Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Sulfur Assimilation

Sulfur Assimilation

Sulfur is an essential element in biological systems, contributing to synthesizing key biomolecules, including amino acids such as cysteine and methionine, and cofactors such as coenzyme A and biotin. Microorganisms primarily assimilate sulfur as sulfate (SO₄²⁻) from the environment, which must undergo a series of biochemical transformations before it can be incorporated into cellular components. As sulfate is highly oxidized, it must undergo assimilatory sulfate reduction to...

You might also read

Related Articles

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

Sort by

Same author

Structural Differences Modulate In Vitro and In Vivo Digestion and Absorption of Milk Phospholipids: Insights from Human Milk and Infant Formula Analog Models.

Journal of agricultural and food chemistry·2026

Same author

Local and systemic immune correlates of anal high-risk HPV infection and clearance in men living with HIV and men at high risk for HIV.

Frontiers in microbiology·2026

Same author

Colchicine as an Adjunctive Therapy to Improve Ischemic Stroke Reperfusion Outcomes in Mice.

CNS neuroscience & therapeutics·2026

Same author

Decadal structural advances of oleanane-type pentacyclic triterpenoids and their pharmacological activities, a review (2015-2025).

Phytochemistry·2026

Same author

Nurse-led mobile health symptom management in patients with head and neck cancer undergoing concurrent chemoradiotherapy: a randomized controlled trial.

BMC nursing·2026

Same author

Bifidobacterium lactis XLTG11 Reduces Eczema and Infections in Infants: A Randomized Trial.

QJM : monthly journal of the Association of Physicians·2026

Search research articles

Related Experiment Video

Updated: Nov 1, 2025

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

Published on: April 27, 2018

Atomically Dispersed Fe-N₄ Modified with Precisely Located S for Highly Efficient Oxygen Reduction.

Yin Jia¹, Xuya Xiong², Danni Wang³

¹State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.

Nano-Micro Letters

|June 17, 2021

Summary

Atomically dispersed iron-nitrogen-carbon (Fe-NC) catalysts modified with sulfur (Fe-NSC) show enhanced oxygen reduction reaction performance. Sulfur doping optimizes the electronic structure for improved catalytic activity in electrochemical reactions.

Keywords:

Atomic dispersion Electronic structure Iron–nitrogen moiety Oxygen reduction Sulfur doping

More Related Videos

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

Related Experiment Videos

Last Updated: Nov 1, 2025

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

Published on: April 27, 2018

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

Area of Science:

Electrochemistry
Materials Science
Catalysis

Background:

Atomically dispersed metal-nitrogen-carbon (M-NC) materials exhibit high catalytic activity due to unsaturated coordination and strong metal-substrate interactions.
Optimizing the local coordination environment of metal centers is crucial for enhancing catalytic performance in electrochemical reactions.

Purpose of the Study:

To synthesize and characterize atomically dispersed iron-nitrogen-carbon (Fe-NC) material with precise sulfur modification at the Fe periphery (Fe-NSC).
To investigate the effect of sulfur doping on the electronic structure and oxygen reduction reaction (ORR) performance of Fe-NC catalysts.
To elucidate the mechanism by which sulfur modification enhances catalytic activity.

Main Methods:

Synthesis of Fe-NSC and Fe-NC materials.
X-ray absorption near edge structure (XANES) analysis to determine the coordination environment of Fe atoms.
Density functional theory (DFT) simulations to study electronic structure modifications and reaction mechanisms.
Electrochemical measurements (onset potential, half-wave potential) to evaluate ORR performance.

Main Results:

Fe-NSC material was successfully synthesized with Fe atoms stabilized in a Fe(N3)(N-C-S) configuration.
Sulfur doping altered the electronic structure of the Fe-N4 moiety, weakening binding to *OH intermediates and facilitating charge transfer.
Fe-NSC demonstrated significantly enhanced ORR performance with an onset potential of 1.09 V and half-wave potential of 0.92 V, outperforming Fe-NC.

Conclusions:

Precise sulfur modification of atomically dispersed Fe-NC catalysts can effectively tune the electronic structure and improve ORR activity.
The Fe(N3)(N-C-S) configuration plays a key role in the enhanced catalytic performance.
This study provides insights into optimizing M-NC catalysts through precise control of the local coordination environment for electrochemical applications.