Spatially Confined Formation of Single Atoms in Highly Porous Carbon Nitride Nanoreactors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F21%3A10247674" target="_blank" >RIV/61989100:27640/21:10247674 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15640/21:73607376

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acsnano.1c01872" target="_blank" >https://pubs.acs.org/doi/10.1021/acsnano.1c01872</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsnano.1c01872" target="_blank" >10.1021/acsnano.1c01872</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Spatially Confined Formation of Single Atoms in Highly Porous Carbon Nitride Nanoreactors

Popis výsledku v původním jazyce

Reducing the size of a catalyst to a single atom (SA) level can dramatically change its physicochemical properties and significantly boost its catalytic activity. However, the massive synthesis of SA catalysts still remains a grand challenge mainly because of the aggregation and nucleation of the generated atoms during the reaction. Here, we design and implement a spatially confined synthetic strategy based on a poroushollow carbon nitride (p-CN) coordinated with 1-butyl-3-methylimidazole hexafluorophosphate, which can act as a nanoreactor and allow us to obtain metal SA catalysts (p-CN@M SAs). This relatively easy and highly effective method provides a way to massively synthesize single/multiple atoms (p-CN@M SAs, M = Pt, Pd, Cu, Fe, etc.). Moreover, the amorphous NiB-coated p-CN@Pt SAs can further increase the loading amount of Pt SAs to 3.7 wt %. The synthesized p-CN@Pt&amp;NiB electrocatalyst exhibits an extraordinary hydrogen evolution reaction activity with the overpotential of 40.6 mV@10 mA/cm(-2) and the Tofel slope of 29.26 mV/dec.

Název v anglickém jazyce

Spatially Confined Formation of Single Atoms in Highly Porous Carbon Nitride Nanoreactors

Popis výsledku anglicky

Reducing the size of a catalyst to a single atom (SA) level can dramatically change its physicochemical properties and significantly boost its catalytic activity. However, the massive synthesis of SA catalysts still remains a grand challenge mainly because of the aggregation and nucleation of the generated atoms during the reaction. Here, we design and implement a spatially confined synthetic strategy based on a poroushollow carbon nitride (p-CN) coordinated with 1-butyl-3-methylimidazole hexafluorophosphate, which can act as a nanoreactor and allow us to obtain metal SA catalysts (p-CN@M SAs). This relatively easy and highly effective method provides a way to massively synthesize single/multiple atoms (p-CN@M SAs, M = Pt, Pd, Cu, Fe, etc.). Moreover, the amorphous NiB-coated p-CN@Pt SAs can further increase the loading amount of Pt SAs to 3.7 wt %. The synthesized p-CN@Pt&amp;NiB electrocatalyst exhibits an extraordinary hydrogen evolution reaction activity with the overpotential of 40.6 mV@10 mA/cm(-2) and the Tofel slope of 29.26 mV/dec.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21000 - Nano-technology

Projekt

<a href="/cs/project/EF15_003%2F0000416" target="_blank" >EF15_003/0000416: Pokročilé hybridní nanostruktury pro aplikaci v obnovitelných zdrojích energie</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

ACS Nano

ISSN

1936-0851

e-ISSN

—

Svazek periodika

15

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

7790-7798

Kód UT WoS článku

000645436800162

EID výsledku v databázi Scopus

2-s2.0-85105024353