with isopentane exhibited the highest ECSA and best catalytic performance for EOR.
  • Cryohydrogels, a new class of materials, showed comparable structures and catalytic activity to their cryoaerogel counterparts.

Conclusions:

  • Additive-free cryoaerogel coatings offer a promising route to enhance nanoparticle performance.
  • Cryoaerogelation provides a novel platform for creating superstructured nanomaterials with improved catalytic efficiency.
  • The developed cryoaerogel and cryohydrogel materials are suitable for wet-chemical applications, including electrocatalysis.