兰州大学机构库 >物理科学与技术学院
Revealing the enhancement mechanism of carbon-encapsulated surface-strained MoNi4 bimetallic nanoalloys toward high-stability polysulfide conversion with a wide temperature range
Sun, Guo Wen1; Liu, Qian Yu1; Zhang, Chao Yue1; Jin, Meng Jing1; Pan, Jiang Long1; Wang, Yan Chun1,2; Hou, Xiao Yi2; Wang, Jia Tai2; Gao, Xiu Ping1; Sun, Geng Zhi3; Pan, Xiao Jun1; Zhou, JY(周金元)1,2
2023-06-01
Online publication date2023-06
Source PublicationEnergy Storage Materials   Impact Factor & Quartile
ISSN2405-8297
Volume60
page numbers13
AbstractBimetallic alloy catalysts, due to their more adsorption sites, more abundant electronic structures, and higher catalytic properties than single-metal ones, have attracted much interest in the field of lithium–sulfur batteries (LSBs). However, many LSBs with bimetallic alloys often suffered from their low cycling stability, which was caused by the over-strong adsorption and the bad chemical stability of the catalysts. Herein, in-situ carbon-encapsulation-induced strain relaxation strategy has been adopted to balance the adsorption and catalytic properties of the MoNi4 bimetallic nanoalloy catalyst for LSBs. As a result, the cathode with strained-MoNi4 embedded carbon nanofibers (CNF@s-MoNi4) delivers a high capacity (1632.5 mAh g−1 at 0.1 C), a superior rate capability (retaining 832.4 mAh g–1 at 5.0 C) and excellent cycling stability (decaying rate of 0.0204% per cycle over 520 cycles at 1.0 C). Even at high rates, the CNF@s-MoNi4 can keep a stable cycling capacity (827.5 mAh g–1 and 447.7 mAh g–1 after 250 cycles at 5.0 C and 10.0 C, respectively). Besides, the CNF@s-MoNi4 LSB also exhibits an excellent wide-temperature-range adaptability (-30 ∼ 50°C) and a superior dynamic bending stability. This study would provide a feasible method for developing high-capacity and long-life LSBs with a wide temperature range demand. © 2023
KeywordAdsorption Carbon nanofibers Chemical stability Electronic structure Molybdenum Nanocatalysts Nickel Bimetallic catalysts Bimetallics Lithium/sulfur batteries Molybdenum nickel nanoalloy Nano-alloys Reduction reaction Strain engineering Sulphur reduction Sulphur reduction reaction Wide temperature ranges
PublisherElsevier B.V.
DOI10.1016/j.ensm.2023.102842
Indexed ByEI ; SCIE
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:001058209300001
EI Accession Number20232314195762
EI KeywordsBinary alloys
EI Classification Number543.3 Molybdenum and Alloys ; 548.1 Nickel ; 761 Nanotechnology ; 801 Chemistry ; 802.3 Chemical Operations ; 933 Solid State Physics
Original Document TypeJournal article (JA)
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/529571
Collection物理科学与技术学院
Corresponding AuthorSun, Guo Wen; Sun, Geng Zhi; Pan, Xiao Jun; Zhou, Jin Yuan
Affiliation
1.Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education & School of Physical Science and Technology, Lanzhou University, 222 South Tianshui Road, Lanzhou; 730000, China;
2.Academy of Plateau Science and Sustainability & School of Physics and Electronic Information Engineering, Qinghai Normal University, 38 Haihu Avenue Extension Section, Xining; 810008, China;
3.Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing; 211816, China
First Author AffilicationSchool of Physical Science and Technology
Corresponding Author AffilicationSchool of Physical Science and Technology
Recommended Citation
GB/T 7714
Sun, Guo Wen,Liu, Qian Yu,Zhang, Chao Yue,et al. Revealing the enhancement mechanism of carbon-encapsulated surface-strained MoNi4 bimetallic nanoalloys toward high-stability polysulfide conversion with a wide temperature range[J]. Energy Storage Materials,2023,60.
APA Sun, Guo Wen.,Liu, Qian Yu.,Zhang, Chao Yue.,Jin, Meng Jing.,Pan, Jiang Long.,...&Zhou, Jin Yuan.(2023).Revealing the enhancement mechanism of carbon-encapsulated surface-strained MoNi4 bimetallic nanoalloys toward high-stability polysulfide conversion with a wide temperature range.Energy Storage Materials,60.
MLA Sun, Guo Wen,et al."Revealing the enhancement mechanism of carbon-encapsulated surface-strained MoNi4 bimetallic nanoalloys toward high-stability polysulfide conversion with a wide temperature range".Energy Storage Materials 60(2023).
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