Search results for: Peixun Xiong

Items from 1 to 20 out of 22 results

article

A Hydrogel Electrolyte with High Adaptability over a Wide Temperature Range and Mechanical Stress for Long‐Life Flexible Zinc‐Ion Batteries

Jingran Zhang, Chuyuan Lin, Lingxing Zeng, Hui Lin, more

Small > 20 > 30 > n/a - n/a

Flexible zinc‐ion batteries have garnered significant attention in the realm of wearable technology. However, the instability of hydrogel electrolytes in a wide‐temperature range and uncontrollable side reactions of the Zn electrode have become the main problems for practical applications. Herein, N,N‐dimethylformamide (DMF) to design a binary solvent (H₂O‐DMF) is introduced and combined it with polyacrylamide...

article

High‐Performance Wide‐pH Zn‐Based Batteries via Electrode Interface Regulation with Valine Additive

Hui Lin, Chuyuan Lin, Fuyu Xiao, Lingjun He, more

Advanced Functional Materials > 34 > 13 > n/a - n/a

Aqueous zinc (Zn) based batteries show great promise as energy storage devices, cost‐effectiveness, and intrinsic safety. However, the development of Zn‐based batteries faces significant challenges, primarily stemming from poor electrochemical reversibility caused by dendrite growth, hydrogen generation, and byproduct formation on the Zn anode. In this study, valine (Val) is investigated as an electrolyte...

article

Sulfur Mismatch Substitution in Layered Double Hydroxides as Efficient Oxygen Electrocatalysts for Flexible Zinc–Air Batteries

Xiaotong Han, Nannan Li, Jae Sung Baik, Peixun Xiong, more

Advanced Functional Materials > 33 > 11 > n/a - n/a

Although layered double hydroxides (LDHs) are extensively investigated for oxygen electrocatalysis, their development is hampered by their limited active sites and sluggish reaction kinetics. Here, sulfur mismatch substitution of NiFe–LDH (S–LDH) is demonstrated, which are in‐situ deposited on nitrogen‐doped graphene (S–LDH/NG). This atomic‐level sulfur incorporation leads to the construction of the...

article

Crystallinity Regulated Functional Separator Based on Bimetallic Ni_xFe_y Alloy Nanoparticles for Facilitated Redox Kinetics of Lithium–Sulfur Batteries

Qing Liu, Xiaotong Han, Zhiyong Zheng, Peixun Xiong, more

Advanced Functional Materials > 32 > 47 > n/a - n/a

The practical application of lithium–sulfur batteries (LSBs) is limited by the shuttle effect of lithium polysulfides (LiPSs), large volume expansion, and sluggish conversion kinetics of sulfur. Herein, the crystallinity regulation of Ni_xFe_y alloy anchored on oxidized carbon nanotube/nitrogen‐doped graphene (Ni_xFe_y@OCNT/NG) for application of a functional separator into LSBs is demonstrated. A low...

article

Hierarchically structured silicon/graphene composites wrapped by interconnected carbon nanotube branches for lithium‐ion battery anodes

Sang Joon Lee, Yun Sang Joe, Jeong Seok Yeon, Dong Hyun Min, more

International Journal of Energy Research > 46 > 11 > 15627 - 15638

Despite a high theoretical capacity, relatively low potential, and natural abundance, the practical application of Si anode is limited by a drastic volume change and low electrical conductivity. To resolve these issues, herein, we demonstrated a hierarchically structured composite, consisting of Si microparticle/reduced graphene oxide (rGO) wrapped by interconnected carbon nanotube (CNT) branches...

article

NiFe‐layered double hydroxide nanosheets grafted onto carbon nanotubes for functional separator of lithium sulfur batteries

Qing Liu, Xiaotong Han, Qingyun Dou, Peixun Xiong, more

International Journal of Energy Research > 46 > 7 > 9634 - 9642

A rational design of functional separators that include abundant active sites and high electrochemical stability without Li⁺ ion transport sacrifice is important for inhibiting the shuttle effect of lithium polysulfides (LiPSs) and improving the utilization efficiency of sulfur for high performance lithium sulfur batteries (LSB). Herein, we report a straightforward modification chemistry of separator...

article

Electrospun conductive carbon nanofiber hosts for stable zinc metal anode

Sang Ha Baek, Yoon Jin Cho, Jae Min Park, Peixun Xiong, more

International Journal of Energy Research > 46 > 6 > 7201 - 7214

Rechargeable zinc metal batteries (RZMBs) are emerging as promising candidates to replace lithium‐ion batteries due to their low cost, safety, and stability under ambient atmosphere. As the conductive substrates lower the actual current density, it is considered a chemical strategy to resolve the dendrite issue of RZMB. Herein, we propose to use the carbon nanofiber as a conductive substrate for the...

article

Cover Image

Sang Ha Baek, Yoon Jin Cho, Jae Min Park, Peixun Xiong, more

International Journal of Energy Research > 46 > 6 > ii - ii

The cover image is based on the Research Article Electrospun conductive carbon nanofiber hosts for stable zinc metal anode by Sang Ha Baek et al., https://doi.org/10.1002/er.7609.

