N/S codoped carbon microboxes with expanded interlayer distance toward excellent potassium storage

Li, Youpeng; Zhong, Wentao; Yang, Chenghao; Zheng, Fenghua; Pan, Qichang; Liu, Yanzhen; Wang, Gang; Xiong, Xunhui; Liu, Meilin

doi:10.1016/j.cej.2018.10.135

Cited by 118 publications

(59 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to this inner@outer special feature, compared with others carbon‐based anodes, the NMCP@rGO exhibits outstanding rate properties, especially at ultrahigh current densities of 2.0 and 5.0 A g −1 (Figure 3e). [ 1,2,14,15,17–19,38,25 ]…”

Section: Resultsmentioning

confidence: 99%

“…There are many kinds of PIBs anode materials, including metal, [ 10 ] transition‐metal selenides/sulfides, [ 11,12 ] alloy‐based materials, [ 13 ] and carbon‐based materials. [ 14–18 ] The carbon‐based anode with the intercalation mechanism is regarded as one of the best candidates for a PIHC in a large‐scale practical storage application in the future. [ 19,20 ] Unfortunately, this scenario is compromised by an unfavorable rate performance and insufficient cycling lifespan in existing carbon‐based PIBs anodes, which fails to match the kinetics and stability of capacitor‐style cathodes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Rational Construction of Nitrogen‐Doped Hierarchical Dual‐Carbon for Advanced Potassium‐Ion Hybrid Capacitors

Ruan

Chen

et al. 2020

Advanced Energy Materials

207

139

View full text Add to dashboard Cite

Potassium‐ion hybrid capacitors (PIHCs), elaborately integrate the advantages of high output power as well as long lifespan of supercapacitors and the high energy density of batteries, and exhibit great possibilities for the future generations of energy storage devices. The critical next step for future implementation lies in exploring a high‐rate battery‐type anode with an ultra‐stable structure to match the capacitor‐type cathode. Herein, a “dual‐carbon” is constructed, in which a three‐dimensional nitrogen‐doped microporous carbon polyhedron (NMCP) derived from metal‐organic frameworks is tightly wrapped by two‐dimensional reduced graphene oxide (NMCP@rGO). Benefiting from the synergistic effect of the inner NMCP and outer rGO, the NMCP@rGO exhibits a superior K‐ion storage capability with a high reversible capacity of 386 mAh g−1 at 0.05 A g−1 and ultra‐long cycle stability with a capacity of 151.4 mAh g−1 after 6000 cycles at 5.0 A g−1. As expected, the as‐assembled PIHCs with a working voltage as high as 4.2 V present a high energy/power density (63.6 Wh kg−1 at 19 091 W kg−1) and excellent capacity retention of 84.7% after 12 000 cycles. This rational construction of advanced PIHCs with excellent performance opens a new avenue for further application and development.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Rational Construction of Nitrogen‐Doped Hierarchical Dual‐Carbon for Advanced Potassium‐Ion Hybrid Capacitors

Ruan

Chen

et al. 2020

Advanced Energy Materials

207

139

View full text Add to dashboard Cite

show abstract

“…As illustrated in Figure 4e and Table 1, the NPCF-800 with high doping level of the pyrrolic and pyridinic N represents one of the best performances of carbonaceous anodes used in PIBs. [18][19][20][21][22]24,26,27,[30][31][32][33][34]37,38,[45][46][47][48][49][50][51] Besides, such ultrafast potassium storage and excellent cycling stability have been seldom reported in PIBs.…”

Section: Resultsmentioning

confidence: 99%

Energetic Metal–Organic Frameworks Derived Highly Nitrogen‐Doped Porous Carbon for Superior Potassium Storage

