One-Step Electrochemical Synthesis of AlOx-Passivated Twisted-Phosphorene Nanosheets for Potentially Stable Energy Storage Devices

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43927525" target="_blank" >RIV/60461373:22310/23:43927525 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/full/10.1021/acsanm.2c05589" target="_blank" >https://pubs.acs.org/doi/full/10.1021/acsanm.2c05589</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsanm.2c05589" target="_blank" >10.1021/acsanm.2c05589</a>

Jazyk výsledku

angličtina

Název v původním jazyce

One-Step Electrochemical Synthesis of AlOx-Passivated Twisted-Phosphorene Nanosheets for Potentially Stable Energy Storage Devices

Popis výsledku v původním jazyce

Black phosphorus (BP), a promising 2D material for electronics, energy storage, catalysis, and sensing, has sparked a research boom. However, exfoliated thin-layered BP is unstable and can easily be degraded under environmental conditions, severely limiting its practical applications. In this context, a simple and cost-effective method has been proposed that involves electrochemically exfoliating BP and simultaneously electrochemi-cally depositing aluminum oxide (AlOx) for passivation of the exfoliated BP. The ambient stability of the exfoliated BP is studied using a time-dependent atomic force microscope (AFM). The AlOx capping layer significantly improves the environmental stability of BP compared to uncapped BP. The thermal stability of the resulting BP is evaluated using power-dependent Raman spectroscopy. The results show that the AlOx-passivated BP has increased thermal stability, with only a slight shift in peak position toward higher Raman power intensity. These properties can make the material suitable for stable energy storage devices. Interestingly, the electrochemical exfoliation and passivation processes resulted in the BP with a twist angle (9.86 degrees), which is expected to exhibit unique electronic properties similar to those of graphene with a twist angle.

Název v anglickém jazyce

One-Step Electrochemical Synthesis of AlOx-Passivated Twisted-Phosphorene Nanosheets for Potentially Stable Energy Storage Devices

Popis výsledku anglicky

Black phosphorus (BP), a promising 2D material for electronics, energy storage, catalysis, and sensing, has sparked a research boom. However, exfoliated thin-layered BP is unstable and can easily be degraded under environmental conditions, severely limiting its practical applications. In this context, a simple and cost-effective method has been proposed that involves electrochemically exfoliating BP and simultaneously electrochemi-cally depositing aluminum oxide (AlOx) for passivation of the exfoliated BP. The ambient stability of the exfoliated BP is studied using a time-dependent atomic force microscope (AFM). The AlOx capping layer significantly improves the environmental stability of BP compared to uncapped BP. The thermal stability of the resulting BP is evaluated using power-dependent Raman spectroscopy. The results show that the AlOx-passivated BP has increased thermal stability, with only a slight shift in peak position toward higher Raman power intensity. These properties can make the material suitable for stable energy storage devices. Interestingly, the electrochemical exfoliation and passivation processes resulted in the BP with a twist angle (9.86 degrees), which is expected to exhibit unique electronic properties similar to those of graphene with a twist angle.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/LL2101" target="_blank" >LL2101: Příští Generace Monoelementárních 2D Materiálů</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

ACS Applied Nano Materials

ISSN

2574-0970

e-ISSN

2574-0970

Svazek periodika

6

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

3912-3918

Kód UT WoS článku

000942935700001

EID výsledku v databázi Scopus

2-s2.0-85149465125