Identifying single-atom catalysts for boosted Al–S conversion reactions

Ju, Shunlong; Yuan, Chongyang; Zheng, Jie-Ning; Long, Yao; Zhang, Tengfei; Xia, Guanglin

doi:10.1016/j.ensm.2022.08.030

Cited by 11 publications

(8 citation statements)

References 39 publications

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“…Therefore, SACo@NC is considered to be more effective in catalyzing the reduction of sulfur, making it one of the most promising catalysts for facilitating AlÀ S interconversion reactions. [48] Based on the findings obtained from the DFT analysis, it can be concluded that the electrochemical tests provided confirmation of the catalytic impact of SATM@NC on the interconversion reactions involving AlÀ S. The utilization of atomic cobalt catalysis in conjunction with porous carbon nanoconfinement yielded noteworthy rate performance in the SACo@NC sample containing 50 wt % sulfur loading. The material exhibited a notable specific capacity of 485.8 mAh g À 1 when subjected to a current density of up to 2 A g À 1 .…”

Section: Computational Design Of Cathodes Materials For Aluminum-sulf...mentioning

confidence: 76%

“…In particular, when seeing the entire discharge process, SACo@NC consistently exhibits the most negative Gibbs‐free energy, while the energies required in the rate‐limiting step are reasonable. Therefore, SACo@NC is considered to be more effective in catalyzing the reduction of sulfur, making it one of the most promising catalysts for facilitating Al−S interconversion reactions [48] . Based on the findings obtained from the DFT analysis, it can be concluded that the electrochemical tests provided confirmation of the catalytic impact of SATM@NC on the interconversion reactions involving Al−S.…”

Section: Theoretical Progressmentioning

confidence: 91%

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Recent Theoretical and Experimental Advancements of Aluminum‐Sulfur Batteries

Faheem,

Hussain,

Ali

et al. 2023

The Chemical Record

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Aluminum‐sulfur batteries (AlSBs) exhibit significant potential as energy storage systems due to their notable attributes, including a high energy density, cost‐effectiveness, and abundant availability of aluminum and sulfur. In order to commercialize AlSBs, an understanding of their working principles is necessary. In this review, we examine the current advancements in cathodes, both in theory and practice, as well as the progress made in aqueous and nonaqueous electrolytes. We also explore the modifications made to separators and the theoretical understanding of problems associated with AlSBs. Furthermore, we discuss future research directions aimed at resolving these issues. Our aim is to summarize the current progress in AlSBs and, based on recent progress and understanding of the mechanism, help design a battery to overcome the challenges that such batteries have been facing.

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Section: Computational Design Of Cathodes Materials For Aluminum-sulf...mentioning

confidence: 76%

Section: Theoretical Progressmentioning

confidence: 91%

Recent Theoretical and Experimental Advancements of Aluminum‐Sulfur Batteries

Faheem,

Hussain,

Ali

et al. 2023

The Chemical Record

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show abstract

“…Aluminum metal batteries (AMBs) are potential energy storage devices complementary to the state-of-the-art lithium-ion batteries, due to the high theoretical capacity (2980 mA h g −1 , 8050 mAh cm −3 ), low cost, and high abundance of aluminum cathode side, materials that can adsorb polysulfides have been employed as the host material of sulfur to reduce the dissolution of polysulfides, [24][25][26], for example, heteroatom-functionalized and/or hierarchical porous carbonaceous materials, metalorganic frameworks (MOFs), boron nitrides, and Mxenes. [18,27] Catalysts that can further anchor the polysulfides and simultaneously promote the sluggish electrochemical conversion between S and Al 2 S 3 are also embedded to the aforementioned host materials, [28][29][30], for example, Mo 6 S 8 , [31] and TiN. [32] In addition to the cathode, electrolyte design approaches preventing the diffusion of polysulfides are also reported, resulting in remarkably enhanced cyclability.…”

Section: Introductionmentioning

confidence: 99%

Modified Solid Electrolyte Interphases with Alkali Chloride Additives for Aluminum–Sulfur Batteries with Enhanced Cyclability

Cheng

Diemant

Liu

et al. 2023

Adv Funct Materials

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Aluminum-sulfur batteries employing high-capacity and low-cost electrode materials, as well as non-flammable electrolytes, are promising energy storage devices. However, the fast capacity fading due to the shuttle effect of polysulfides limits their further application. Herein, alkaline chlorides, for example, LiCl, NaCl, and KCl are proposed as electrolyte additives for promoting the cyclability of aluminum-sulfur batteries. Using NaCl as a model additive, it is demonstrated that its addition leads to the formation of a thicker, Na x Al y O 2 -containing solid electrolyte interphase on the aluminum metal anode (AMA) reducing the deposition of polysulfides. As a result, a specific discharge capacity of 473 mAh g −1 is delivered in an aluminumsulfur battery with NaCl-containing electrolyte after 50 dis-/charge cycles at 100 mA g −1 . In contrast, the additive-free electrolyte only leads to a specific capacity of 313 mAh g −1 after 50 cycles under the same conditions. A similar result is also observed with LiCl and KCl additives. When a KCl-containing electrolyte is employed, the capacity increases to 496 mA h g −1 can be achieved after 100 cycles at 50 mA g −1 . The proposed additive strategy and the insight into the solid electrolyte interphase are beneficial for the further development of long-life aluminum-sulfur batteries.

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“…To date, extensive strategies have been developed to address these obstacles in Al–S batteries, including the design of sulfur hosts, electrolyte engineering, and separator modification. − Various catalysts as sulfur hosts are proven to reduce the polarization of sulfur batteries, e.g., transition metal/sulfides, , single-atom catalysts, − nitrogen-doped carbon . The cyclability of Al–S batteries is also enhanced with lithium salts employed as electrolyte additives, via promoting the chemical reactivation of aluminum polysulfides species .…”

Section: Introductionmentioning

confidence: 99%