Self-assembled peptides for coating of active sulfur nanoparticles in lithium–sulfur battery

Jewel, Yead; Yoo, Kisoo; Liu, Jin; Dutta, Prashanta

doi:10.1007/s11051-016-3364-7

Cited by 12 publications

(10 citation statements)

References 36 publications

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“…(Figure 20a) The surface coating of SNPs by synthetic peptides effectively inhibits sulfur loss from electrolyte and enables active sulfur accumulation in the cathode of Li-S batteries. [101] Moreover, a porous SNPs coated with conductive hydrogel polypyrrole provides a good buffer space for the sulfur volume expansion during lithiation, while the external polypyrene coating boosts the electrical conductivity and inhibits the transfer of polysulfides. [102] As shown in Figure 20b, a core-shell structure with polypyrroles (PPy) on SNPs can be fabricated through in situ polymerization, the internal S atoms can diffuse/fuse into the shell region, leading to the formation of internal hollow S@ PPy hybrids.…”

Section: Complexation Of Snpsmentioning

confidence: 99%

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Shaping Sulfur Precursors to Low Dimensional (0D, 1D and 2D) Sulfur Nanomaterials: Synthesis, Characterization, Mechanism, Functionalization, and Applications

Wei

Guo

et al. 2023

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Low‐dimensional sulfur nanomaterials featuring with 0D sulfur nanoparticles (SNPs), sulfur nanodots (SNDs) and sulfur quantum dots (SQDs), 1D sulfur nanorods (SNRs), and 2D sulfur nanosheets (SNSs) have emerged as an environmentally friendly, biocompatible class of metal‐free nanomaterials, sparking extensive interest in a wide range application. In this review, various synthetic methods, precise characterization, creative formation mechanism, delicate functionalization, and versatile applications of low dimensional sulfur nanomaterials over the last decades are systematically summarized. Initially, it is striven to summarize the progress of low dimensional sulfur nanomaterials from versatile precursors by using different synthetic approaches and various characterization. Then, a multi‐faceted proposed formation mechanism with emphasis on how these different precursors produce corresponding SNPs, SNDs, SQDs, SNRs, and SNSs is highlighted. Besides, it is essential to fine‐tune the surface functional groups of low dimensional sulfur nanomaterials to form new complex nanomaterials. Finally, these sulfur nanomaterials are being investigated in bio‐sensing, bio‐imaging, lithium–sulfur batteries, antibacterial activities, plant growth along with future perspective and challenges in emerging fields. The purpose of this review is to tailor low dimensional nanomaterials through accurately selecting precursors or synthetic approach and provide a foundation for the formation of versatile sulfur nanostructure.

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Section: Complexation Of Snpsmentioning

confidence: 99%

Section: Functionalizationmentioning

confidence: 99%

Shaping Sulfur Precursors to Low Dimensional (0D, 1D and 2D) Sulfur Nanomaterials: Synthesis, Characterization, Mechanism, Functionalization, and Applications

Wei

Guo

et al. 2023

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“…It was reported that the poly(leucine−lysine)-based peptide significantly suppresses the sulfur loss in the electrolyte and also proposes that it is very useful for potential applications in Li−S batteries as a coating material. 30 The polypeptoid material contains carbon (C), oxygen (O), and nitrogen (N) atoms and benzene groups. Due to the effect of electronegativity, the atoms generate polar and nonpolar bonds between C−O and C−N.…”

Section: ■ Introductionmentioning

confidence: 99%

Polypeptoid Material as an Anchoring Material for Li–S Batteries

Singh

Ahuja

2021

ACS Appl. Energy Mater.

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Nowadays, lithium−sulfur (Li−S) batteries have attracted considerable attention as a potential candidate for next-generation rechargeable batteries due to their high theoretical specific energy and environmental friendliness. One of the main problems with Li−S batteries is that the lithium polysulfides (LiPSs) easily decompose in the electrolyte which is known as the shuttle effect. Recently, the polypeptoid nanosheet crystal structure has been experimentally synthesized which is very useful for tremendous advances in soft material imaging as well as enabling to design biomimetic nanomaterials. Due to the very interesting properties of the polypeptoid material, we have investigated the electronic structure and charge-transfer mechanism for the lithium−sulfur batteries for the cathode material. The calculated adsorption energies of LiPSs on the surface of the polypeptoid material are in the range of −4.41 to −4.64 and −0.91 eV for the sulfur clusters. Also, the adsorption energies between the interaction of LiPSs and electrolytes (DME and DOL) are 0.75−0.89 eV. It means that the polypeptoid material could suppress the shuttle effect of LiPSs and significantly enhance the cycling performance of Li−S batteries. From these investigated results, the polypeptoid material will be a promising anchoring material for Li−S batteries.

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“…Only a few studies have focused on the kinetics of peptide SAM formation, with specific studies conducted on α-helical peptides, affinity peptides, − and polyproline . Polyproline SAMs are particularly attractive because they have been shown to have superior surface coverage − and thus have been utilized as anchors in many peptide-functionalized systems. − Han et al characterized the SAM formation of a lipoic-acid-terminated polyproline (lipoic acid contains thiol groups for gold binding), but like many of the other peptide SAM kinetic studies, they utilized a simple Langmuir adsorption model, which did not completely capture the adsorption behavior.…”

Section: Introductionmentioning

confidence: 99%

Self-Assembly and Rearrangement of a Polyproline II Helix Peptide on Gold

et al. 2021

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Polyproline peptide sequences have gained popularity as anchors for peptide-based self-assembled monolayers (SAMs) due to their attractive properties. In this work, peptides containing the polyproline II helix (PPII) conformation were designed and assembled on gold (Au). A quartz crystal microbalance with dissipation was used to characterize SAM formation kinetics and related properties. Peptides were designed with the sequence (GPPPPPG) 2 C. It was discovered that a biexponential adsorption and rearrangement model describes the binding kinetics of the PPII-containing peptide on Au. In this model, an initial reversible binding step is followed by an irreversible rearrangement step, given by parameter k t . This study found k t to be approximately 0.00064 s −1 for the PPII-containing peptides. Similarly, we found that the adsorption of the PPII-containing peptide on Au, given by ΔG ads , was thermodynamically favorable (−7.8 kcal mol −1 ) and comparable to other common thiol terminated SAMs on Au. Furthermore, we characterized SAM properties via QCM-D, Fouriertransform infrared (FTIR) spectroscopy, and electrochemical techniques to reveal high molecular density SAMs consisting of PPII helices. In addition, these SAMs were found to have high antifouling properties. Overall, this study characterizes the fundamental assembly mechanisms, particularly, rearrangement of PPII-containing peptides for the first time, which will be useful in the designing of future peptide-based SAMs with high surface coverage and antifouling properties.

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Self-assembled peptides for coating of active sulfur nanoparticles in lithium–sulfur battery

Cited by 12 publications

References 36 publications

Shaping Sulfur Precursors to Low Dimensional (0D, 1D and 2D) Sulfur Nanomaterials: Synthesis, Characterization, Mechanism, Functionalization, and Applications

Shaping Sulfur Precursors to Low Dimensional (0D, 1D and 2D) Sulfur Nanomaterials: Synthesis, Characterization, Mechanism, Functionalization, and Applications

Polypeptoid Material as an Anchoring Material for Li–S Batteries

Self-Assembly and Rearrangement of a Polyproline II Helix Peptide on Gold

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