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Related Concept Videos

Hydrogen Bonds00:26

Hydrogen Bonds

Hydrogen BondsHydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.Hydrogen Bonds Control the World!Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are...
Hydrogen Bonds01:04

Hydrogen Bonds

A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
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...
Reduction of Alkenes: Catalytic Hydrogenation02:13

Reduction of Alkenes: Catalytic Hydrogenation

Alkenes undergo reduction by the addition of molecular hydrogen to give alkanes. Because the process generally occurs in the presence of a transition-metal catalyst, the reaction is called catalytic hydrogenation.
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the surface of...
Electron Carriers01:24

Electron Carriers

Electron carriers can be thought of as electron shuttles. These compounds can easily accept electrons (i.e., be reduced) or lose them (i.e., be oxidized). They play an essential role in energy production because cellular respiration is contingent on the flow of electrons.
Over the many stages of cellular respiration, glucose breaks down into carbon dioxide and water. Electron carriers pick up electrons lost by glucose in these reactions, temporarily storing and releasing them into the electron...
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...

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Updated: Jun 12, 2026

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

Hydrogen: the future energy carrier.

Andreas Züttel1, Arndt Remhof, Andreas Borgschulte

  • 1Empa Materials Sciences and Technology, Department of Environment, Energy and Mobility, Division of Hydrogen & Energy, , CH-8600 Dübendorf, Switzerland. andreas.zuettel@empa@ch

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|June 23, 2010
PubMed
Summary
This summary is machine-generated.

Transitioning from fossil fuels to renewable energy is crucial due to environmental and economic concerns. Synthetic hydrocarbons offer a CO2-neutral energy storage solution, compatible with existing infrastructure.

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Membraneless Hydrogen Peroxide Fuel Cells as a Promising Clean Energy Source
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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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Hydrogen Production and Utilization in a Membrane Reactor
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Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

Area of Science:

  • Energy Science
  • Environmental Science
  • Materials Science

Background:

  • The 21st century highlights the unsustainability of fossil fuels, citing energy demand, oil depletion, CO2 emissions, and economic dependence.
  • A significant shift towards renewable energy sources is imperative for a sustainable future.
  • Efficient conversion and storage of renewable energy present major challenges.

Purpose of the Study:

  • To explore challenges and alternatives in renewable energy storage.
  • To evaluate synthetic hydrocarbons as a CO2-neutral energy carrier.
  • To assess the viability of using existing infrastructure for synthetic hydrocarbon utilization.

Main Methods:

  • Review of current energy storage limitations and renewable energy conversion technologies.
  • Analysis of hydrogen production via electrolysis and its storage challenges.
  • Investigation of synthetic hydrocarbon production from hydrogen and atmospheric CO2.

Main Results:

  • Direct hydrogen storage faces material and system energy density limitations.
  • Synthetic hydrocarbons offer a CO2-neutral alternative, comparable in storage to fossil fuels.
  • These synthetic fuels are compatible with conventional combustion engines and turbines.

Conclusions:

  • Synthetic hydrocarbons present a promising CO2-neutral energy storage solution.
  • Their compatibility with existing infrastructure facilitates a smoother transition from fossil fuels.
  • Further research into efficient production and storage systems is warranted.