Sol-Gel Transition in Nanodiamond Aqueous Dispersions by Small-Angle Scattering

Kód výsledku v IS VaVaI

RIV/61389005:_____/19:00507626 - isvavai.cz

Výsledek na webu

https://doi.org/10.1021/acs.jpcc.9b03175

DOI - Digital Object Identifier

10.1021/acs.jpcc.9b03175

Jazyk výsledku

angličtina

Název v původním jazyce

Sol-Gel Transition in Nanodiamond Aqueous Dispersions by Small-Angle Scattering

Popis výsledku v původním jazyce

This paper reports the results of the comparative structural characterization of detonation nanodiamond particles and their aggregates in hydrosols and hydrogels by small-angle scattering (SAS) techniques. The data from different neutron and X-ray (synchrotron radiation) diffractometers cover a wide range of momentum transfer and show multilevel structure organizations at the size scale from 1 to 1000 nm and higher. For this purpose, in addition to the conventional SAS techniques the methods of very small-angle and ultrasmall-angle neutron scattering were applied. The fraction of nanodiamond particles in the aggregates is determined. A complex twostep mechanism of nanodiamond cluster association into a network during the sol gel transition is revealed. It is assumed that a reason for the reversibility of this process is a different compactness of the corresponding structural levels defined by different fractal organizations.

Název v anglickém jazyce

Sol-Gel Transition in Nanodiamond Aqueous Dispersions by Small-Angle Scattering

Popis výsledku anglicky

This paper reports the results of the comparative structural characterization of detonation nanodiamond particles and their aggregates in hydrosols and hydrogels by small-angle scattering (SAS) techniques. The data from different neutron and X-ray (synchrotron radiation) diffractometers cover a wide range of momentum transfer and show multilevel structure organizations at the size scale from 1 to 1000 nm and higher. For this purpose, in addition to the conventional SAS techniques the methods of very small-angle and ultrasmall-angle neutron scattering were applied. The fraction of nanodiamond particles in the aggregates is determined. A complex twostep mechanism of nanodiamond cluster association into a network during the sol gel transition is revealed. It is assumed that a reason for the reversibility of this process is a different compactness of the corresponding structural levels defined by different fractal organizations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

LM2015056: Centrum urychlovačů a jaderných analytických metod

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physical Chemistry C

ISSN

1932-7447

e-ISSN

—

Svazek periodika

123

Číslo periodika v rámci svazku

29

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

18028-18036

Kód UT WoS článku

000477785000043

EID výsledku v databázi Scopus

2-s2.0-85071258236