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

The Z-Scheme of Electron Transport in Photosynthesis01:34

The Z-Scheme of Electron Transport in Photosynthesis

The light reactions of photosynthesis assume a linear flow of electrons from water to NADP+. During this process, light energy drives the splitting of water molecules to produce oxygen. However, oxidation of water molecules is a thermodynamically unfavorable reaction and requires a strong oxidizing agent. This is accomplished by the first product of light reactions: oxidized P680 (or P680+), the most powerful oxidizing agent known in biology. The oxidized P680 that acquires an electron from the...
Photoluminescence: Applications01:14

Photoluminescence: Applications

Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
Photochemical Electrocyclic Reactions: Stereochemistry01:26

Photochemical Electrocyclic Reactions: Stereochemistry

The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
Photosystem II01:22

Photosystem II

The multi-protein complex photosystem II (PS II) harvests photons and transfers their energy through its bound pigments to its reaction center, and ultimately to photosystem I (PSI) through the electron transport chain. The pigments responsible for caputirng the light energy in photosystems include chlorophyll a, chlorophyll b, and carotenoids.
The pigment molecules are arranged across  two photosystem domains — the antenna complex and the reaction center. The main aim of the pigment molecules...
Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

UV–Vis Spectroscopy: Molecular Electronic Transitions

In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this process,...

You might also read

Related Articles

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

Sort by
Same author

Interfacial Proton Regulation in an S-Scheme Pt-CQD/K<sub>3</sub>PW<sub>12</sub>O<sub>40</sub> Heterojunction Boosts Selective H<sub>2</sub>O<sub>2</sub> Synthesis during Overall Water Splitting.

ACS applied materials & interfaces·2026
Same author

High-Throughput In Situ Total Internal Reflection Imaging for Visualizing, Qualitatively Screening, and Quantitatively Evaluating Hydrogen Evolution Catalysts.

Analytical chemistry·2026
Same author

Distinct Sorption and Rejection Behavior of Hydrophobic Endocrine-Disrupting Compounds by Chlorinated Polyamide Nanofiltration Membranes: Mechanisms and Implications.

Environmental science & technology·2026
Same author

Antibiotics or Heavy Metals in Livestock Wastewater: Which One Is the Main Driver for the Development and Spread of Antibiotic Resistance under Coexposure?

Environmental science & technology·2026
Same author

High Throughput Detection of Onset Potentials of HER Electrodes by an Optical Polarization Imaging Method.

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

Study on the Correlation between i<sub>pa</sub> and i<sub>pc</sub> of Electrode in Vanadium Flow Batteries by In-Situ Weak Measurement Imaging.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same journal

Bioinspired Artificial Bioenergetic Organelles: Design Principles, Nanofabrication and Therapeutic Translation.

Advanced materials (Deerfield Beach, Fla.)·2026
Same journal

Advanced Electrolyte Materials Design for High-Energy Lithium Metal Batteries Beyond 500 Wh Kg<sup>-1</sup>.

Advanced materials (Deerfield Beach, Fla.)·2026
Same journal

Hydrophilic-Stable Nucleoside-Based Hydrogen-Bonded Organic Frameworks (N-HOF) for Therapeutic Bacterial Hybrid Systems.

Advanced materials (Deerfield Beach, Fla.)·2026
Same journal

Lanthanide-Bridged Dual-Atom Catalysts for Efficient Chlorine Electrosynthesis.

Advanced materials (Deerfield Beach, Fla.)·2026
Same journal

Composite Liquid Marble Templated Millimetric Capsule With Tunable Rigidity, Porosity, and Thermal Reconfigurability Toward 3D Cell Culture.

Advanced materials (Deerfield Beach, Fla.)·2026
Same journal

Bias-Triggered Conductivity Relaxation (BCR): A Unique Tool to Simultaneously Investigate Thermodynamics, Kinetics, and Electrostatic Effects of Oxygen Reactions in MIEC Thin Films.

Advanced materials (Deerfield Beach, Fla.)·2026
See all related articles

Related Experiment Video

Updated: Jul 1, 2026

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
10:21

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

Illuminating the Interface: In Situ Optical Insights Into Two-Electron ORR Pathways for H2O2 Electrosynthesis.

Hao Lin1, Jiawang He2, Xinwei Xie1

  • 1Shenzhen Engineering Research Laboratory For Sludge and Food Waste Treatment and Resource Recovery, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, P. R. China.

Advanced Materials (Deerfield Beach, Fla.)
|June 30, 2026
PubMed
Summary
This summary is machine-generated.

This review details in situ optical characterization methods for hydrogen peroxide (H2O2) electrosynthesis. These techniques are vital for understanding interfacial mechanisms and advancing green H2O2 production for sustainable industry.

Keywords:
2e− ORRH2O2electrochemistryelectrosynthesisin situ optical characterization techniques

More Related Videos

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
11:26

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light

Published on: September 12, 2014

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
06:08

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

Related Experiment Videos

Last Updated: Jul 1, 2026

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
10:21

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
11:26

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light

Published on: September 12, 2014

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
06:08

Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera

Published on: December 27, 2018

Area of Science:

  • Electrochemistry
  • Materials Science
  • Spectroscopy

Background:

  • Hydrogen peroxide (H2O2) is a green oxidant with growing importance.
  • Electrosynthesis of H2O2 via the two-electron oxygen reduction reaction (2e- ORR) offers a sustainable alternative to the anthraquinone process.
  • Understanding interfacial active sites is critical for efficient H2O2 electrosynthesis.

Purpose of the Study:

  • To systematically review in situ optical characterization methods for H2O2 electrosynthesis via 2e- ORR.
  • To elucidate interfacial mechanisms and reaction principles for scalable H2O2 production.
  • To highlight advancements in spatial resolution and reaction information accessible through optical techniques.

Main Methods:

  • Review of one-dimensional (1D) spectroscopy.
  • Review of two-dimensional (2D) imaging.
  • Review of three-dimensional (3D) reaction-field imaging and multimodal coupling.

Main Results:

  • In situ optical methods provide crucial insights into interfacial processes during H2O2 electrosynthesis.
  • Progressive enhancement in spatial resolution and accessible reaction information is demonstrated.
  • Correlation of optical, electrochemical, and structural data aids mechanistic understanding.

Conclusions:

  • In situ optical characterization is essential for advancing H2O2 electrosynthesis technology.
  • These methods facilitate the development of sustainable and economically viable H2O2 production.
  • Future innovation in optical techniques will support green industry and carbon neutrality goals.