Supermolecule-mediated defect engineering of porous carbons …

Porous carbon is the most promising cathode material for Zn‐ion hybrid capacitors (ZIHCs), but is limited by insufficient active adsorption sites and slow ion diffusion kinetics during charge ...

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Dual-function Engineering to Construct Ultra-Stable Anodes for ...

DOI: 10.1016/j.nanoen.2021.106903 Corpus ID: 245612758; Dual-function Engineering to Construct Ultra-Stable Anodes for Potassium-Ion Hybrid Capacitors: N, O-Doped Porous Carbon Spheres

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A high-performance potassium-ion capacitor based on a porous …

Nonaqueous metal-ion capacitors, which are energy storage devices that are generally composed of a battery-type anode and electric double-layer capacitor (EDLC)-type cathode, have attracted widely attention thanks to their advantages of both high-power density of EDLCs and high energy density of batteries [1, 2].Up to now, various nonaqueous metal-ion …

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Scalable synthesis of macroscopic porous carbon sheet anode for ...

DOI: 10.1016/j.cclet.2021.08.101 Corpus ID: 238658872; Scalable synthesis of macroscopic porous carbon sheet anode for potassium-ion capacitor @article{Qin2021ScalableSO, title={Scalable synthesis of macroscopic porous carbon sheet anode for potassium-ion capacitor}, author={Yuying Qin and Yuhao Xie and Han Zhao and Chunyan Zhu and Tongtong Li and …

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Pushing the Energy Output and Cycling Lifespan of Potassium‐Ion ...

A potassium-ion capacitor assembled by using this porous carbon as the anode, delivers a maximum energy density of 85.12 Wh/kg and power density of 11860 W/kg as well as long cycle life exceeding ...

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Technological roadmap for potassium-ion hybrid capacitors

Potassium-ion hybrid capacitors (PIHCs) are in principle advantageous over the traditional metal-ion hybrid capacitors (MIHCs) in terms of low cost, safety, and reliability, …

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Russian-Doll-Like Porous Carbon as Anode Materials ...

DOI: 10.1002/smll.202206895 Corpus ID: 255172635; Russian-Doll-Like Porous Carbon as Anode Materials for High-Performance Potassium-Ion Hybrid Capacitors. @article{Liu2022RussianDollLikePC, title={Russian-Doll-Like Porous Carbon as Anode Materials for High-Performance Potassium-Ion Hybrid Capacitors.}, author={Yujing Liu and Qi Liu and …

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Dual-function Engineering to Construct Ultra-Stable Anodes …

Potassium ion capacitors (KICs) featuring the merits of abundant potassium resources, lower standard electrode potential and low cost have been considered as potential alternatives to lithium ...

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Uncovering the design principle of conversion-based anode for potassium …

Therefore, integrating both energy storage mechanisms of supercapacitors and alkali metal ion batteries in the same system to attain device with comparatively high both power and energy densities has become the preferred approach for most researchers, and the representatives are assembling hybrid ion capacitors or introducing capacitive ...

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Hierarchical porous carbon nanofibers for compatible …

Systematic characterization analysis and first-principle calculations demonstrated that the hierarchical pores in the 1D structure, heteroatom P/N co-doping, and enlarged interlayer graphite spacing in the …

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Hierarchical porous carbon nanofibers for compatible anode and cathode ...

The development of electrode materials with the capability of balancing kinetics and capacity between a battery-type anode and capacitor-type cathode is still a grand challenge for potassium-ion hybrid capacitors (PIHCs). Herein, we report the design and synthesis of phosphorus/nitrogen co-doped hierarchical Energy &; Environmental Science Cover Art

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Recent advances in porous carbons for electrochemical energy …

Yu X, Shao M, Yang X, et al. A high-performance potassium-ion capacitor based on a porous carbon cathode originated from the Aldol reaction product[J]. Chinese Chemical Letters, 2020, 31: 2215-2218. [140] Qin Y, Xie Y, Zhao H, et al. Scalable synthesis of macroscopic porous carbon sheet anode for potassium-ion capacitor[J].

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Fast Potassium Storage in Porous CoV2O6 Nanosphere

The focus is also given to the recent trends in porous and graphene-based carbon electrode materials in asymmetric capacitor and metal ion capacitors (e.g. Li-ion, Na-ion, and K-ion capacitors ...

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Operando Studies of Bismuth Nanoparticles Embedded in N, O-Doped Porous ...

A highly viable alternative to lithium-ion batteries for stationary electrochemical energy-storage systems is the potassium dual-ion hybrid capacitor (PIHC), especially toward fast-charging capability. However, the sluggish reaction kinetics of negative electrode materials seriously impedes their pr …

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High-performance potassium ion capacitors enabled by …

DOI: 10.1016/j.carbon.2020.03.035 Corpus ID: 216196119; High-performance potassium ion capacitors enabled by hierarchical porous, large interlayer spacing, active site rich-nitrogen, and sulfur Co-doped carbon

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Hierarchical N-doped carbon nanosheets submicrospheres enable …

However, research efforts primarily focus on lithium-ion and/or sodium-ion based capacitors, potassium ion capacitor (KIC) is theoretically more sustainable and promising owing to the high abundance, low standard redox potential and low cost of the K sources.

