Spartina alterniflora-derived porous carbon using as anode material for sodium-ion battery

Cheng, Hui‐Ming; Tang, Z. H.; Luo, Xingzhang; Zhang, Zheng

doi:10.1016/j.scitotenv.2021.146120

Cited by 22 publications

(7 citation statements)

References 57 publications

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“…The Nyquist plots are analyzed and fitted by an equivalent circuit mode (Figure 6a). The three samples present a semicircular shape in the high frequency range and a sloping line in the low frequency range The semicircle in the high frequency range represents charge transfer resistance ( R ct ) and the sloping line in the low frequency range represents the Warburg impedance of the ion diffusion process [31] . The R ct value of PTA‐Lys‐800 (381.4 Ω) is much smaller than those of PTA‐Lys‐700 (569.0 Ω) and PTA‐Lys‐900 (453.2 Ω).…”

Section: Resultsmentioning

confidence: 99%

High Proportion of Active Nitrogen‐Doped Hard Carbon Based on Mannich Reaction as Anode Material for High‐Performance Sodium‐Ion Batteries

et al. 2023

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The potential for energy storage in carbonaceous materials is well known. Heteroatom doping – particularly nitrogen doping – can further enhance their electrochemical performance. The type of N configuration determines the reactivity of doped carbon. It remains a challenge, however, to achieve a high ratio of active N (N‐5) in N‐doped carbon. In this study, a high proportion of active nitrogen‐doped hard carbon (PTA‐Lys‐800) is synthesized by the classical Mannich reaction, using tannic acid (TA) and amino acid as precursors. For sodium‐ion batteries (SIBs), PTA‐Lys‐800 provides outstanding cycling stability and rate performance (338.8 mAh g−1 at 100 mA g−1 for 100 cycles, a capacity retention of 86 %; 131.1 mAh g−1 at 4 A g−1 after 5000 cycles). The excellent performance of PTA‐Lys‐800 is attributed to stable hierarchical pore structure, abundant defects, and a high proportion of N‐5 formed during the carbonization process. Based on a detailed fundamental analysis, the pseudocapacitance mechanism is found to contribute to the higher sodium storage process in PTA‐Lys‐800. The Na‐adsorption mechanism is further explored through ex situ Raman spectroscopy. A new method is presented for designing carbonaceous anode materials with high capacity and long cycle life.

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Section: Resultsmentioning

confidence: 99%

High Proportion of Active Nitrogen‐Doped Hard Carbon Based on Mannich Reaction as Anode Material for High‐Performance Sodium‐Ion Batteries

et al. 2023

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“…Electrochemical impedance spectroscopy (EIS) (Figure c-d) was adopted to observe the impedance changes before and after cycling. All the curves in the graph consist of inclined straight lines in the low frequency region and half circles in the high frequency region. − The charge transfer resistance ( R ct / R ct +R f ) and ohmic contact resistance ( R s ) data in Table S2 are obtained by fitting the EIS curves with different equivalent circuits (Figure e). The R s and R ct of the CABP material before cycling are lower than those of CAB and CA, indicating that doping with abundant heteroatoms does increase the conductivity of the carbon material, improving the penetration of the electrolyte into the carbon material and enhancing the charge transfer capability.…”

Section: Resultsmentioning

confidence: 99%

Boron–Phosphorus Codoped Coral-like Hard Carbon Anodes for Sodium Ion Storage

et al. 2023

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Hard carbon materials have the advantages of low price, environmental friendliness, and good electrical conductivity but have the disadvantages of unsatisfactory sodium storage capacity and low long-cycle stability. The use of heteroatom doping and structural design can significantly improve the sodium storage properties of carbon materials. In this paper, a boron–phosphorus doped hard carbon material (CABP) was designed by using citric acid as the carbon source. The rich pore structure of CABP also provides fast transport channels for Na+, while the efficient doping of B and P atoms can distort the graphitic layer and generate more active sites and defects. The CABP carbon material therefore exhibits excellent electrochemical properties. It can obtain pretty good capacities of 246.8 mA h g–1 after 400 cycles at 0.1 A g–1. Moreover, it was able to maintain 161.9 mA h g–1 after 5000 cycles at 5 A g–1. This work provides a new route for the facile preparation of high-performance heteroatom-doped carbon materials and an idea for the preparation of diatom-doped materials for energy storage.

