Computational insight of monolayer SnS2 as anode material for potassium ion batteries

Rehman, Javed; Fan, Xiaofeng; Zheng, Weitao

doi:10.1016/j.apsusc.2019.143625

Cited by 71 publications

(45 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where

E_{K_{x 1}}

represents the energy of

K_{x_{1}} S n C

E_{K_{x 2}}

denotes the energy of

K_{x_{2}} S n C

, and

E_{K}

depicts the energy of bulky K. The calculated voltage profile is exhibited in Figure a. The average OCV for K x SnC is 0.415 V. Our findings reveal that the average OCV of K x SnC is much lower than the formerly described in 2D materials having K adsorption, such as K x MoS 2 (0.84 V), K x PC (0.69 V), K x TiSe 2 (0.49 V), and K x TiS 2 (1.0 V) . These results encapsulate that the voltage profile is matching the voltages of the commercially utilized anode materials such as TiO 2 (1.5–1.8 V) and graphite (0.11 V) .…”

Section: Resultsmentioning

confidence: 63%

“…The binding energy reduces with the growing of K content (shown in Figure b). This may conduct to strong Coulomb interaction between K + ‐K + which causes the drop in binding strength …”

Section: Resultsmentioning

confidence: 99%

“…These 2D materials display strong binding strength with adsorbed Li ions which represents the requirement of anodes of Li‐based energy consuming devices. Since the future technology of LIBs is shadowed, this will render their technological applications costly because of the lacking reserves of Li (17/10000 wt%) on earth. This situation is mainly owing to the extensive usage of graphite anode materials in LIBs that possess a lesser specific capacity and poor rate capability.…”

Section: Introductionmentioning

confidence: 99%

“…This situation is mainly owing to the extensive usage of graphite anode materials in LIBs that possess a lesser specific capacity and poor rate capability. In the search of alternative materials to LIBs, K‐ion batteries (KIBs) have reinforced the research community due to the high reservoirs of K (2.09 wt%) about 900 times greater than that of Li …”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Adsorption and Diffusion of Potassium on 2D SnC Sheets for Potential High‐Performance Anodic Applications of Potassium‐Ion Batteries

et al. 2020

Self Cite

View full text Add to dashboard Cite

Pertinent electrochemical characteristics based on K-ion batteries (KIBs) represent a compelling class of electrode materials that may substitute lithium-ion batteries, owing to their low cost and common abundance. In this paper, the structural, electronic, and electrochemical features of two-dimensional (2D) material, the so-called SnC monolayer, is investigated for anode applications employing first-principle calculations. Pristine monolayer SnC is found to be an indirect band semiconductor with a band gap of 0.91 and 1.73 eV using PBE and HSE06 schemes, respectively. However, holding a small content of K on the T-site, this 2D material has a semi-metallic behavior (due to the defect state), while the conductivity is enhanced by undertaking the adsorption of K on the H-site. As an anode material, monolayer SnC illustrates a low average open-circuit voltage of 0.415 V for KIBs with a high K storage capacity of 410 mAhg À 1. The low diffusion barrier (0.17 eV) on the surface of SnC sheet conducts fast charge/discharge cycles. Our results indicate that the 2D SnC could be a promising anode material for K-ion batteries. According to these findings, we recommend that monolayer SnC can serve as expedient material with tunable capacity and high rate performance for next generation K-ion batteries.

show abstract

“…where

E_{K_{x 1}}

represents the energy of

K_{x_{1}} S n C

E_{K_{x 2}}

denotes the energy of

K_{x_{2}} S n C

, and

E_{K}

Section: Resultsmentioning

confidence: 63%

“…The binding energy reduces with the growing of K content (shown in Figure b). This may conduct to strong Coulomb interaction between K + ‐K + which causes the drop in binding strength …”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Adsorption and Diffusion of Potassium on 2D SnC Sheets for Potential High‐Performance Anodic Applications of Potassium‐Ion Batteries

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…In addition, 2D materials possess unusual electronic, mechanical and optical properties and hence, they can be used as building blocks in a wide range of composites. Concerning the contemporary applications of 2D compounds, they serve as efficient catalysts for water splitting [6][7][8][9][10][11][12][13][14][15] or organic reactions [16][17][18][19][20][21], drug carriers [22][23][24][25][26][27][28][29][30][31], sensors [32][33][34][35][36][37][38][39], materials for energy production and storage [2,15,21,[40][41][42][43][44][45][46][47][48][49] or adsorbers [50]…”

