Se-Rich Functionalized FeS_x Hollow Nanospheres for Accelerated and Long-Lasting Sodium Storage

Haruna, Baffa1,2,3; Wang, Lina1,2,4,5; Hu, Xiang1,2,3; Luo, Guangfu6; Muhammad, Mujtaba Aminu1,2; Liu, Yangjie1,2; Yu, Jiaqi1,2; Abdel-Aziz, Ahmed1,2,3; Bao, Hongli1,2,3; Wen, Zhenhai1,2,3

2024-09-01

10.1002/adfm.202414246

ADVANCED FUNCTIONAL MATERIALS   影响因子和分区

1616-301X

1616-3028

Transition metal sulfides are emerging as promising anode materials for sodium-ion batteries (SIBs) due to their high theoretical capacity and low cost, their practical application yet face critical issues of sluggish kinetics and poor cycling stability. In this study, a reliable approach is introduced to overcome these challenges by fabrication of Se-0.75-Fe1-xS0.25@SC hollow nanospheres thanks to the enriched robust Fe & horbar;S & horbar;C, C & horbar;S, and C & horbar;Se bonding, which greatly benefit for enhancing both reaction kinetics and structural stability. Kinetic study combining with in situ characterization reveals that the incorporation of rich-Se into FeSx induces the formation of cationic Fe and Se vacancies, leading to abundant sites and optimized path for sodium storage. Density functional theory calculations also demonstrate how Se-rich engineering weakens carbonaceous polar C & horbar;S & horbar;Fe bonds and accelerates reaction dynamics. The as-prepared Se-0.75-Fe1-xS0.25@SC can deliver a high reversible capacity of 515 mAh g(-1) at 2 A g(-1) over 1250 cycles and achieve superior rate capability with maintaining capacity of 418 mAh g(-1) at 10 A g(-1). This work pioneers the concept of vacancy-rich functionalized nanostructures, offering a new pathway for designing advanced electrode materials for energy storage devices.

advanced anodes Se-rich functionalization sodium-ion storage superior rate capability ultrafast kinetics

SCI

英语

其他

National key Research & Development Program of China["2022YFE0115900","2021YFA1501500"] ; Haixi Institutes, Chinese Academy of Sciences[CXZX-2023-JQ08] ; China National Postdoctoral Program for Innovative Talents[BX20230365] ; China Postdoctoral Science Foundation[2023M743494] ; null[22225107] ; null[22225902] ; null[U22A20436] ; null[22209185]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001311142400001

WILEY-V C H VERLAG GMBH

Web of Science

1.Chinese Acad Sci, Fujian Inst Res Struct Matter, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China
2.Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Prov Key Lab Mat & Tech Hydrogen Energy, Fuzhou 350002, Fujian, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Fujian Sci & Technol Innovat Lab Optoelect Informa, Fuzhou 350108, Fujian, Peoples R China
5.Fuzhou Univ, Fujian Key Lab Green Extract & High Value Utilizat, Fuzhou 350108, Peoples R China
6.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Haruna, Baffa,Wang, Lina,Hu, Xiang,et al. Se-Rich Functionalized FeS_x Hollow Nanospheres for Accelerated and Long-Lasting Sodium Storage[J]. ADVANCED FUNCTIONAL MATERIALS,2024.

Haruna, Baffa.,Wang, Lina.,Hu, Xiang.,Luo, Guangfu.,Muhammad, Mujtaba Aminu.,...&Wen, Zhenhai.(2024).Se-Rich Functionalized FeS_x Hollow Nanospheres for Accelerated and Long-Lasting Sodium Storage.ADVANCED FUNCTIONAL MATERIALS.

Haruna, Baffa,et al."Se-Rich Functionalized FeS_x Hollow Nanospheres for Accelerated and Long-Lasting Sodium Storage".ADVANCED FUNCTIONAL MATERIALS (2024).