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

Amperometry: Overview01:10

Amperometry: Overview

974
Amperometry is a technique commonly used to measure the concentration of specific analytes in a solution by monitoring the electric current generated during an electrochemical reaction. It involves applying a constant potential between a working electrode and a reference electrode to measure the resulting current, which is proportional to the concentration of the analyte. The Clark oxygen electrode operates based on this principle of amperometry. It consists of a cathode and an anode enclosed...
974
Potentiometry: Types of Electrodes01:19

Potentiometry: Types of Electrodes

1.1K
Reference electrodes serve as a stable reference point for potentiometric measurements, while indicator and working electrodes react to variations in the composition of a solution.
The Standard Hydrogen Electrode (SHE) is a widely used reference electrode that maintains zero potential across all temperatures. However, its need for a continuous hydrogen gas supply renders it impractical for everyday use.
An alternative to SHE is the Saturated Calomel Electrode (SCE). This electrode features an...
1.1K
Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

996
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...
996

You might also read

Related Articles

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

Sort by
Same author

Thin Copper Foils: From Electrodeposition Conditions to Adhesion Performances.

Materials (Basel, Switzerland)·2026
Same author

Tailored Nitrogen-Doped Laser-Induced Graphene on Novel Synthesized Cross-Linked Aromatic Polyimides for Targeted Applications.

Polymers·2026
Same author

Laser-Induced Graphene on Biocompatible PDMS/PEG Composites for Limb Motion Sensing.

Sensors (Basel, Switzerland)·2025
Same author

Carbon aerogels and xerogels: next-generation materials for sustainable energy and environmental solutions.

Chemical communications (Cambridge, England)·2025
Same author

Advanced nitrogen-doped transition metal oxides decorated with Pt: synthesis and composition strategies for maximised electrochemical performance.

Dalton transactions (Cambridge, England : 2003)·2025
Same author

Early-stage analysis of PET - fullerene derivatives for electron transport in photovoltaics.

Physical chemistry chemical physics : PCCP·2025
Same journal

RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

Sensors (Basel, Switzerland)·2026
Same journal

Enhancing Unsupervised Multi-Source Domain Adaptation for Person Re-Identification via Mixture of Experts and Graph-Based Relation.

Sensors (Basel, Switzerland)·2026
Same journal

Development of an Instrumented Glove for Palmar Pressure Assessment in Kayakers.

Sensors (Basel, Switzerland)·2026
Same journal

Development and Experimental Validation of an Autonomous IoT-Based Monitoring System for Real-Time Water Quality Assessment in the Amazon River.

Sensors (Basel, Switzerland)·2026
Same journal

Semi-Supervised Adversarial Learning Framework for Controller Area Network Bus Intrusion Detection.

Sensors (Basel, Switzerland)·2026
Same journal

Smart Optimization Method for Safety Signs in Innovative Manufacturing Environments Integrating Industrial Field IoT Sensors and Knowledge Graphs.

Sensors (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: Nov 3, 2025

Hydrogen Charging of Aluminum using Friction in Water
07:50

Hydrogen Charging of Aluminum using Friction in Water

Published on: January 28, 2020

6.2K

Full-Self-Powered Humidity Sensor Based on Electrochemical Aluminum-Water Reaction.

Marko V Bošković1, Biljana Šljukić2,3, Dana Vasiljević Radović1

  • 1Department of Microelectronic Technologies, Institute of Chemistry, Technology, and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia.

Sensors (Basel, Switzerland)
|June 2, 2021
PubMed
Summary
This summary is machine-generated.

This study details a self-powered humidity sensor. Electricity generation relies on electrochemical reactions between aluminum electrodes and atmospheric moisture, enabling practical applications.

Keywords:
aluminum–air reactionbreath monitoringenergy harvestingfull-self-poweredhumidity sensinginterdigitated capacitor

More Related Videos

Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors
08:49

Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors

Published on: December 21, 2019

9.7K
Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors
07:13

Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors

Published on: November 15, 2016

10.3K

Related Experiment Videos

Last Updated: Nov 3, 2025

Hydrogen Charging of Aluminum using Friction in Water
07:50

Hydrogen Charging of Aluminum using Friction in Water

Published on: January 28, 2020

6.2K
Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors
08:49

Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors

Published on: December 21, 2019

9.7K
Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors
07:13

Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors

Published on: November 15, 2016

10.3K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Sensor Technology

Background:

  • Humidity sensors are crucial for environmental monitoring and industrial processes.
  • Self-powered sensors eliminate the need for external power sources, offering greater convenience and reduced complexity.
  • Understanding the fundamental operating principles of such sensors is key to their optimization and widespread adoption.

Purpose of the Study:

  • To present a detailed examination of the operating principle of a full-self-powered humidity sensor.
  • To describe the fabrication and activation processes of the interdigitated capacitor-based sensor.
  • To elucidate the primary mechanism responsible for electricity generation within the sensor.

Main Methods:

  • Fabrication of an interdigitated capacitor structure with aluminum thin-film digits.
  • Material characterization using X-ray Diffraction (XRD), Fourier-Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), and Atomic Force Microscopy (AFM).
  • Electrochemical Impedance Spectroscopy (EIS) and noise measurements to analyze electrical properties and generation mechanisms.

Main Results:

  • The sensor was successfully fabricated and activated.
  • Characterization confirmed the sensor's structure and material properties.
  • Analysis revealed that electrochemical reactions between aluminum electrodes and water vapor in the presence of oxygen are the dominant electricity generation process.

Conclusions:

  • The study successfully identified and explained the electrochemical mechanism driving the self-powered humidity sensor.
  • The sensor's ability to generate electricity from ambient humidity was confirmed.
  • The demonstrated response to human breath highlights the sensor's potential for practical applications in various fields.