Section: Introductionmentioning

confidence: 99%

Antioxidant Materials Based on 2D Nanostructures: A Review on Recent Progresses

et al. 2020

View full text Add to dashboard Cite

Counteracting reactive oxygen species (ROS, e.g., superoxide radical ion, H2O2 and hydroxyl radical) is an important task in fighting against oxidative stress-related illnesses and in improving product quality in industrial manufacturing processes. This review focuses on the recent advances on two-dimensional (2D) nanomaterials of antioxidant activity, which are designed for effective decomposition of ROS and thus, for reduction of oxidative stress. Some materials featured in this paper are of uni- or multi-lamellar structures modified with small molecular or enzymatic antioxidants. Others are enzyme-mimicking synthetic compounds (the so-called nanozymes) prepared without antioxidant additives. However, carbon-based materials will not be included, as they were extensively reviewed in the recent past from similar aspects. Given the landmark development around the 2D materials used in various bio-applications, sheet-like antioxidant compounds are of great interest in the scientific and technological communities. Therefore, the authors hope that this review on the recent progresses will be helpful especially for researchers working on novel developments to substantially reduce oxidative stress either in biological systems or industrial liquors.

show abstract

Cu₁₂Sb₄S₁₃ Quantum Dots/Few‐Layered Ti₃C₂ Nanosheets with Enhanced K⁺ Diffusion Dynamics for Efficient Potassium Ion Storage

Cao

Zhang

Chen

et al. 2021

Adv Funct Materials

View full text Add to dashboard Cite

Despite the high theoretical specific capacity of transition-metal disulfides anode for potassium-ion batteries (PIBs), their development has been greatly hindered by dramatic capacity fading and poor cycle life. Herein, the synthesis of the new composite of Cu 12 Sb 4 S 13 quantum dots/few-layered Ti 3 C 2 nanosheets (CAS-Ti 3 C 2 ) as advanced anode for boosting the K ion storage is reported. It is found that as-made CAS-Ti 3 C 2 show a strong synergistic effect between quantum dots and Ti 3 C 2 nanosheets mainly caused by the formation of the Ti-S bond, which can not only shorten the diffusion path of K + but also accommodate the serious volumetric variation during the discharge/charge process. As expected, this specially designed CAS-Ti 3 C 2 anode exhibits a superior reversible specific capacity of 496.7 mAh g −1 at 100 mA g −1 after 200 cycles and 175.6 mAh g −1 at a high current density of 1.0 A g −1 even over 1800 cycles, preceding most of the reported transition-metal disulfides quantum dots-based anodes for PIBs. These comprehensive studies reveal that the excellent electrochemical property is attributed to the fast K + diffusion kinetics and unique transformation and restorage mechanism between K + with CAS-Ti 3 C 2 anode.

show abstract

Computational insight of monolayer SnS2 as anode material for potassium ion batteries

Cited by 71 publications

References 49 publications

Adsorption and Diffusion of Potassium on 2D SnC Sheets for Potential High‐Performance Anodic Applications of Potassium‐Ion Batteries

Adsorption and Diffusion of Potassium on 2D SnC Sheets for Potential High‐Performance Anodic Applications of Potassium‐Ion Batteries

Antioxidant Materials Based on 2D Nanostructures: A Review on Recent Progresses

Cu₁₂Sb₄S₁₃ Quantum Dots/Few‐Layered Ti₃C₂ Nanosheets with Enhanced K⁺ Diffusion Dynamics for Efficient Potassium Ion Storage

Contact Info

Product

Resources

About

Computational insight of monolayer SnS2 as anode material for potassium ion batteries

Cited by 71 publications

References 49 publications

Adsorption and Diffusion of Potassium on 2D SnC Sheets for Potential High‐Performance Anodic Applications of Potassium‐Ion Batteries

Adsorption and Diffusion of Potassium on 2D SnC Sheets for Potential High‐Performance Anodic Applications of Potassium‐Ion Batteries

Antioxidant Materials Based on 2D Nanostructures: A Review on Recent Progresses

Cu12Sb4S13 Quantum Dots/Few‐Layered Ti3C2 Nanosheets with Enhanced K+ Diffusion Dynamics for Efficient Potassium Ion Storage

Contact Info

Product

Resources

About

Cu₁₂Sb₄S₁₃ Quantum Dots/Few‐Layered Ti₃C₂ Nanosheets with Enhanced K⁺ Diffusion Dynamics for Efficient Potassium Ion Storage