High-stability tin/carbon battery electrodes produced using reduction expansion synthesis

Lee, Tongli Lim; Adams, Ryan A.; Luhrs, Claudia; Arora, Anjela; Wu, Chun-Hsien; Phillips, Jonathan

doi:10.1016/j.carbon.2018.02.079

Cited by 18 publications

(9 citation statements)

References 32 publications

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“…Recently, potassium‐ion batteries (PIBs) have attracted increasing interests as alternatives to LIBs because of abundant reserves (2.85% of K compared to 0.065% of Li on Earth) . Various anode materials including carbonaceous materials, transition metal oxides and sulfides, phosphorus, antimony, tin, and their compounds have been explored as anodes for alkali metal ion batteries . Despite the similarity in Li/K‐storage mechanisms, the electrochemical properties of the materials are different due to the larger ionic radius of K + (1.38 Å) compared to Li + (0.76 Å) .…”

Section: Introductionmentioning

confidence: 99%

In Situ Revealing the Electroactivity of PO and PC Bonds in Hard Carbon for High‐Capacity and Long‐Life Li/K‐Ion Batteries

Qian

Jiang

et al. 2019

Advanced Energy Materials

238

132

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The low capacity and unsatisfactory rate capability of hard carbon still restricts its practical application for Li/K‐ion batteries. Herein, a low‐cost and large‐scale method is developed to fabricate phosphorus‐doped hard carbon (PHC‐700) by crosslinking phosphoric acid and epoxy resin and followed by annealing at 700 °C. H3PO4 acts not only as a crosslinker to solidify epoxy resin for promoting the degree of graphitization and lowering the specific surface area, but also as phosphorus source for forming PC and PO bonds, thus providing more active sites for Li/K storage. As a result, the PHC‐700 electrode delivers a highly reversible capacity of 1294.8 mA h g−1 at 0.1 A g−1 and a capacity of 214 mA h g−1 after 10 000 cycles at 10 A g−1. As for potassium‐ion batteries, PHC‐700 exhibits a reversible capacity of 381.9 mA h g−1 at 0.1 A g−1 and a capacity of 260 mA h g−1 after 1000 cycles at 0.2 A g−1. In situ Raman and in situ NMR measurements reveal that the P‐containing bonds can enhance the adsorption to alkali metal ions, and the PC bond can participate in electrochemical redox reaction by forming Lix PCy . Additionally, P‐doped hard carbon shows better structural/interfacial stability for improved long‐term cycling stability.

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Section: Introductionmentioning

confidence: 99%

In Situ Revealing the Electroactivity of PO and PC Bonds in Hard Carbon for High‐Capacity and Long‐Life Li/K‐Ion Batteries

Qian

Jiang

et al. 2019

Advanced Energy Materials

238

132

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“…Considering the reduction of SnO 2 with phosphorus doping, green peaks at 495.0 and 486.7 eV for Sn 2+ are clearly observed in the spectra for the P-SnO x /C sample . Furthermore, orange peaks at 494.3/485.9 eV represent atomic Sn . Also, a peak shift to higher binding energy is observed for the P-SnO x /C sample, which indicates more electron loss and enhanced interaction of Sn compared with that of the SnO 2 /C sample.…”

