Related Experiment Video
Updated: May 31, 2026
Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
Published on: March 29, 2016
The effect of hydrogen evolution reaction on conductance quantization of Au, Ag, Cu nanocontacts
Manabu Kiguchi1, Tatsuya Konishi, Shinichi Miura
1Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo, 060-0810, Japan. PRESTO, Japan Science and Technology Agency, Sapporo, 060-0810, Japan.
Abstract:
We have mechanically fabricated Au, Ag, and Cu nanocontacts in solution under electrochemical potential control. At the hydrogen evolution potential, fractional conductance peaks appeared near 0.5 G(0) (G(0) = 2e(2)/h) in the conductance histogram of Au and Cu. This fractional conductance peak was not observed in the conductance histogram of Ag. In the case of Au nanocontacts in 50 mM H(2)SO(4) solution, a 0.1 G(0) peak appeared in the conductance histogram, as well as the 0.5 G(0) peak. The origin of the fractional conductance peak and its metal dependence are discussed based on previously reported values of metal-hydrogen binding energy, which was estimated by the exchange current density for the hydrogen evolution reaction.
More Related Videos
08:18Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
Published on: March 4, 2021
08:31Probing Surface Electrochemical Activity of Nanomaterials using a Hybrid Atomic Force Microscope-Scanning Electrochemical Microscope (AFM-SECM)
Published on: February 10, 2021
