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

Weak Acid Solutions04:02

Weak Acid Solutions

Few compounds act as strong acids. A far greater number of compounds behave as weak acids and only partially react with water, leaving a large majority of dissolved molecules in their original form and generating a relatively small amount of hydronium ions. Weak acids are commonly encountered in nature, being the substances partly responsible for the tangy taste of citrus fruits, the stinging sensation of insect bites, and the unpleasant smells associated with body odor. A familiar example of a...
Ions as Acids and Bases02:54

Ions as Acids and Bases

Salts with Acidic Ions
Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt’s constituent ions. For example, dissolving the ammonium chloride in water results in its dissociation, as described by the equation:
Lewis Acids and Bases02:33

Lewis Acids and Bases

In 1923, G. N. Lewis proposed a generalized definition of acid-base behavior in which acids and bases are identified by their ability to accept or to donate a pair of electrons and form a coordinate covalent bond.
A coordinate covalent bond (or dative bond) occurs when one of the atoms in the bond provides both bonding electrons. For example, a coordinate covalent bond occurs when a water molecule combines with a hydrogen ion to form a hydronium ion. A coordinate covalent bond also results when...
Batteries and Fuel Cells03:12

Batteries and Fuel Cells

A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
Brønsted-Lowry Acids and Bases02:16

Brønsted-Lowry Acids and Bases

In 1923, the Brønsted–Lowry definition of acids and bases was proposed by Johannes Brønsted and Thomas Lowry. According to this theory, a Brønsted acid is defined as a species that donates a proton in a chemical reaction and gets converted to its conjugate base. A Brønsted base is defined as a species that accepts a proton in a chemical reaction and gets converted into its conjugate acid. These transfers of protons are caused by the displacement of electrons in these reactions, which is...
Microbial Fuel Cells01:23

Microbial Fuel Cells

Microbial fuel cells (MFCs) are bioelectrochemical devices that generate electricity by exploiting the metabolic processes of electrogenic bacteria. These systems provide a renewable energy source and serve as an innovative method for treating organic waste, such as wastewater.A typical MFC consists of two chambers: an anoxic (oxygen-free) compartment that houses the bacteria and an oxic (oxygen-rich) compartment that contains oxygen as the terminal electron acceptor. Many MFCs use proton...

You might also read

Related Articles

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

Sort by
Same author

Nanoparticle collection efficiency of capillary pore membrane filters.

Journal of aerosol science·2023
Same author

X-ray diffraction study of K3NdSi7O17: a new framework silicate with a linear Si-O-Si bond.

Acta crystallographica. Section B, Structural science·2000
Same author

Effect of intramuscular intraoperative pain medication on narcotic usage after laparoscopic cholecystectomy.

The American surgeon·1996
Same author

Clinical experience with three-in-one admixtures administered peripherally.

Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition·1990
Same author

A new approach to the management of obstructed enteral feeding tubes.

Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition·1989
Same journal

Daily briefing: 'Cyborg' cockroaches breathe underwater with printed suit.

Nature·2026
Same journal

China boosts prestigious grants for young scientists - will it ease competition?

Nature·2026
Same journal

Incoming US science academy chief vows to 'double down' on research.

Nature·2026
Same journal

Author Correction: Synthesis of enantioenriched atropisomers by biocatalytic deracemization.

Nature·2026
Same journal

Electrodeposited self-assembled molecules for perovskite photovoltaics.

Nature·2026
Same journal

Neutrino's nursery found: the 'Shadow Blaster'.

Nature·2026
See all related articles

Related Experiment Video

Updated: Jun 24, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
05:33

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

Solid acids as fuel cell electrolytes.

S M Haile1, D A Boysen, C R Chisholm

  • 1Materials Science, California Institute of Technology, Pasadena 91125, USA. smhaile@caltech.edu

Nature
|April 20, 2001
PubMed
Summary
This summary is machine-generated.

Solid acid electrolytes, like cesium hydrogen sulfate, show promise for high-temperature fuel cells, overcoming limitations of current polymer membranes. These materials offer anhydrous proton transport and stable performance in humid conditions.

More Related Videos

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery
09:49

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery

Published on: February 13, 2017

Membraneless Hydrogen Peroxide Fuel Cells as a Promising Clean Energy Source
06:39

Membraneless Hydrogen Peroxide Fuel Cells as a Promising Clean Energy Source

Published on: October 20, 2023

Related Experiment Videos

Last Updated: Jun 24, 2026

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
05:33

Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications

Published on: August 12, 2013

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery
09:49

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery

Published on: February 13, 2017

Membraneless Hydrogen Peroxide Fuel Cells as a Promising Clean Energy Source
06:39

Membraneless Hydrogen Peroxide Fuel Cells as a Promising Clean Energy Source

Published on: October 20, 2023

Area of Science:

  • Electrochemistry
  • Materials Science
  • Energy Conversion

Background:

  • Polymer electrolyte membrane fuel cells (PEMFCs) are limited by humid operating conditions and low-temperature operation (<100°C).
  • PEMFCs suffer from methanol and hydrogen permeability, reducing fuel efficiency.
  • Solid acids offer anhydrous proton transport and high-temperature stability (up to 250°C).

Purpose of the Study:

  • To investigate the viability of solid acids as fuel cell electrolytes operating at elevated temperatures.
  • To address the limitations of water solubility and ductility of solid acids at higher temperatures.
  • To evaluate the electrochemical performance and stability of a cesium hydrogen sulfate (CsHSO4) electrolyte membrane.

Main Methods:

  • Fabrication of a CsHSO4 electrolyte membrane (approx. 1.5 mm thick).
  • Testing of a H2/O2 fuel cell utilizing the CsHSO4 membrane at 150-160°C.
  • Assessment of the electrolyte's properties after exposure to humid atmospheres.

Main Results:

  • The CsHSO4 fuel cell demonstrated promising electrochemical performance: open circuit voltage of 1.11 V and current density of 44 mA cm-2.
  • Solid acid properties remained unaffected by exposure to humid atmospheres.
  • The cell operated effectively at temperatures significantly above the limitations of traditional PEMFCs.

Conclusions:

  • CsHSO4 solid acid electrolytes show potential for high-temperature fuel cell applications.
  • Further research is needed to develop fabrication techniques for thinner electrolytes and assess long-term stability, including sulfur reduction.
  • Solid acids present a viable alternative to overcome current limitations in fuel cell technology.