article

Structure Engineering of BiSbS_x Nanocrystals Embedded within Sulfurized Polyacrylonitrile Fibers for High Performance of Potassium‐Ion Batteries

Xinye Li, Yanru Liu, Chuyuan Lin, Yiyi Wang, more

Chemistry – A European Journal > 28 > 21 > n/a - n/a

Potassium‐ion batteries (PIBs) are regarded as promising candidates in next‐generation energy storage technology; however, the electrode materials in PIBs are usually restricted by the shortcomings of large volume expansion and poor cycling stability stemming from a high resistance towards diffusion and insertion of large‐sized K ions. In this study, BiSbS_x nanocrystals are rationally integrated with...

article

Soluble Organic Cathodes Enable Long Cycle Life, High Rate, and Wide‐Temperature Lithium‐Ion Batteries

Mengjie Li, Jixing Yang, Yeqing Shi, Zifeng Chen, more

Advanced Materials > 34 > 5 > n/a - n/a

Organic electrode materials free of rare transition metal elements are promising for sustainable, cost‐effective, and environmentally benign battery chemistries. However, severe shuttling effect caused by the dissolution of active materials in liquid electrolytes results in fast capacity decay, limiting their practical applications. Here, using a gel polymer electrolyte (GPE) that is in situ formed...

article

In Situ Electropolymerization Enables Ultrafast Long Cycle Life and High‐Voltage Organic Cathodes for Lithium Batteries

Chen Zhao, Zifeng Chen, Wei Wang, Peixun Xiong, more

Angewandte Chemie International Edition > 59 > 29 > 11992 - 11998

Organic cathode materials have attracted extensive attention because of their diverse structures, facile synthesis, and environmental friendliness. However, they often suffer from insufficient cycling stability caused by the dissolution problem, poor rate performance, and low voltages. An in situ electropolymerization method was developed to stabilize and enhance organic cathodes for lithium batteries...

article

In Situ Electropolymerization Enables Ultrafast Long Cycle Life and High‐Voltage Organic Cathodes for Lithium Batteries

Chen Zhao, Zifeng Chen, Wei Wang, Peixun Xiong, more

Angewandte Chemie > 132 > 29 > 12090 - 12096

article

Rational Molecular Design of Benzoquinone‐Derived Cathode Materials for High‐Performance Lithium‐Ion Batteries

Jixing Yang, Peixun Xiong, Yeqing Shi, Pengfei Sun, more

Advanced Functional Materials > 30 > 15 > n/a - n/a

p‐Benzoquinone (BQ) is a promising cathode material for lithium‐ion batteries (LIBs) due to its high theoretical specific capacity and voltage. However, it suffers from a serious dissolution problem in organic electrolytes, leading to poor electrochemical performance. Herein, two BQ‐derived molecules with a near‐plane structure and relative large skeleton: 1,4‐bis(p‐benzoquinonyl)benzene (BBQB) and...

article

A Redox‐Active 2D Metal–Organic Framework for Efficient Lithium Storage with Extraordinary High Capacity

Qiang Jiang, Peixun Xiong, Jingjuan Liu, Zhen Xie, more

Angewandte Chemie International Edition > 59 > 13 > 5273 - 5277

Metal–organic framework cathodes usually exhibit low capacity and poor electrochemical performance for Li‐ion storage owing to intrinsic low conductivity and inferior redox activity. Now a redox‐active 2D copper–benzoquinoid (Cu‐THQ) MOF has been synthesized by a simple solvothermal method. The abundant porosity and intrinsic redox character endow the 2D Cu‐THQ MOF with promising electrochemical activity...

article

Cover Picture: A Redox‐Active 2D Metal–Organic Framework for Efficient Lithium Storage with Extraordinary High Capacity (Angew. Chem. Int. Ed. 13/2020)

Qiang Jiang, Peixun Xiong, Jingjuan Liu, Zhen Xie, more

Angewandte Chemie International Edition > 59 > 13 > 4973 - 4973

2D conjugated MOFs offer a versatile platform for new electronic and energy storage devices. In their Communication on page 5273, E. Hu, Y. Xu, L. Chen, and co‐workers report a semiconductive copper‐benzoquinoid 2D MOF (Cu‐THQ) with extraordinary high capacity for Li‐ion batteries. The Li storage mechanism was further elucidated in situ by comprehensive spectroscopic analysis during the charge–discharge...

article

Titelbild: A Redox‐Active 2D Metal–Organic Framework for Efficient Lithium Storage with Extraordinary High Capacity (Angew. Chem. 13/2020)

Qiang Jiang, Peixun Xiong, Jingjuan Liu, Zhen Xie, more

Angewandte Chemie > 132 > 13 > 5005 - 5005

Konjugierte 2D‐MOFs …. … bieten eine vielseitige Plattform für neue Elektronik‐ und Energiespeichereinheiten. In ihrer Zuschrift auf S. 5311 berichten E. Hu, Y. Xu, L. Chen und Mitarbeiter über ein halbleitendes Kupfer‐Benzochinoid‐2D‐MOF (Cu‐THQ) mit außergewöhnlich hoher Kapazität für den Einsatz in Lithiumionenbatterien. Der Li‐Speichermechanismus wurde durch spektroskopische Analyse des Lade‐...