Section: Results and Discussionmentioning

confidence: 91%

Metaphosphate-Bridged Interface Boosts High-Performance Lithium Storage

Chen

Peng

Gong

et al. 2022

ACS Appl. Mater. Interfaces

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Carbon materials with well-dispersed SnO x particles exhibit excellent lithium-storage performance. However, the volume change of SnO x and the weak interaction between SnO x and carbon induce an unsteady SnO x –C interface during the lithiation/delithiation process. This phenomenon results in enhanced charge transfer resistance and reduced electrical contact of active materials, which leads to low reversibility of tin oxidation, restricted capacity, sluggish kinetics, structural deterioration, and rapid capacity decay. Herein, tin oxide/carbon composites with a metaphosphate-bridged interface are synthesized to construct a robust interfacial contact between tin oxides and carbon. The metaphosphate group functions as a bridge between SnO x and carbon and results in excellent electrochemical stability during the charge/discharge process, which is favorable for electrode structural integrity. The formation of the metaphosphate-bridged interface provides a steady transport channel for e–/Li+ and thus improves the reversibility of the conversion reaction. The enhanced charge transfer and interaction can also boost the charge transfer between SnO x and carbon, which leads to higher SnO x utilization. Thus, the prepared P-SnO x /C anode exhibits enhanced lithium-storage performance in terms of specific capacity, cycling stability, and rate performance.

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“…The Raman spectra of XC-72 and MoO x -C both display two primary signals at around 1580 and 1320 cm −1 (Figure 1d) correlating to graphitic carbon (G band) and disordered carbon (D band), respectively. 52 The intensity ratio of D and G bands (I D /I G ) decreases from 1.06 for XC-72 to 0.96 for MoO x -C, indicating that the graphitized lattice of XC-72 is unaltered during the formation of MoO x -C. Additionally, two weak bands located at around 460 and 600 cm −1 in the Raman spectrum of MoO x -C (Figure 1d) are attributed to the stretching vibrations of Mo−O bonds. 53 peaks.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Designed Formation of Hollow Pt Nanocrystals Supported on MoO_x-Modified Carbon for High-Performance Methanol Electro-Oxidation

Yang

Cui

et al. 2018

ACS Sustainable Chem. Eng.

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In this study, we develop an efficient electrocatalyst for methanol oxidation, Pt nanocrystals (NCs) with hollow structure immobilized on MoO x -modified carbon black (h-Pt/MoO x -C). The MoO x -C is fabricated by phosphomolybdic acid self-assembly on carbon black. The h-Pt/MoO x -C evolved from Ag@Pt core−shell NCs deposited on MoO x -C in saturated NaCl aqueous solution containing NH 4 OH. Because of the presence of MoO x , the electrocatalyst of solid Pt NCs anchored on MoO x -C (Pt/MoO x -C) for methanol oxidation exhibits about 3.4 times higher electrocatalytic activity than solid Pt NCs anchored on carbon black (Pt/C−H). The mass activity of h-Pt/MoO x -C is 2.4 times greater than that of Pt/MoO x -C, ascribing to the unique hollow structure. Furthermore, the h-Pt/MoO x -C also exhibits better tolerance to poisoning species and is more stable under electro-oxidation conditions.

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High-stability tin/carbon battery electrodes produced using reduction expansion synthesis

Cited by 18 publications

References 32 publications

In Situ Revealing the Electroactivity of PO and PC Bonds in Hard Carbon for High‐Capacity and Long‐Life Li/K‐Ion Batteries

In Situ Revealing the Electroactivity of PO and PC Bonds in Hard Carbon for High‐Capacity and Long‐Life Li/K‐Ion Batteries

Metaphosphate-Bridged Interface Boosts High-Performance Lithium Storage

Designed Formation of Hollow Pt Nanocrystals Supported on MoO_x-Modified Carbon for High-Performance Methanol Electro-Oxidation

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High-stability tin/carbon battery electrodes produced using reduction expansion synthesis

Cited by 18 publications

References 32 publications

In Situ Revealing the Electroactivity of PO and PC Bonds in Hard Carbon for High‐Capacity and Long‐Life Li/K‐Ion Batteries

In Situ Revealing the Electroactivity of PO and PC Bonds in Hard Carbon for High‐Capacity and Long‐Life Li/K‐Ion Batteries

Metaphosphate-Bridged Interface Boosts High-Performance Lithium Storage

Designed Formation of Hollow Pt Nanocrystals Supported on MoOx-Modified Carbon for High-Performance Methanol Electro-Oxidation

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Designed Formation of Hollow Pt Nanocrystals Supported on MoO_x-Modified Carbon for High-Performance Methanol Electro-Oxidation