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“…In powder X‐ray diffraction (XRD) patterns (Figure S1), two broad peaks at 23 and 43° correspond to (002) and (100) planes, respectively. The (002) peak reflects the disordered structure of non‐graphitic and the (100) peak indicates the sp 2 ‐hybridized order of graphite structure [15] . Raman spectra demonstrated that all of the materials were amorphous carbon with different degrees of graphitization (Figure S2).…”

Section: Resultsmentioning

confidence: 99%

“…The (002) peak reflects the disordered structure of non-graphitic and the (100) peak indicates the sp 2 -hybridized order of graphite structure. [15] Raman spectra demonstrated that all of the materials were amorphous carbon with different degrees of graphitization (Figure S2).…”

Section: Characterization Of Biomass-based N-rich Porous Carbonmentioning

confidence: 99%

Biomass‐Based N‐Rich Porous Carbon Materials for CO₂ Capture and in‐situ Conversion

Xie

Yao

et al. 2022

ChemSusChem

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Capturing CO2 and subsequently converting into valuable chemicals has attracted extensive attention. Herein, a series of biomass‐based N‐rich porous carbon materials with high specific surface area and pore volume were prepared using biomass waste soybean dregs as precursors. The nitrogen content was up to 4 % with different forms in the carbon skeleton such as pyridine‐N, pyrrole‐N. The synergistic effect of ultra‐micropore (pore size <0.7 nm) and N‐containing groups endowed the materials with a high CO2 adsorption capacity, reaching 6.3 and 3.6 mmol g−1 at 0 and 25 °C under atmospheric pressure, respectively. In addition, the sufficient interaction between N‐containing groups and CO2 was demonstrated by solid‐state nuclear magnetic resonance spectroscopy, and the captured CO2 was possibly activated in the form of carbamate, which is conducive to subsequent conversion. Therefore, the supported catalyst with the as‐synthetic porous carbon material as the carrier and ZnII as catalytic sites was prepared and successfully applied for carboxylative cyclization of propargylic amine with CO2 to afford the 3‐benzyl‐5‐methyleneoxazolidin‐2‐one. The results showed that CO2 capture and in‐situ conversion work effectively to produce highly value‐added chemicals. In this process, the captured CO2 could be activated and fixed into chemicals in mild conditions. More importantly, the energy consumption in CO2 desorption and adsorbent regeneration could be avoided. The valorization of both solid waste and CO2 to valuable chemicals provides an elegant strategy of killing three birds with one stone.

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Spartina alterniflora-derived porous carbon using as anode material for sodium-ion battery

Cited by 22 publications

References 57 publications

High Proportion of Active Nitrogen‐Doped Hard Carbon Based on Mannich Reaction as Anode Material for High‐Performance Sodium‐Ion Batteries

High Proportion of Active Nitrogen‐Doped Hard Carbon Based on Mannich Reaction as Anode Material for High‐Performance Sodium‐Ion Batteries

Boron–Phosphorus Codoped Coral-like Hard Carbon Anodes for Sodium Ion Storage

Biomass‐Based N‐Rich Porous Carbon Materials for CO₂ Capture and in‐situ Conversion

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Spartina alterniflora-derived porous carbon using as anode material for sodium-ion battery

Cited by 22 publications

References 57 publications

High Proportion of Active Nitrogen‐Doped Hard Carbon Based on Mannich Reaction as Anode Material for High‐Performance Sodium‐Ion Batteries

High Proportion of Active Nitrogen‐Doped Hard Carbon Based on Mannich Reaction as Anode Material for High‐Performance Sodium‐Ion Batteries

Boron–Phosphorus Codoped Coral-like Hard Carbon Anodes for Sodium Ion Storage

Biomass‐Based N‐Rich Porous Carbon Materials for CO2 Capture and in‐situ Conversion

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Biomass‐Based N‐Rich Porous Carbon Materials for CO₂ Capture and in‐situ Conversion