Recent progress in quantum dots based nanocomposite electrodes for rechargeable monovalent metal-ion and lithium metal batteries

Rangaswamy, P.; Pai, Ranjith Krishna; Ghosh, Debasis

doi:10.1039/d1ta06747h

Cited by 14 publications

(7 citation statements)

References 271 publications

(291 reference statements)

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“…Compared to the typical active materials, QDs with ultrafine particle size offer excellent surface characteristics, shorter ion diffusion distance, excellent dispersibility, as well as better structural integrity against volume change during cycling. [21] Also, high electrical conductivity, excellent stability, ultrahigh energy density, and superior specific capacitance can be obtained when QDs were employed as electrode for supercapacitor. [38] In sum, QD materials own several unique characteristics, which are promising for utilization in energy conversion and storage fields.…”

Section: Introductionmentioning

confidence: 99%

“…[18] In 1993, when Murray et al [19] first developed a simple method to synthesis of QDs with high quality, quantum dot size modification is widely used to enhance the properties of the bulk-shape materials. [20,21] In fact, quantum dot size modification strategy is used in different types of materials, e.g., metal oxides, [22] metal chalcogenides, [23] metal halides, [24] oxysalts, [25] and nonmetal semiconductors. [26] QD size materials own several unique characteristics, which are promising for the researches in energy conversion and storage.…”

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confidence: 99%

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Semiconducting Quantum Dots for Energy Conversion and Storage

Huang

2023

Adv Funct Materials

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Semiconducting quantum dots (QDs) have received huge attention for energy conversion and storage due to their unique characteristics, such as quantum size effect, multiple exciton generation effect, large surface‐to‐volume ratio, high density of active sites, and so on. However, the holistic and systematic understanding of the energy conversion and storage mechanism centering on QDs in specific application is still lacking. Herein, a comprehensive introduction of these extraordinary 0D materials, e.g., metal oxide, metal dichalcogenide, metal halides, multinary oxides, and nonmetal QDs, is presented. It starts with the synthetic strategies and unique properties of QDs. Highlights are focused on the rational design and development of advanced QDs‐based materials for the various applications in energy‐related fields, including photocatalytic H2 production, photocatalytic CO2 reduction, photocatalytic N2 reduction, electrocatalytic H2 evolution, electrocatalytic CO2 reduction, electrocatalytic N2 fixation, electrocatalytic O2 evolution, electrocatalytic O2 reduction, solar cells, metal‐ion batteries, lithium–sulfur batteries, metal–air batteries, and supercapacitors. At last, challenges and perspectives of semiconducting QDs for energy conversion and storage are detailedly proposed.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Semiconducting Quantum Dots for Energy Conversion and Storage

Huang

2023

Adv Funct Materials

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“…[79][80][81][82] Previous reviews have summarized the application of QDs for energy conversion and storage in general. [83][84][85][86] Even in these reviews, they only focused on the carbon-based QDs (carbon QDs, graphene QDs). [87][88][89] In this paper, we extensively reviewed the most recent advances in the rational designs of QD-based nanocomposites in Li-S batteries, with the emphasis on the optimal synthesis strategies as well as the structure-performance correlations.…”

Section: Introductionmentioning

confidence: 99%

Application of Inorganic Quantum Dots in Advanced Lithium–Sulfur Batteries

Wang

Che

et al. 2023

Advanced Science

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Lithium–sulfur (Li‐S) batteries have emerged as one of the most attractive alternatives for post‐lithium‐ion battery energy storage systems, owing to their ultrahigh theoretical energy density. However, the large‐scale application of Li–S batteries remains enormously problematic because of the poor cycling life and safety problems, induced by the low conductivity , severe shuttling effect, poor reaction kinetics, and lithium dendrite formation. In recent studies, catalytic techniques are reported to promote the commercial application of Li–S batteries. Compared with the conventional catalytic sites on host materials, quantum dots (QDs) with ultrafine particle size (<10 nm) can provide large accessible surface area and strong polarity to restrict the shuttling effect, excellent catalytic effect to enhance the kinetics of redox reactions, as well as abundant lithiophilic nucleation sites to regulate Li deposition. In this review, the intrinsic hurdles of S conversion and Li stripping/plating reactions are first summarized. More importantly, a comprehensive overview is provided of inorganic QDs, in improving the efficiency and stability of Li–S batteries, with the strategies including composition optimization, defect and morphological engineering, design of heterostructures, and so forth. Finally, the prospects and challenges of QDs in Li–S batteries are discussed.

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“…On the other hand, QDs will show nice affinity for alkali metals, as they, by virtue of their ultra‐small size, can provide surface vacancies and dangling bonds for metal nucleation. [ 12 ] However, QDs are susceptible to agglomeration during repeated electrochemical processes due to high reactivity. [ 13 ] If further packaging QDs into carbon shells to form carbon/QDs composite superlattice, such hybrid superstructure will be more stable to achieve the alkali‐metal intercalation due to the confined effect and fast electron transfer of carbon coatings.…”

Section: Introductionmentioning

confidence: 99%

Interlayer Sodium Plating/Stripping in Van der Waals‐Layered Quantum Dot Superstructure

Yuan

Liu

Wang

et al. 2023

Small

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Assembling quantum dots (QDs) into van der Waals (vdW)‐layered superstructure holds great promise for the development of high‐energy‐density metal anode. However, designing such a superstructure remains to be challenging. Here, a chemical‐vapor Oriented Attachment (OA) growth strategy is proposed to achieve the synthesis of vdW‐layered carbon/QDs hybrid superlattice nanosheets (Fe7S8@CNS) with a large vdW gap of 3 nm. The Fe7S8@CNS superstructure is assembled by carbon‐coated Fe7S8 (Fe7S8@C) QDs as building blocks. Interestingly, the Fe7S8@CNS exhibits two kinds of edge dislocations similar to traditional atom‐layered materials, suggesting that Fe7S8@C QDs exhibit quasi‐atomic growth behavior during the OA process. More interestingly, when used as host materials for sodium metal anodes, the Fe7S8@CNS shows the interlayer sodium plating/stripping behavior, which well suppresses Na dendrite growth. As a result, the cell with Fe7S8@CNS anode can keep stable cycling for 1000 h with a high Coulombic efficiency (CE) of ≈99.5% at 3.0 mA cm−2 and 3.0 mAh cm−2. Noticeably, the Na@Fe7S8@CNS||Na3V2(PO4)3 full cells can attain a capacity of 88.8 mAh g−1 with a retention of 97% after 1000 cycles at 1.0 A g−1 (≈8 C), showing excellent cycle stability for practical applications. This work enriches the vdW‐layered QDs superstructure family and their application toward energy storage.

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Recent progress in quantum dots based nanocomposite electrodes for rechargeable monovalent metal-ion and lithium metal batteries

Abstract: Engineering electrode architecture with an abundant active surface for charge storage, shorter ion diffusion path, low charge transfer resistance, and structural integrity against volume change during cycling are the key...

Cited by 14 publications

References 271 publications

Semiconducting Quantum Dots for Energy Conversion and Storage

Semiconducting Quantum Dots for Energy Conversion and Storage

Application of Inorganic Quantum Dots in Advanced Lithium–Sulfur Batteries

Interlayer Sodium Plating/Stripping in Van der Waals‐Layered Quantum Dot Superstructure

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