Method for tuning surface structure of metallic nano-catalyst and preparation method thereof
US9162222B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2011 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Dec 18, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure relates to a surface structure control and preparation process for a metal nanocatalyst involving a metal nanocatalyst. The present disclosure provides a surface structure control and continuous preparation system for a metal nanocatalyst, a metal nanocatalyst having an open surface structure and high surface energy, and a surface structure control and a preparation process thereof. The system is provided with a nucleation electrolytic cell, a distribution valve, at least two growth electrolytic cells, with two ends of the distribution valve being connected to an output port of the nucleation electrolytic cell and to input port of all the growth electrolytic cells, respectively. The metal nanocatalyst having an open surface structure is a single metal nanoscale crystal and has a high density of terrace atoms or active sites on the surface thereof. The precursor reaction solution is injected into the nucleation electrolytic cell, and a nucleation programmed potential is applied to one pair of electrodes in the nucleation electrolytic cell to obtain a nucleation reaction solution having the metal crystal nucleus formed, which is conveyed to the growth electroly…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.