Surface engineering strategy using urea to improve the rate performance of Na2Ti3O7 in Na‐ion batteries

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43920433" target="_blank" >RIV/60461373:22310/21:43920433 - isvavai.cz</a>

Výsledek na webu

<a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/chem.202003129" target="_blank" >https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/chem.202003129</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/chem.202003129" target="_blank" >10.1002/chem.202003129</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Surface engineering strategy using urea to improve the rate performance of Na2Ti3O7 in Na‐ion batteries

Popis výsledku v původním jazyce

Na2Ti3O7 (NTO) is considered a promising anode material for Na‐ion batteries due to its layered structure with an open framework and low and safe average operating voltage of 0.3 V vs. Na+/Na. However, its poor electronic conductivity needs to be addressed to make this material attractive for practical applications among other anode choices. Here, we report a safe, controllable and affordable method using urea that significantly improves the rate performance of NTO by producing surface defects (e.g. oxygen vacancies and hydroxyl groups) and the secondary phase Na2Ti6O13. A comprehensive study using a combination of diffraction, microscopic, spectroscopic and electrochemical techniques supported by computational studies based on DTF calculations, was carried out to understand the effects of this treatment on the surface, chemistry and electronic and charge storage properties of NTO. This study underscores the benefits of using urea as a strategy for enhancing the charge storage properties of NTO and thus, unfolding the potential of this material in practical energy storage applications.

Název v anglickém jazyce

Surface engineering strategy using urea to improve the rate performance of Na2Ti3O7 in Na‐ion batteries

Popis výsledku anglicky

Na2Ti3O7 (NTO) is considered a promising anode material for Na‐ion batteries due to its layered structure with an open framework and low and safe average operating voltage of 0.3 V vs. Na+/Na. However, its poor electronic conductivity needs to be addressed to make this material attractive for practical applications among other anode choices. Here, we report a safe, controllable and affordable method using urea that significantly improves the rate performance of NTO by producing surface defects (e.g. oxygen vacancies and hydroxyl groups) and the secondary phase Na2Ti6O13. A comprehensive study using a combination of diffraction, microscopic, spectroscopic and electrochemical techniques supported by computational studies based on DTF calculations, was carried out to understand the effects of this treatment on the surface, chemistry and electronic and charge storage properties of NTO. This study underscores the benefits of using urea as a strategy for enhancing the charge storage properties of NTO and thus, unfolding the potential of this material in practical energy storage applications.

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/LTAUSA19034" target="_blank" >LTAUSA19034: Dvoudimenzionální nanomateriály pro aplikace v elektronice</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Chemistry A European Journal

ISSN

0947-6539

e-ISSN

—

Svazek periodika

27

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

38

Strana od-do

3875-3886

Kód UT WoS článku

000607564600001

EID výsledku v databázi Scopus

2-s2.0-85099339484