Tong

Wang

et al. 2020

Small

View full text Add to dashboard Cite

The carbonaceous materials with low cost and high safety have been considered as promising anodes for potassium‐ion batteries (PIBs). However, it is still a challenge to design a carbonaceous material with long cycle life and high rate performance due to the poor K+ reaction kinetics. Herein, this article reports a N‐doped porous carbon framework (NPCF) with a high nitrogen content of 13.57 at% within high doping level of the pyrrolic N and pyridinic N, which exhibits a high reversible capacity of 327 mA h g−1 over 100 cycles at a current density of 100 mA g−1, excellent rate capability (144 and 105 mA h g−1 at 10 and 20 A g−1, respectively) and great cyclability of 258.9 mA h g−1 after 2000 cycles at 1 A g−1. Such a high rate performance and excellent cycling stability anode material is seldom reported in PIBs. Density functional theory (DFT) calculations reveal that the pyrrolic and pyridinic N‐doping are helpful to enhance the K adsorption ability, thereby increasing the specific capacity.

show abstract

“…Nitrogen‐doping can introduce abundant defects and active sites as well as enhance the interaction between carbon and sodium ions as a result of the increased electronegativity, which benefits greater sodium ion storage through adsorption [26] . Furthermore, the adsorption can facilitate sodium ion transmission with no volume change, and the electroconductibility of the CoSe 2 @NC composite can also be increased by nitrogen‐doping, benefiting the rate of charge transport and cycling stability [27] …”

Section: Resultsmentioning

confidence: 99%

Building Hierarchical Microcubes Composed of One‐Dimensional CoSe₂@Nitrogen‐Doped Carbon for Superior Sodium Ion Batteries

Liu

Hou

et al. 2020

Chemistry A European J

Self Cite

View full text Add to dashboard Cite

Designing and synthesizing highly stable anode materials with high capacity is critical for the practical application of sodium ion batteries (SIBs), however, to date, this remains an insurmountable barrier. The introduction of hierarchical architectures and carbon supports is proving an effective strategy for addressing these challenges. Thus, we have fabricated a hierarchical CoSe2@nitrogen‐doped carbon (CoSe2@NC) microcube composite using the Prussian blue analogue Co3[Co(CN)6]2 as template. The rational combination of the unique hierarchical construction from one to three dimensions and a nitrogen‐doped carbon skeleton facilitates sodium ion and electron transport as well as stabilizing the host structure during repeated discharge/charge processes, which contributes to its excellent sodium storage capability. As expected, the as‐prepared CoSe2@NC composite delivered remarkable reversible capacity and ultralong cycling lifespan even at a high rate of 2.0 A g−1 (384.3 mA h g−1 after1800 loops) when serving as the anode material for SIBs. This work shows the great potential of the CoSe2‐based anode for practical application in SIBs, and the original strategy may be extended to other anode materials.

show abstract

N/S codoped carbon microboxes with expanded interlayer distance toward excellent potassium storage

Cited by 118 publications

References 46 publications

Rational Construction of Nitrogen‐Doped Hierarchical Dual‐Carbon for Advanced Potassium‐Ion Hybrid Capacitors

Rational Construction of Nitrogen‐Doped Hierarchical Dual‐Carbon for Advanced Potassium‐Ion Hybrid Capacitors

Energetic Metal–Organic Frameworks Derived Highly Nitrogen‐Doped Porous Carbon for Superior Potassium Storage

Building Hierarchical Microcubes Composed of One‐Dimensional CoSe₂@Nitrogen‐Doped Carbon for Superior Sodium Ion Batteries

Contact Info

Product

Resources

About

N/S codoped carbon microboxes with expanded interlayer distance toward excellent potassium storage

Cited by 118 publications

References 46 publications

Rational Construction of Nitrogen‐Doped Hierarchical Dual‐Carbon for Advanced Potassium‐Ion Hybrid Capacitors

Rational Construction of Nitrogen‐Doped Hierarchical Dual‐Carbon for Advanced Potassium‐Ion Hybrid Capacitors

Energetic Metal–Organic Frameworks Derived Highly Nitrogen‐Doped Porous Carbon for Superior Potassium Storage

Building Hierarchical Microcubes Composed of One‐Dimensional CoSe2@Nitrogen‐Doped Carbon for Superior Sodium Ion Batteries

Contact Info

Product

Resources

About

Building Hierarchical Microcubes Composed of One‐Dimensional CoSe₂@Nitrogen‐Doped Carbon for Superior Sodium Ion Batteries