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

Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

2.9K
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.
2.9K
The Z-Scheme of Electron Transport in Photosynthesis01:34

The Z-Scheme of Electron Transport in Photosynthesis

12.8K
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...
12.8K
Field Effect Transistor01:29

Field Effect Transistor

988
Field-effect transistors (FETs) are integral to electronic circuits and distinguished by their three-terminal setup: the gate, drain, and source. These transistors operate as unipolar devices, which utilize either electrons or holes as charge carriers, in contrast to bipolar transistors, which use both types of carriers. The primary function of the FET is to modulate the flow of these carriers from the source to the drain through a channel. The voltage difference between the gate and source...
988
Photochemical Electrocyclic Reactions: Stereochemistry01:26

Photochemical Electrocyclic Reactions: Stereochemistry

2.1K
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
2.1K

You might also read

Related Articles

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

Sort by
Same author

Effect of acute dietary nitrate intake on post-activation performance enhancement in male long jumpers.

Frontiers in nutrition·2026
Same author

Physiological Tolerance to Heat and Drought Are Decoupled Across Common Woody Urban Greening Species in North China.

Physiologia plantarum·2026
Same author

Proactive Early Warning of Vortex Ring State in Coaxial UAVs: A Physics-Informed Multimodal ViT-LSTM Approach.

Sensors (Basel, Switzerland)·2026
Same author

Fibroblast MrgprX2/B2 signaling drives hypertrophic scar fibrosis.

Cell reports·2026
Same author

Multi-region sampling of the human small intestine using an ingestible device.

medRxiv : the preprint server for health sciences·2026
Same author

Nanozyme-augmented clinical drug strategy for dopaminergic restoration and oxidative stress mitigation to rescue motor and cognitive deficits in Parkinson's disease.

Biomaterials·2026

Related Experiment Video

Updated: Dec 28, 2025

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

8.8K

FeO-Based Hierarchical Structures on FTO Substrates and Their Photocurrent.

Weiwei Xia1, Jiawei Sun1, Xianghua Zeng1,2

  • 1College of Physics Science and Technology & Institute of Optoelectronic Technology, Yangzhou University, Yangzhou 225002, P. R. China.

ACS Omega
|February 18, 2020
PubMed
Summary

This study developed tin-doped iron oxide nanorods for enhanced photoelectrochemical water splitting. The novel Fe3O2/FeO heterostructure improves hydrogen production and photocurrent generation under visible light.

More Related Videos

Isolating and Incorporating Light-Harvesting Antennas from Diatom Cyclotella Meneghiniana in Liposomes with Thylakoid Lipids
11:28

Isolating and Incorporating Light-Harvesting Antennas from Diatom Cyclotella Meneghiniana in Liposomes with Thylakoid Lipids

Published on: August 28, 2018

8.1K
Flash Infrared Annealing for Perovskite Solar Cell Processing
05:15

Flash Infrared Annealing for Perovskite Solar Cell Processing

Published on: February 3, 2021

8.5K

Related Experiment Videos

Last Updated: Dec 28, 2025

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

8.8K
Isolating and Incorporating Light-Harvesting Antennas from Diatom Cyclotella Meneghiniana in Liposomes with Thylakoid Lipids
11:28

Isolating and Incorporating Light-Harvesting Antennas from Diatom Cyclotella Meneghiniana in Liposomes with Thylakoid Lipids

Published on: August 28, 2018

8.1K
Flash Infrared Annealing for Perovskite Solar Cell Processing
05:15

Flash Infrared Annealing for Perovskite Solar Cell Processing

Published on: February 3, 2021

8.5K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Hematite (Fe2O3) is a promising photoanode material for photoelectrochemical (PEC) water oxidation but suffers from poor conductivity and charge separation.
  • Iron oxide (FeO) can produce hydrogen, but its synthesis requires high temperatures and reducing gases.
  • Efficient PEC water splitting is crucial for sustainable hydrogen production.

Purpose of the Study:

  • To synthesize and characterize novel FeO-based nanorods doped with tin (Sn) for improved PEC water oxidation and hydrogen evolution.
  • To investigate the effect of Sn doping on the structural and electronic properties of FeO nanorods.
  • To evaluate the performance of the modified nanorods as photoanodes under visible light.

Main Methods:

  • Preparation of Fe2O3- and FeO-based nanorods on fluorine-doped tin oxide (FTO) substrates.
  • Synthesis of Sn-doped FeOOH to achieve Fe2+ in FeO nanorods.
  • Characterization using X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS).
  • Fabrication of Fe3O2/FeO heterostructure with SnO2 nanoparticles for PEC measurements.

Main Results:

  • Sn-doped FeO-based nanorods exhibited a Fe3O2/FeO heterostructure with surface SnO2 nanoparticles.
  • Dominant Fe2+ content was observed on the surface of Sn-doped samples via XPS.
  • The modified FeO-based nanorods achieved a photocurrent density of 0.2 mA cm-2 at 1.23 V vs RHE.
  • A photocatalytic hydrogen evolution rate of 2.3 μmol h-1 cm-1 was recorded.

Conclusions:

  • Tin doping effectively creates a Fe3O2/FeO heterostructure and enhances carrier concentration in FeO nanorods.
  • The Fe3O2/FeO heterostructure with SnO2 nanoparticles demonstrates favorable band alignment for PEC water splitting.
  • The improved performance highlights the potential of Sn-doped FeO nanorods for efficient solar fuel production.