article

A Redox‐Active 2D Metal–Organic Framework for Efficient Lithium Storage with Extraordinary High Capacity

Qiang Jiang, Peixun Xiong, Jingjuan Liu, Zhen Xie, more

Angewandte Chemie > 132 > 13 > 5311 - 5315

article

Bismuth Nanoparticle@Carbon Composite Anodes for Ultralong Cycle Life and High‐Rate Sodium‐Ion Batteries

Peixun Xiong, Panxing Bai, Ang Li, Benfang Li, more

Advanced Materials > 31 > 48 > n/a - n/a

Bismuth has emerged as a promising anode material for sodium‐ion batteries (SIBs), owing to its high capacity and suitable operating potential. However, large volume changes during alloying/dealloying processes lead to poor cycling performance. Herein, bismuth nanoparticle@carbon (Bi@C) composite is prepared via a facile annealing method using a commercial coordination compound precursor of bismuth...

article

Uniformly Dispersed Freestanding Carbon Nanofiber/Graphene Electrodes Made by a Scalable Biological Method for High‐Performance Flexible Supercapacitors

Honglin Luo, Peixun Xiong, Jing Xie, Zhiwei Yang, more

Advanced Functional Materials > 28 > 48 > n/a - n/a

A novel facile and scalable strategy is developed to prepare freestanding carbon nanofiber/graphene nanosheet composites using a scalable membrane–liquid interface culture method followed by carbonization. The carbon nanofibers (CNFs) and graphene nanosheets (GNs) are uniformly dispersed in a three‐dimensional (3D) conductive architecture. Robust mechanical properties are demonstrated with fine flexibility,...

article

A Polysulfide‐Immobilizing Polymer Retards the Shuttling of Polysulfide Intermediates in Lithium–Sulfur Batteries

Shuibin Tu, Xiang Chen, Xinxin Zhao, Mingren Cheng, more

Advanced Materials > 30 > 45 > n/a - n/a

Lithium–sulfur batteries are regarded as one of the most promising candidates for next‐generation rechargeable batteries. However, the practical application of lithium–sulfur (Li–S) batteries is seriously impeded by the notorious shuttling of soluble polysulfide intermediates, inducing a low utilization of active materials, severe self‐discharge, and thus a poor cycling life, which is particularly...

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INFONA - science communication portal

Search results for: Peixun Xiong

A Hydrogel Electrolyte with High Adaptability over a Wide Temperature Range and Mechanical Stress for Long‐Life Flexible Zinc‐Ion Batteries

High‐Performance Wide‐pH Zn‐Based Batteries via Electrode Interface Regulation with Valine Additive

Sulfur Mismatch Substitution in Layered Double Hydroxides as Efficient Oxygen Electrocatalysts for Flexible Zinc–Air Batteries

Crystallinity Regulated Functional Separator Based on Bimetallic Ni_xFe_y Alloy Nanoparticles for Facilitated Redox Kinetics of Lithium–Sulfur Batteries

Hierarchically structured silicon/graphene composites wrapped by interconnected carbon nanotube branches for lithium‐ion battery anodes

NiFe‐layered double hydroxide nanosheets grafted onto carbon nanotubes for functional separator of lithium sulfur batteries

Electrospun conductive carbon nanofiber hosts for stable zinc metal anode

Cover Image

Structure Engineering of BiSbS_x Nanocrystals Embedded within Sulfurized Polyacrylonitrile Fibers for High Performance of Potassium‐Ion Batteries

Soluble Organic Cathodes Enable Long Cycle Life, High Rate, and Wide‐Temperature Lithium‐Ion Batteries

In Situ Electropolymerization Enables Ultrafast Long Cycle Life and High‐Voltage Organic Cathodes for Lithium Batteries

In Situ Electropolymerization Enables Ultrafast Long Cycle Life and High‐Voltage Organic Cathodes for Lithium Batteries

Rational Molecular Design of Benzoquinone‐Derived Cathode Materials for High‐Performance Lithium‐Ion Batteries

A Redox‐Active 2D Metal–Organic Framework for Efficient Lithium Storage with Extraordinary High Capacity

Cover Picture: A Redox‐Active 2D Metal–Organic Framework for Efficient Lithium Storage with Extraordinary High Capacity (Angew. Chem. Int. Ed. 13/2020)

Titelbild: A Redox‐Active 2D Metal–Organic Framework for Efficient Lithium Storage with Extraordinary High Capacity (Angew. Chem. 13/2020)

A Redox‐Active 2D Metal–Organic Framework for Efficient Lithium Storage with Extraordinary High Capacity

Bismuth Nanoparticle@Carbon Composite Anodes for Ultralong Cycle Life and High‐Rate Sodium‐Ion Batteries

Uniformly Dispersed Freestanding Carbon Nanofiber/Graphene Electrodes Made by a Scalable Biological Method for High‐Performance Flexible Supercapacitors

A Polysulfide‐Immobilizing Polymer Retards the Shuttling of Polysulfide Intermediates in Lithium–Sulfur Batteries

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