The as-prepared N-doped graphene nanoplatelets (NGnPs) exhibited a nitrogen content as high as 11.4 at.%, making them attractive as efficient electrode materials in supercapacitors for energy storage and …
Electrochemically anodic fabrication of nitrogen-doped few layer graphene sheets (N-FLGS) was realized at a voltage of 10 V in an aqueous solution of 3 M glycine and ammonia (25-28%) utilizing graphite as …
Impressively, the highest areal capacitance of laser-induced nitrogen-doped graphene (LING) is 60.7 mF/cm 2, ... The next generation of energy storage technologies requires enhanced fabrication techniques such as the use of CO 2 infrared lasers to pattern This ...
Sun, L. et al. Nitrogen-doped graphene with high nitrogen level via a one-step hydrothermal reaction of graphene oxide with urea for superior capacitive energy storage. RSC Adv. 2, 4498–4506 ...
Novel structured graphene produced by an environmentally-friendly and high-yielding method together with excellent electrochemical energy storage performance is pursued. A one-pot, solvent- and catalyst-free flash Joule heating approach is developed for synthesizing nitrogen-doped graphene and so named as flash nitrogen-doped …
Also, doping graphene with nitrogen is an effective way to tailor its properties, thus making it potential candidate for energy storing devices. Herein, we have focussed on recent advancements made on various metal oxides like monometal oxides of manganese, nickel, iron, cobalt, and their binary, ternary oxides with nitrogen-doped …
Although various carbon nanomaterials including activated carbon, carbon nanotubes, and graphene have been successfully demonstrated for high-performance ultracapacitors, their capacitances need to be improved further for wider and more challenging applications. Herein, using nitrogen-doped graphene produced by a simple plasma process, we …
Mass production of graphene powders affording high quality and environmental benignancy serves as a prerequisite for the practical usage of graphene in multiple energy storage applications. Herein, we exploit a salt-templated CVD approach to harness the direct synthesis of nitrogen-doped graphene (NG) nanosheets and related …
The iron titanium nitride@nitrogen-doped graphene (Fe-TiN@NG) was prepared as a negative electrode to construct the ASCs cell. The obtained ASCs cell illustrated an energy density of 91.8 W h kg −1 at a power density of 281.4 W kg −1 and capacity retention of 94.6% over 10,000 cycles.
Here, for the first time, sandwich-like Ni 2 P nanoarray/nitrogen-doped graphene nanoarchitecture (Ni 2 P/NG/Ni 2 P) is designed as a novel battery anode for both sodium ion batteries (SIBs) and lithium ion batteries (LIBs).
Here, a hybrid material composed of sandwiched reduced graphene oxide (rGO) and N,S co-doped carbon quantum dots (N,S-CQDs) was prepared following a facile synthetic route. This metal-free composite has demonstrated their dual performance as an electrode material for supercapacitors and fuel cell catalysts.
The current approach paves the way for rational design of porous graphene-based electrodes, satisfying multifunctional requirements for high-energy storage applications. Freestanding carbon-based electrodes with …
Firstly, nitrogen-doped graphene (NGN) was synthesized using urea as a reducing as well as a doping agent. Subsequently, polyaniline (PAni) hydrogel has been grown on NGN nanosheets via insitu oxidative polymerization in the vicinity of carbon cloth and further utilized as an electrode for electrochemical measurements.
