Kinetic control of self-assembly using a low-energy electron beam

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F22%3APU145950" target="_blank" >RIV/00216305:26620/22:PU145950 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0169433222016427?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0169433222016427?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsusc.2022.154106" target="_blank" >10.1016/j.apsusc.2022.154106</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Kinetic control of self-assembly using a low-energy electron beam

Popis výsledku v původním jazyce

Self-assembly and on-surface synthesis are vital strategies used for fabricating surface-confined 1D or 2D su-pramolecular nanoarchitectures with atomic precision. In many systems, the resulting structure is determined by the kinetics of the processes involved, i.e., reaction rate, on-surface diffusion, nucleation, and growth, all of which are typically governed by temperature. However, other external factors have been only scarcely harnessed to control the on-surface chemical reaction kinetics and self-assembly. Here, we show that a low-energy electron beam can be used to steer chemical reaction kinetics and induce the growth of molecular phases unattainable by thermal annealing. The electron beam provides a well-controlled means of promoting the elementary reaction step, i.e., deprotonation of carboxyl groups. The reaction rate increases with the increasing electron beam energy beyond the threshold energy of 6 eV. Our results offer the novel prospect of controlling self-assembly, enhancing the rate of reaction steps selectively, and thus altering the kinetic rate hierarchy.

Název v anglickém jazyce

Kinetic control of self-assembly using a low-energy electron beam

Popis výsledku anglicky

Self-assembly and on-surface synthesis are vital strategies used for fabricating surface-confined 1D or 2D su-pramolecular nanoarchitectures with atomic precision. In many systems, the resulting structure is determined by the kinetics of the processes involved, i.e., reaction rate, on-surface diffusion, nucleation, and growth, all of which are typically governed by temperature. However, other external factors have been only scarcely harnessed to control the on-surface chemical reaction kinetics and self-assembly. Here, we show that a low-energy electron beam can be used to steer chemical reaction kinetics and induce the growth of molecular phases unattainable by thermal annealing. The electron beam provides a well-controlled means of promoting the elementary reaction step, i.e., deprotonation of carboxyl groups. The reaction rate increases with the increasing electron beam energy beyond the threshold energy of 6 eV. Our results offer the novel prospect of controlling self-assembly, enhancing the rate of reaction steps selectively, and thus altering the kinetic rate hierarchy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10400 - Chemical sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

APPLIED SURFACE SCIENCE

ISSN

0169-4332

e-ISSN

1873-5584

Svazek periodika

600

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

„154106“-„“

Kód UT WoS článku

000860211600005

EID výsledku v databázi Scopus

2-s2.0-85133941139