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Excellent Electrochemical Performance of Potassium Ion Capacitor ...

The Fig. 7c summarize some potassium-ion capacitors based on carbonaceous materials and other materials. The energy density of hybrid potassium-ion capacitor is lower than that of hybrid sodium-ion capacitor. But the energy density of potassium-ion EDLC is comparable to sodium-ion and lithium-ion EDLC (Table SIV).

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Recent Developments and Future Prospects of …

Potassium-ion hybrid capacitors (PIHCs) have attracted considerable attention as emerging electrochemical energy storage devices for simultaneously achieving high energy and power density, which the key to …

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An Ultrastable Nonaqueous Potassium-Ion Hybrid …

The NbSe 2 /NSeCNFs with hierarchically porous structure and N, Se co-doping afford highly efficient channels for fast transportation of potassium ions and electrons during repeated cycling process. Furthermore, …

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Pushing the Energy Output and Cycling Lifespan of …

A PIC fabricated by employing Mn-MOF derived porous carbon (MDPC) as the anode and activated carbon as the cathode, yields an energy density of up to 120 Wh kg −1 and a maximum power density of 26 kW kg −1 …

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[PDF] Hierarchical porous carbon nanofibers for compatible …

DOI: 10.1039/d0ee00477d Corpus ID: 216290868; Hierarchical porous carbon nanofibers for compatible anode and cathode of potassium-ion hybrid capacitor @article{Hu2020HierarchicalPC, title={Hierarchical porous carbon nanofibers for compatible anode and cathode of potassium-ion hybrid capacitor}, author={Xiang Hu and Guobao Zhong …

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Porous MXenes enable high performance potassium ion capacitors

DOI: 10.1016/J.NANOEN.2019.06.013 Corpus ID: 196931628; Porous MXenes enable high performance potassium ion capacitors @article{Ming2019PorousME, title={Porous MXenes enable high performance potassium ion capacitors}, author={Fangwang Ming and Hanfeng Liang and Wenli Zhang and Jun Ming and Yongjiu Lei and Abdul-Hamid M. Emwas and Husam N. …

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High-performance potassium ion capacitors enabled by …

Potassium ion hybrid capacitors (PIHCs) have drawn considerable attention due to the fact that they can combine the merits of high energy density of potassium ion batteries (KIBs) and high power density of supercapacitors.However, the sluggish kinetics caused by the large radius of K + largely hinder the practical application of PIHCs. In this work, we report a …

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Porous current collector enables carbon superior …

sium-ion capacitor, which greatly affects the electro-chemical performance. At the same time, the current collector also affects the pre-potassium process of the potassium ion capacitor. Therefore, the modification of current collector is an effective method to enhance the electrochemical performance of PICs.

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Concunrent manipulation of anion and cation adsorption kinetics …

Potassium ion hybrid capacitors (KIHCs) are one of the most promising candidate for large scale energy storage owing to the merits of high energy/power density, natural abundance and low cost. ... first-principle calculations demonstrate that the P/N co-doping can effectively tune the electronic structure and concurrently manipulate the anion ...

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Carbon cathode with heteroatom doping and ultrahigh surface …

A high-performance potassium-ion capacitor based on a porous carbon cathode originated from the aldol reaction product. Chin Chem Lett. 2020;31(9):2215. …

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Fast Redox Kinetics in Bi‐Heteroatom Doped 3D Porous Carbon …

Potassium‐ion hybrid capacitors (PIHCs) hold the advantages of high‐energy density of batteries and high‐power output of supercapacitors and thus present great promise for the next generation of electrochemical energy storage devices. One of the most crucial tasks for developing a high‐performance PIHCs is to explore a favorable anode material with capability …

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Controllable Construction of Hierarchically Porous Carbon …

Potassium‐ion hybrid capacitors (PIHCs) shrewdly combine a battery‐type anode and a capacitor‐type cathode, exhibiting an energy density close to that of potassium ion batteries and a ...

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Porous Carbon Tubes Constructing Freestanding …

Developing electrode materials to apply in anodes and cathodes with superior kinetics and high specific capacity still remains a serious challenge for potassium-ion hybrid capacitors (PIHCs). Herein, a well …

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Controllable construction of hierarchically porous carbon …

Benefitting from the abundance and inexpensive nature of potassium resources, potassium-ion energy storage technology is considered a potential alternative to current lithium-ion systems. Potassium-ion capacitors (PICs) as a burgeoning K-ion electrochemical energy storage device, are capable of deli …

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Defect engineering of hierarchical porous carbon microspheres for ...

Owing to adjustable microstructure and stable physiochemical properties, carbon-based materials are regarded as promising materials as anodes for potassium-ion batteries (PIBs). Building amorphous structure and introducing defects are favorable methods to generate active sites and improve the electrochemical performances of carbon-based materials. In this …

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High-performance potassium ion capacitors enabled by …

As the capacitance is generally related to the surface area of electrode, achieving micropores-dominated porous carbon with large ion accessible surface area is a key …

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