Boosting K+ Capacitive Storage in Dual-Doped Carbon Crumples with B-N Moiety via a General Protic-Salt Synthetic Strategy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F21%3A10248486" target="_blank" >RIV/61989100:27710/21:10248486 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.webofscience.com/wos/woscc/full-record/WOS:000728589300001" target="_blank" >https://www.webofscience.com/wos/woscc/full-record/WOS:000728589300001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/adfm.202109969" target="_blank" >10.1002/adfm.202109969</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Boosting K+ Capacitive Storage in Dual-Doped Carbon Crumples with B-N Moiety via a General Protic-Salt Synthetic Strategy

Popis výsledku v původním jazyce

The heteroatom co-doped carbonaceous anodes have readily attracted great attention in potassium-ion batteries (PIBs), owing to their augmented carbon interlayer distances and increased K+ storage sites to induce enhanced capacity value. Nevertheless, the synergistic effect of dual-doped heteroatoms is still unclear and lacks systematic explorations. In addition, traditional synthetic routes are cumbersome with template removal step, which are normally deficient in product scalability. Herein, a generic protic-salt strategy is devised to realize sulfur-, phosphorus- or boron-nitrogen dual-doped carbon (SNC, PNC, or BNC) via varying the types of protic precursors (e.g., the acid). Throughout comprehensive instrumental probing and theoretical simulation, it is identified that the presence of B-N moiety can harvest high adsorption capability of K+ and hence exhibit more obvious pseudo-capacitance behavior than bare N-doped carbon counterpart. As a PIB anode, the BNC electrode displays an impressive reversible capacity (360.5 mAh gMINUS SIGN 1 at 0.1 A gMINUS SIGN 1) and cycle stability (125.4 mAh gMINUS SIGN 1 at 1 A gMINUS SIGN 1 after 3000 cycles). In situ/ex situ characterizations further reveal the origin of the excellent electrochemical properties of the BNC electrode. Such a tailorable protic-salt derived anode material offers new possibilities to advance PIB devices. (C) 2021 Wiley-VCH GmbH

Název v anglickém jazyce

Boosting K+ Capacitive Storage in Dual-Doped Carbon Crumples with B-N Moiety via a General Protic-Salt Synthetic Strategy

Popis výsledku anglicky

The heteroatom co-doped carbonaceous anodes have readily attracted great attention in potassium-ion batteries (PIBs), owing to their augmented carbon interlayer distances and increased K+ storage sites to induce enhanced capacity value. Nevertheless, the synergistic effect of dual-doped heteroatoms is still unclear and lacks systematic explorations. In addition, traditional synthetic routes are cumbersome with template removal step, which are normally deficient in product scalability. Herein, a generic protic-salt strategy is devised to realize sulfur-, phosphorus- or boron-nitrogen dual-doped carbon (SNC, PNC, or BNC) via varying the types of protic precursors (e.g., the acid). Throughout comprehensive instrumental probing and theoretical simulation, it is identified that the presence of B-N moiety can harvest high adsorption capability of K+ and hence exhibit more obvious pseudo-capacitance behavior than bare N-doped carbon counterpart. As a PIB anode, the BNC electrode displays an impressive reversible capacity (360.5 mAh gMINUS SIGN 1 at 0.1 A gMINUS SIGN 1) and cycle stability (125.4 mAh gMINUS SIGN 1 at 1 A gMINUS SIGN 1 after 3000 cycles). In situ/ex situ characterizations further reveal the origin of the excellent electrochemical properties of the BNC electrode. Such a tailorable protic-salt derived anode material offers new possibilities to advance PIB devices. (C) 2021 Wiley-VCH GmbH

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20400 - Chemical engineering

Projekt

<a href="/cs/project/EF16_019%2F0000853" target="_blank" >EF16_019/0000853: Institut environmentálních technologií - excelentní výzkum</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

Advanced Functional Materials

ISSN

1616-301X

e-ISSN

—

Svazek periodika

2021

Číslo periodika v rámci svazku

December 2021

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

000728589300001

EID výsledku v databázi Scopus

2-s2.0-85120917987