2019
DOI: 10.1039/c8ta11568k
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Hierarchical nickel/phosphorus/nitrogen/carbon composites templated by one metal–organic framework as highly efficient supercapacitor electrode materials

Abstract: Novel carbon materials containing Ni, P, N and O were fabricated from the sacrificial MOF template, which exhibits high performance in electrochemical energy storage.

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Cited by 43 publications
(21 citation statements)
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“…It has been proposed that single-atom sites may catalyze some surface redox reactions or play other beneficial roles, which increase pseudocapacitance, leading to higher energy-storage density. [137][138][139][140] The following studies have explored this idea and demonstrate its feasibility to some extent.…”
Section: Supercapacitorsmentioning
confidence: 99%
See 1 more Smart Citation
“…It has been proposed that single-atom sites may catalyze some surface redox reactions or play other beneficial roles, which increase pseudocapacitance, leading to higher energy-storage density. [137][138][139][140] The following studies have explored this idea and demonstrate its feasibility to some extent.…”
Section: Supercapacitorsmentioning
confidence: 99%
“…The resulting hierarchical Ni/P/N/C composite was directly used as supercapacitor electrodes. 137 The composite contained Ni single atoms uniformly dispersed in microporous carbon substrates. The Ni/P/N/C composite pyrolyzed at 500 C has a high specific capacitance of 2879 F g À1 at the current density of 1 A g À1 (Figure 14A).…”
Section: Supercapacitorsmentioning
confidence: 99%
“…Therefore, the overall process of the charge and ion transfer covers a wide range of time scales, resulting in quasi-linear plots . At a high frequency (>1.0 kHz), the intercepts of real axis Re­( Z ) are related to the values of the sums of the intrinsic resistance for the whole electrode and the electrolyte and the contact resistance between them. , The resistance increased from 33 to 77 Ω during stretching from 0 to 50%, indicating that mechanical strain raises the resistance in the electrode and between the electrolyte and electrode.…”
Section: Resultsmentioning
confidence: 99%
“…A unique Ni-MOF with multi-component dopant sources, such as P, N, and O, was synthesized and used as a self-sacrificing template for the preparation of uncommon carbon materials (Ni/P/N/C-T, T = carbonization temperature in • C). The resulting Ni/P/N/C-T carbons showed uniformly incorporated aforementioned multi-component dopants and Ni element (Ni, P, N, and O) [103]. The Ni-MOF with a formula of [Ni 3 (H 2 O) (bpy) 3 (L1)] was prepared from the mixed ligand system of bpy and hexakis(4-formylphenoxy)cyclotriphosphazene (H 6 L1).…”
Section: Other Ni-mof-derived Carbonsmentioning
confidence: 99%