Nitrogen-doped nanoporous carbon/graphene networks (NPC/G) have been prepared by zeolitic imidazolate frameworks (ZIF-8) homogeneously encapsulated in graphene oxide (GO) networks, which were carbonized at high-temperature under a N2 atmosphere and washed to get rid of impurities. The obtained NPC/G composites are
Compared with other common methods, the laser one-step synthesis of nitrogen-doped hierarchically porous graphene is simpler and more efficient, and the as …
Nitrogen-doped graphene nanosheets (NGS) with the nitrogen level as high as 10.13 atom% were synthesized via a simple hydrothermal reaction of graphene oxide (GO) and urea. N-doping and reduction of GO were achieved simultaneously under …
Abstract. Nitrogen-doped (N-doped) graphene has attracted increasing attentions because of the significantly enhanced properties in physic, chemistry, biology and material science, as compared with those of pristine graphene. By date, N-doped graphene has opened up an exciting new field in the science and technology of two-dimensional …
2. Experimental Graphene oxides solution was prepared via dispersing 0.1 g graphene oxides (Tianjin Plannano Technology Co., Ltd) into 10 mL distilled water under vigorous ultrasonic treatment a typical preparation process, 2.0 g TiOSO 4 ·xH2O (chemical, Ti basis as TiO 2 ≥ 29 wt%) were added into the graphene oxides solution …
Nitrogen-doped graphene (N-graphene) was synthesized by chemical vapor deposition of methane in the presence of ammonia. The resultant N-graphene was demonstrated to act as a metal …
Porous nitrogen-doped graphene (PNG) has been prepared via simple thermal treatment of graphene oxide and urea, and the morphology and structure of the PNG have been characterized by using a range of electron microscopy, X-ray photoelectron spectroscopy, and other techniques. The electrochemical performances of the PNG have …
To date, heteroatom-doped graphene has been investigated as electrode materials in numerous applications, including SCs, LIBs, fuel cells, and field-effect transistors to name a few [ 28 – 30, 34 – 36 ]. In this review, we focus on the energy storage application of heteroatom-doped graphene and review the recent development in the …
This report presents a facile and effective method to synthesize freestanding nitrogen-doped reduced graphene oxide (rGO)/activated carbon (AC) composite papers …
Hybrid energy storage using nitrogen-doped graphene and layered-MXene (Ti 3 C 2) for stable high-rate supercapacitors Author links open overlay panel Damilola Momodu, Ali Shayesteh Zeraati, Fernanda Lopez Pablos, Uttandaraman Sundararaj, Edward PL ...
The two-dimensional layered material tin disulfide (SnS2) has a high theoretical capacity for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs) due to its combination of conversion and alloying reactions during the charge-storage process. However, the intrinsic poor conductivity and huge volume changes impede its practical applications. In this …
Nitrogen-doped graphene nanosheets (NGS) with the nitrogen level as high as 10.13 atom% were synthesized via a simple hydrothermal reaction of graphene oxide (GO) and urea. N-doping and reduction of GO were achieved simultaneously under the hydrothermal reaction. In the fabrication, the nitrogen-enriched ure
SEM and TEM images further revealed the influence of temperature on morphology. As shown in Figure 2, the Fe 3 O 4 nanoparticles and graphene layers could be observed. As the carbonization temperature played an important impact on the structure of the Fe 3 O 4 @G, the particles of Fe 3 O 4 @G-500 and Fe 3 O 4 @G-700 aggregated …
This review covers recent advances on production techniques, unique properties and novel applications of nitrogen-doped graphene oxide (NGO). The focal point is placed on the …
NiO/nitrogen-doped graphene (NiO/NG/NiO) hybrid nanoarrays were then obtained after calcination of the Ni-based precursor/GO/Ni-based precursor under argon atmosphere. Specifically, the GO nanosheets were reduced into 2D nitrogen-doped graphene (NG) nanosheets and the array of nanosheets are transformed into porous …
Nitrogen-doped graphene with high nitrogen level via a one-step hydrothermal reaction of graphene oxide with urea for superior capacitive energy storage. RSC Advances 2, 4498–4506 (2012).
Here a Bi 2 Se 3 nanosheets coated with nitrogen-doped carbon and wrapped with reduced graphene oxide (Bi 2 Se 3 @NC@rGO) is fabricated to boost K-ion storage. The Bi 2 Se 3 @NC@rGO composite with strong C–O–Bi bonding can provide superior electrode integrity and electrochemical kinetics by combining the synergistic …
Few-layer nitrogen-doped graphene (FLNG) have been successfully prepared by a simple bottom-up synthesis of technique using Dicyandiamide and Coal tar pitch as raw materials. The as-synthesized FLNG with the thickness of about 2–10 nm, high surface area (479.21 m 2 g −1) and high nitrogen content (14.68 at%) exhibits excellent …
Novel structured graphene produced by an environmentally-friendly and high-yielding method together with excellent electrochemical energy storage performance is pursued. A one-pot, solvent- and catalyst-free …
Vanadium carbide and nitrogen-doped graphene nanosheets based layered architecture for electrochemical evaluation of clioquinol detection and energy storage application Author links open overlay panel Ramadhass Keerthika Devi a, Muthusankar Ganesan b, Tse-Wei Chen c, Shen-Ming Chen a, Fahad M. Al-Hemaid d, …
The specific surface area and pore structure were studied by nitrogen adsorption isotherms as shown in Table 1 and Fig. 2 c and d Fig. 2 c, the N 2 adsorption-desorption isotherms of all the samples exhibited the distinct type IV isotherm characteristic shape with a type H2 hysteresis loop at P/P 0 = 0.4–0.8 which indicates the presence of …