---

Solar-driven steam generation on nitrogen-doped …

2020-1-7 · Preparation of nitrogen-doped reduced graphene (NRGO) and reduced graphene oxide (RGO) GO (81 mg) and urea (24.3 g) were added to 70 ml of deionized water, and then sonicated for 3 h. The solution was transferred into an autoclave and kept at 180 °C for 10 h.

---

Solar-driven steam generation on nitrogen-doped …

2020-1-7 · Preparation of nitrogen-doped reduced graphene (NRGO) and reduced graphene oxide (RGO) GO (81 mg) and urea (24.3 g) were added to 70 ml of deionized water, and then sonicated for 3 h. The solution was transferred into an autoclave and kept at 180 °C for 10 h.

---

Tuning the nanostructure of nitrogen-doped …

Alternatives include reduced forms such as reduced graphene oxide to improve the stability and size-based selectivity, which have resulted in a narrow nanochannel that restricts water permeability. Herein, we propose the use of a novel nitrogen-doped graphene (NG) membrane to solve a trade-off between permeability and selectivity, investigating ...

---

Effect of Nitrogen-Doped Graphene Oxide on the …

Nitrogen-doped graphene oxide (GO), namely, NG, was prepared by o-phenylenediamine (OPD) grafting onto GO. The structure and morphology of NG were characterized by FITR, XRD, SEM, EDS, Raman spectroscopy, and TGA. OPD was linked to the GO surface by covalent bonds, and the absorption peak of the C=N bond in the phenazine structure was identified in the FITR spectra.

---

Effect of Nitrogen-Doped Graphene Oxide on the …

Nitrogen-doped graphene oxide (GO), namely, NG, was prepared by o-phenylenediamine (OPD) grafting onto GO. The structure and morphology of NG were characterized by FITR, XRD, SEM, EDS, Raman spectroscopy, and TGA. OPD was linked to the GO surface by covalent bonds, and the absorption peak of the C=N bond in the phenazine structure was identified in the FITR spectra.

---

Synthesis of Nitrogen-Doped Graphene via Thermal …

Nitrogen-doped graphene was successfully synthesised from graphene oxide (GO) and 2-methylimidazole composite via thermal treatment under argon flow at 700°C within 1h. This synthesised N-doped graphene exhibits homogeneous nitrogen doping with concentration of ~5% in three different nitrogen configuration namelypyridinic N, pyrrolic N and graphitic N.

---

Nitrogen Doped Graphene as Potential Material for …

The nitrogen doped graphene was synthesized by hydrothermal route utilizing 2-Chloroethylamine hydrochloride as nitrogen precursor in the presence of graphene oxide (GO). Nitrogen-doped graphene material is developed for its application in hydrogen storage at room temperature. Nitrogen doped graphene layered material shows ~1.5 wt% hydrogen storage capacity achieved at room temperature …

---

Visualizing Individual Nitrogen Dopants in Monolayer …

In monolayer graphene, substitutional doping during growth can be used to alter its electronic properties. We used scanning tunneling microscopy, Raman spectroscopy, x-ray spectroscopy, and first principles calculations to characterize individual nitrogen dopants in monolayer graphene grown on a copper substrate. Individual nitrogen atoms were incorporated as graphitic dopants, and a fraction ...

---

Visualizing Individual Nitrogen Dopants in Monolayer …

In monolayer graphene, substitutional doping during growth can be used to alter its electronic properties. We used scanning tunneling microscopy, Raman spectroscopy, x-ray spectroscopy, and first principles calculations to characterize individual nitrogen dopants in monolayer graphene grown on a copper substrate. Individual nitrogen atoms were incorporated as graphitic dopants, and a fraction ...

---

Visualizing Individual Nitrogen Dopants in Monolayer …

In monolayer graphene, substitutional doping during growth can be used to alter its electronic properties. We used scanning tunneling microscopy, Raman spectroscopy, x-ray spectroscopy, and first principles calculations to characterize individual nitrogen dopants in monolayer graphene grown on a copper substrate. Individual nitrogen atoms were incorporated as graphitic dopants, and a fraction ...

---

Catalyst-free synthesis of nitrogen-doped graphene …

The electronic and chemical properties of graphene can be modulated by chemical doping foreign atoms and functional moieties. The general approach to the synthesis of nitrogen-doped graphene (NG), such as chemical vapor deposition (CVD) performed in gas phases, requires transitional metal catalysts which could contaminate the resultant products and thus affect their properties.

---

High‐Surface‐Area Nitrogen‐Doped Reduced …

A two‐step method consisting of solid‐state microwave irradiation and heat treatment under NH 3 gas was used to prepare nitrogen‐doped reduced graphene oxide (N‐RGO) with a high specific surface area (1007 m 2 g −1), high electrical conductivity (1532 S m −1), and low oxygen content (1.5 wt %) for electrical double‐layer capacitor ...

---

Three-dimensional Nitrogen-Doped Reduced …

2020-12-10 · @article{osti_1361961, title = {Three-dimensional Nitrogen-Doped Reduced Graphene Oxide/Carbon Nanotube Composite Catalysts for Vanadium Flow Batteries}, author = {Fu, Shaofang and Zhu, Chengzhou and Song, Junhua and Engelhard, Mark H. and Du, Dan and Lin, Yuehe}, abstractNote = {The development of vanadium redox flow battery is limited by the sluggish kinetics of the reaction, …

---

Toxicity mechanism of graphene oxide and nitrogen …

2021-1-2 · In this work, we systematically studied the toxic effects of two typical graphene forms, graphene oxide (GO) and nitrogen-doped graphene quantum dots (N-GQDs), on red blood cells (RBCs) by testing their hemolytic activity, observing the morphological changes and detecting the ATP content of RBCs after being exposed to the two nanomaterials.

---

Controllable Synthesis of Nitrogen-doped Graphene …

Moreover, highly doped nitrogen could promote the cycling stability of carbon-based materials high voltage (up to 5.0 V) in the ionic liquid electrolyte. This may open a new avenue for the chemical doping of carbon-based materials and their applications in high-performance electrochemical devices.

---

Controllable Synthesis of Nitrogen-doped Graphene …

Moreover, highly doped nitrogen could promote the cycling stability of carbon-based materials high voltage (up to 5.0 V) in the ionic liquid electrolyte. This may open a new avenue for the chemical doping of carbon-based materials and their applications in high-performance electrochemical devices.

---

Controllable Synthesis of Nitrogen-doped Graphene …

Moreover, highly doped nitrogen could promote the cycling stability of carbon-based materials high voltage (up to 5.0 V) in the ionic liquid electrolyte. This may open a new avenue for the chemical doping of carbon-based materials and their applications in high-performance electrochemical devices.