Student or educator? Sign up with your school email and get 6 months of Pro free.
CoChat
Sign Up
Cited by 407

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Synthesis and characterization of nitrogen-doped graphene hydrogels by hydrothermal route with urea as reducing-doping agents

Guo, Hui-Lin, Su, Peng, Kang, Xiaofeng, Ning, Sheng-Ke·2013·J. Mater. Chem. A
DOI 10.1039/c2ta00887d
Open this paper in CoChat — free account

Abstract

Nitrogen-doped graphene hydrogels (NGHs) were synthesized through a one-pot hydrothermal route with graphene oxide (GO) as raw material and urea as reducing-doping agents. The morphology, structure, and components of the NGHs were characterized by scanning electron microscopy, Raman spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, methylene blue adsorption, thermogravimetric analysis and electrical conductivity measurements. The results demonstrated that nitrogen was doped into the graphene plane at the same time as the GO sheets were reduced, and the nitrogen content incorporated into the graphene lattice was in the range of 3.95 to 6.61 at.% with pyrrolic N as the main component. The NGHs contained about 97.6 wt% water and have a large specific surface area (SSA) of >1300 m2 g−1 in the wet state. In addition, the electrochemical performance of the NGHs was investigated. The sample NGHs-4 with a nitrogen content of 5.86 at.% and SSA of 1521 ± 60 m2 g−1 in the wet state showed excellent capacitive behavior (308 F g−1 at 3 A g−1) and superior cycling stability (92% retention after 1200 cycles) in 6 mol L−1 KOH. The experimental results indicated that not only the N-content but also the N-type have very significant impact on the capacitive behavior. Furthermore, NGHs strongly influenced the electrochemical properties because of their high SSAs and mesoporous structure.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1039/c2ta00887d

Cites

1 of 1 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 1 references

Research works printed but not linked: 35

  1. Gilje, 2007, Nano Lett., 7, 3394, 10.1021/nl0717715 · DOI · Paper page
  2. Wang, 2009, Electrochem. Commun., 11, 889, 10.1016/j.elecom.2009.02.013 · DOI · Paper page
  3. Wang, 2010, ACS Nano, 4, 1790, 10.1021/nn100315s · DOI · Paper page
  4. Fan, 2011, J. Phys. Chem. C, 115, 10694, 10.1021/jp2008804 · DOI · Paper page
  5. Wang, 2009, Carbon, 47, 2049, 10.1016/j.carbon.2009.03.053 · DOI · Paper page
  6. Yoo, 2011, Nano Lett., 11, 1423, 10.1021/nl200225j · DOI · Paper page
  7. Yang, 2011, Adv. Mater., 23, 2833, 10.1002/adma.201100261 · DOI · Paper page
  8. Lee, 2009, Small, 5, 1769, 10.1002/smll.200801938 · doi:10.1002/smll.200801938
  9. Usachov, 2011, Nano Lett., 11, 5401, 10.1021/nl2031037 · DOI · Paper page
  10. Jeong, 2011, Nano Lett., 11, 2472, 10.1021/nl2009058 · DOI · Paper page
  11. Jin, 2011, ACS Nano, 5, 4112, 10.1021/nn200766e · DOI · Paper page
  12. Qu, 2010, ACS Nano, 4, 1321, 10.1021/nn901850u · DOI · Paper page
  13. Wang, 2009, Science, 324, 768, 10.1126/science.1170335 · DOI · Paper page
  14. Wu, 2011, ACS Nano, 5, 5463, 10.1021/nn2006249 · DOI · Paper page
  15. Sheng, 2011, ACS Nano, 5, 4350, 10.1021/nn103584t · DOI · Paper page
  16. Li, 2009, J. Am. Chem. Soc., 131, 15939, 10.1021/ja907098f · DOI · Paper page
  17. Long, 2010, Langmuir, 26, 16096, 10.1021/la102425a · DOI · Paper page
  18. Jiang, 2012, Appl. Surf. Sci., 258, 3438, 10.1016/j.apsusc.2011.11.091 · DOI · Paper page
  19. Sun, 2012, RSC Adv., 2, 4498, 10.1039/c2ra01367c · DOI · Paper page
  20. Chen, 2012, Nano Energy, 10.1016/j.nanoen.2012.09.003 · DOI · Paper page
  21. Lee, 2012, Electrochim. Acta, 85, 459, 10.1016/j.electacta.2012.08.070 · DOI
  22. Su, 2012, Acta Phys.-Chim. Sin., 28, 2745, 10.3866/PKU.WHXB201208221 · doi:10.3866/pku.whxb201208221
  23. Kovtyukhova, 1999, Chem. Mater., 11, 771, 10.1021/cm981085u · DOI · Paper page
  24. Hummers, 1958, J. Am. Chem. Soc., 80, 1339, 10.1021/ja01539a017 · DOI · Paper page
  25. Chae, 2004, Nature, 427, 523, 10.1038/nature02311 · DOI · Paper page
  26. McAllister, 2007, Chem. Mater., 19, 4396, 10.1021/cm0630800 · DOI · Paper page
  27. Deng, 2011, Chem. Mater., 23, 1188, 10.1021/cm102666r · DOI · Paper page
  28. Kang, 2004, Phys. Rev. B: Condens. Matter Mater. Phys., 70, 233411, 10.1103/PhysRevB.70.233411 · DOI
  29. Dresselhaus, 2005, Phys. Rep., 409, 47, 10.1016/j.physrep.2004.10.006 · DOI · Paper page
  30. Valles, 2012, Carbon, 50, 835, 10.1016/j.carbon.2011.09.042 · DOI
  31. Hulicova-Jurcakova, 2009, Adv. Funct. Mater., 19, 438, 10.1002/adfm.200801236 · DOI · Paper page
  32. Kotz, 2000, Electrochim. Acta, 45, 2483, 10.1016/S0013-4686(00)00354-6 · DOI · Paper page
  33. Kwon, 2009, Langmuir, 25, 11961, 10.1021/la901318d · DOI
  34. Seredych, 2008, Carbon, 46, 1475, 10.1016/j.carbon.2008.06.027 · DOI · Paper page
  35. Yang, 2011, Angew. Chem., Int. Ed., 50, 7325, 10.1002/anie.201100723 · DOI · Paper page

Cited by

See all 407

Metadata

Authors
Guo, H.-L., Su, P., Kang, X., & Ning, S.-K.
Venue
J. Mater. Chem. A
Publisher
Royal Society of Chemistry (RSC)
Published
2013
Volume
1
Issue
6
Pages
2248-2255
ISSN
  • 2050-7488 (ISSN-L)
  • 2050-7496
DOI
10.1039/c2ta00887d
OpenAlex
W2110692366
Cited by
407
References
1
FWCI
9.35
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Synthesis and characterization of nitrogen-doped graphene hydrogels by hydrothermal route with urea as reducing-doping agents. https://app.cochat.ai/papers/10.1039/c2ta00887d
The paper
Guo, H.-L., Su, P., Kang, X., & Ning, S.-K. (2013). Synthesis and characterization of nitrogen-doped graphene hydrogels by hydrothermal route with urea as reducing-doping agents. J. Mater. Chem. A. https://doi.org/10.1039/c2ta00887d

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.