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Updated: Nov 21, 2025

Gyroid Nickel Nanostructures from Diblock Copolymer Supramolecules

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Published on: April 28, 2014

Understanding Superatomic Ag Nanohydrides.

Xiang He^1,2, Michael Walter³, De-En Jiang¹

¹Department of Chemistry, University of California, Riverside, CA, 92521, USA.

Small (Weinheim an Der Bergstrasse, Germany)

|January 15, 2021

Summary

This summary is machine-generated.

Silver nanohydrides are stable at the nanoscale, unlike bulk materials. Hydrogen atoms contribute electrons, forming stable superatomic structures following electron shell closings.

Keywords:

density functional theory calculations electronic structure nanoclusters silver nanohydrides superatoms

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Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

Area of Science:

Nanomaterials Science
Computational Chemistry
Solid State Physics

Background:

Bulk silver hydrides are difficult to synthesize, requiring extreme pressures.
Nanomaterials offer unique properties potentially enabling hydride formation at lower pressures.

Purpose of the Study:

Investigate the formation and electronic structure of silver nanohydrides.
Explore the stability of hydrogen adsorption on silver clusters.

Main Methods:

Density functional theory (DFT) calculations.
Superatomic perspective applied to Ag38 clusters and their hydrides (Ag38H2n).

Main Results:

Energetically favorable hydrogen adsorption on Ag38 clusters forming Ag38H2n nanohydrides.
Adsorbed hydrogen contributes electrons, behaving metallically within the superatom structure.
Stable compositions (Ag38H2, Ag38H20, Ag38H30) identified, corresponding to superatom electron shell closings (40, 58, 68 electrons).

Conclusions:

Nanoscale silver offers a pathway to stable silver hydride formation.
The superatomic complex model accurately describes the electronic structure and stability of these nanohydrides.
Geometric and symmetry factors intricately influence the superatomic orbital interactions.