2020
DOI: 10.1016/j.jechem.2020.03.005
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Nitrogen doping and graphitization tuning coupled hard carbon for superior potassium-ion storage

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Cited by 75 publications
(39 citation statements)
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“…The ex-situ Raman spectra were done to verify the mixed K-ion storage mechanism, as shown in Figure 4a. The charge-discharge curve of the first cycle is illustrated in 93 was similar to the report by J. Hu et al 84 and truly justified the mixed intercalation and adsorption mechanism.…”
Section: K-ion Storage Mechanismsupporting
confidence: 84%
See 1 more Smart Citation
“…The ex-situ Raman spectra were done to verify the mixed K-ion storage mechanism, as shown in Figure 4a. The charge-discharge curve of the first cycle is illustrated in 93 was similar to the report by J. Hu et al 84 and truly justified the mixed intercalation and adsorption mechanism.…”
Section: K-ion Storage Mechanismsupporting
confidence: 84%
“…[80][81][82] Potassium ion storage mechanisms in carbon-based materials mainly follow a "mixed potassium storage mechanism," which involves adsorption, pore filling, and intercalation. [83][84][85][86][87][88][89][90][91][92] To investigate the K-ion storage mechanism in partially graphitized hard carbon (NGHC) J. Hu et al 84 carried the cyclic voltammetry (CV) measurement at a scan rate range of 0.1 to 10 mV s -1 . The relationship between peak current density and scan rate revealed that potassium storage in NGHC is dominated by diffusion-controlled processes and shows defect adsorption in the sloping highpotential region.…”
Section: K-ion Storage Mechanismmentioning
confidence: 99%
“…The combination of versatile properties makes hard carbons ideal anode materials not only in LIBs but also in their promising applications such as SIBs and PIBs. [ 89–95 ] Previous reports have proved some significant differences in the intercalated behaviors of Li + , Na + , and K + ions in graphite. To better understand the mechanism of Li + ions storage in hard carbons, the electrochemical behaviors of Na + and K + ions in hard carbons have been collectively compared.…”
Section: Li+ Ions Storage Mechanisms In Hard Carbonsmentioning
confidence: 99%
“…Compared to the recently published studies based on nitrogen‐doped carbon anodes, our NC‐800 harvests an advanced rate performance especially at high current densities (Figure 3B). 24,33,36,40,47–51 …”
Section: Resultsmentioning
confidence: 99%