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Interfacial Electrochemical Methods: Overview

Interfacial Electrochemical Methods: Overview

Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...

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Updated: Apr 19, 2026

Light Enhanced Hydrofluoric Acid Passivation: A Sensitive Technique for Detecting Bulk Silicon Defects

Light Enhanced Hydrofluoric Acid Passivation: A Sensitive Technique for Detecting Bulk Silicon Defects

Published on: January 4, 2016

Interfacial oxygen stabilizes composite silicon anodes.

Chuan-Fu Sun¹, Hongli Zhu, Morihiro Okada

¹Department of Chemistry and Biochemistry, University of Maryland , College Park, Maryland 20742, United States.

|December 17, 2014

Summary

This summary is machine-generated.

Chemically tailoring the silicon-carbon interface with atomic oxygen significantly enhances silicon anode performance in batteries. This breakthrough improves cycle life by 300% and boosts energy storage capacity for next-generation batteries.

Keywords:

electrical energy storage high-capacity electrode interfacial chemistry lithium ion battery nanocomposite silicon anode

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Last Updated: Apr 19, 2026

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Published on: January 4, 2016

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Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

Published on: February 11, 2020

Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Silicon anodes offer ten times the lithium storage capacity of graphite.
Significant volume changes during cycling limit silicon anode practical application.

Purpose of the Study:

To improve the cycle life and electrochemical performance of silicon-carbon composite electrodes.
To investigate the role of chemical tailoring at the silicon-carbon interface.

Main Methods:

Chemical modification of the silicon-carbon interface using atomic oxygen.
Fabrication of silicon/carbon matrix-composite electrodes.
Electrochemical testing including capacity retention and rate capability.

Main Results:

A 300% improvement in cycle life was achieved for interface-tailored electrodes.
High areal capacity (3.86 mAh/cm(2)) and specific capacity (922 mAh/g) were attained.
Excellent cyclability with 80% capacity retention after 160 cycles and sustained high rate performance.

Conclusions:

Chemical tailoring of the Si-C interface with atomic oxygen significantly enhances electrode stability and performance.
Improved structural and electrical interconnections are key to the observed electrochemical improvements.
Interfacial bonding presents a promising new strategy for developing advanced silicon anodes.