Controllable nitrogen-doping of nanoporous carbons enabled by coordination frameworks

Zhang, Wei; Bu, Saiyu; Yuan, Qinghong; Xu, Qiang; Hu, Ming

doi:10.1039/c8ta09817d

Cited by 47 publications

(28 citation statements)

References 77 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[ 19,21 ] In addition, due to the different polymerization processes, the nitrogen configuration was selectively tuned by varying the mass ratio of the nitrogen precursors. Compared with the conventional tuning method by controlling the annealing temperature, [ 38 ] our method provides a more controllable and effective approach for selectively modifying the nitrogen configuration on carbon materials with similar nanostructures. It is expected to serve as a decent material platform for studying the structure‐activity relation of N‐doped carbon electrocatalyst at atomic level.…”

Section: Resultsmentioning

confidence: 99%

Tailoring Selectivity of Electrochemical Hydrogen Peroxide Generation by Tunable Pyrrolic‐Nitrogen‐Carbon

Tang

Zheng

et al. 2020

Advanced Energy Materials

320

253

View full text Add to dashboard Cite

The electrochemical reduction of O2 via a two‐electron reaction pathway to H2O2 provides a possibility for replacing the current anthraquinone process, enabling sustainable and decentralized H2O2 production. Here, a nitrogen‐rich few‐layered graphene (N‐FLG) with a tunable nitrogen configuration is developed for electrochemical H2O2 generation. A positive correlation between the content of pyrrolic‐N and the H2O2 selectivity is experimentally observed. The critical role of pyrrolic‐N is elucidated by the variable intermediate adsorption profiles as well as the dependent negative shifts of the pyrrolic‐N peak on X‐ray adsorption near edge structure spectra. By virtue of the optimized N doping configuration and the unique porous structure, the as‐fabricated N‐FLG electrocatalyst exhibits high selectivity toward electrochemical H2O2 synthesis as well as superior long‐term stability. To achieve high‐value products on both the anode and cathode with optimized energy efficiency, a practical device coupling electrochemical H2O2 generation and furfural oxidation is assembled, simultaneously enabling a high yield rate of H2O2 at the cathode (9.66 mol h−1 gcat−1) and 2‐furoic acid at the anode (2.076 mol m−2 h−1) under a small cell voltage of 1.8 V.

show abstract

Section: Resultsmentioning

confidence: 99%

Tailoring Selectivity of Electrochemical Hydrogen Peroxide Generation by Tunable Pyrrolic‐Nitrogen‐Carbon

Tang

Zheng

et al. 2020

Advanced Energy Materials

320

253

View full text Add to dashboard Cite

show abstract

“…The peaks at 510 and 920 cm À1 correspond to silicon, and a peak at 297 cm À1 is related to cobalt [23]. Two board peaks located at about 1350 and 1591 cm À1 are assigned to the D and G band of the CNTs with I D /I G intensity of 0.9956, indicating the good graphitization degree and high electronic conductivity of the sample [37]. The surface compositions of Si@N-doped CNTs were confirmed by XPS, showing that the sample is composed of Si, C, N, O, and Co (Fig.…”

Section: Resultsmentioning

confidence: 99%

Thermal pyrolysis of Si@ZIF-67 into Si@N-doped CNTs towards highly stable lithium storage

Jin

Yang

et al. 2020

Science Bulletin

View full text Add to dashboard Cite

“…Optimizing the lattice properties of materials is common way for designing energy storage materials, such as doping [145] and vacancy. [146] Usually, lattice modification can achieve high electron conductivity and/or ionic diffusion coefficient and/or low average particle size of active materials.…”

Section: Lattice Optimizationmentioning

confidence: 99%

Optimization Design and Application of Niobium‐Based Materials in Electrochemical Energy Storage

Lian

Yang

Wang

et al. 2020

Adv Energy and Sustain Res

View full text Add to dashboard Cite

In various energy storage devices, the development and research of electrode materials has always been a key factor. Nb‐based materials are one choice of energy storage materials because of the good ion‐diffusion channels and high theoretical capacity. More importantly, their advantages, such as safe potential range, high structural stability, and highly reversible redox reaction with small strain, are conducive to efficient, safe, and stable energy storage development. Based on aforementioned superiority, much of the research is to further optimize performance of Nb‐based materials by unique nano‐morphology design, lattice regulation, and functional additives composition, showing good electrochemical performance in many kinds of devices. This review mainly introduces the classification of Nb‐based materials used for energy storage, their application in different battery systems, and common optimization methods. Accordingly, the deficiencies and prospects of Nb‐based materials are also discussed in detail.

show abstract

Controllable nitrogen-doping of nanoporous carbons enabled by coordination frameworks

Abstract: Computation plays a significant role in guiding nitrogen doping into nanoporous carbons.

Cited by 47 publications

References 77 publications

Tailoring Selectivity of Electrochemical Hydrogen Peroxide Generation by Tunable Pyrrolic‐Nitrogen‐Carbon

Tailoring Selectivity of Electrochemical Hydrogen Peroxide Generation by Tunable Pyrrolic‐Nitrogen‐Carbon

Thermal pyrolysis of Si@ZIF-67 into Si@N-doped CNTs towards highly stable lithium storage

Optimization Design and Application of Niobium‐Based Materials in Electrochemical Energy Storage

Contact Info

Product

Resources

About