n-doped graphene-decorated nico alloy coupled with

Three‐Dimensional N‐Doped Graphene Hydrogel/NiCo

Nabilah Al-Ansi, Abdulwahab Salah, Salah Adlat, Bin Qi, A highly sensitive nonenzymatic H2O2 sensor based on 3D N-doped porous graphene aerogel decorated with AuPd alloy nanoparticles, Synthetic Metals, 10.1016/j.synthmet.2020.116380, 264, (116380),

N

Herein, we prepare the N-doped graphene-decorated NiCo alloy coupled with mesoporous NiCoMoO nano-sheet grown on 3D nickel foam (NiCoC-NiCoMoO/NF) for water splitting. NiCoC-NiCoMoO/NF exhibits outstanding activity with low overpotentials for hydrogen and oxygen evolution reaction (HER: 39/266 mV; OER: 260/390 mV) at 10 and 1000 mA cm−2.

Frontiers

Development of cost-effective electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is key to enabling advanced electrochemical energy conversion technologies. Here, a novel nitrogen-doped metal-carbon hybrid (NiCo/CN) with a unique 3D hierarchical structure, consisting of uniformly distributed bimetallic nanoparticles encapsulated by partially graphitized N

Molecules

Other significant work is reported by Han and col. that prepared graphene (G), nitrogen-doped graphene (NG), edge-rich graphene (EG), and defective graphene (DG). DG was synthesized through the elimination of the nitrogen atoms from an NG structure, which caused many topological defects that offered abundant catalytically active sites, high electronic conductivity, and strong CO 2 adsorption

Synergistic enhancement of nitrogen and sulfur co

The U.S. Department of Energy's Office of Scientific and Technical Information article{osti_1183281, title = {Synergistic enhancement of nitrogen and sulfur co-doped graphene with carbon nanospheres insertion for electrocatalytic oxygen reduction reaction}, author = {Wu, Min and Xin, Huolin L. and Wang, Jie and Wu, Zexing and Wang, Deli}, abstractNote = {A nitrogen and sulfur co-doped

Coupled with CoNi Doped Graphene for Strong Wideband

Coupled with CoNi Doped Graphene for Strong Wideband Microwave Absorption Xueqing Xu a, Feitian Ran a, Zhimin Fan a, Y. Huang, C. Chen, X. Liu, H. Liu, The 3D CoNi Alloy Particles Embedded in N-Doped Porous Carbon Foams for High-Performance2019

Engineering efficient bifunctional electrocatalysts for

Here, a new class of bifunctional electrocatalyst is reported, consisting of ultralarge sized nitrogen doped graphene tubes (N–GTs) (500 nm) decorated with FeCoNi alloy particles. These tubes are prepared from an inexpensive precursor, dicyandiamide, via a more template–free graphitization process.

An easy synthesis of Ni

Figure 9 (a) Zinc-air battery test device schematic. (b) Polarization and power density curves of the Zn-air battery using the prepared catalysts and Pt/C as cathode catalysts in 0.5 mol L −1 KNO 3. (c) Discharge curves of the Ni 2 Co 3 ht-CN battery and Pt/C battery in 0.5 mol L

N

Herein, we prepare the N-doped graphene-decorated NiCo alloy coupled with mesoporous NiCoMoO nano-sheet grown on 3D nickel foam (NiCoC-NiCoMoO/NF) for water splitting. NiCoC-NiCoMoO/NF exhibits outstanding activity with low overpotentials for hydrogen and oxygen evolution reaction (HER: 39/266 mV; OER: 260/390 mV) at 10 and 1000 mA cm −2 .

Fluorine

Fluorine-doped graphene (FG) has rarely been used as ORR catalyst because of the difficulty in preparation. Herein, we report FG sheets prepared by a thermal pyrolysis graphene oxide (GO) process in the presence of zinc fluoride (ZnF 2 ) as an efficient electrocatalyst for ORR in the alkaline medium.

3D Network nanostructured NiCoP nanosheets supported

Cite this article: Miaomiao Tong,Lei Wang,Peng Yu, et al. 3D Network nanostructured NiCoP nanosheets supported on N-doped carbon coated Ni foam as a highly active bifunctional electrocatalyst for hydrogen and oxygen evolution reactions[J]. Front. Chem. Sci.

3D

[86] CHANG Y Z,HAN G Y,YUAN J P,et al.Using hydroxylamine as a reducer to prepare N-doped graphene hydrogels used in high-performance energy storage[J].Journal of Power Sources,2013,238:492-500. [87] YU X Z,LU B A,XU Z.Super long-life supercapacitors based on the construction of nanohoneycomb-like strongly coupled CoMoO 4 -3D graphene hybrid

Applications of Ceramic/Graphene Composites and

Rahmani et al. [] fabricated a carbon–ceramic (CCE) substrate based on methyltrimethoxysilane and graphite that was subsequently coated with N-doped GO, and electrodeposited with NiCO alloy np on top. The CCE/N-GO/NiCo electrode displayed 87% and 47.

Strategic Preparation of Efficient and Durable NiCo Alloy

Strategic Preparation of Efficient and Durable NiCo Alloy Supported N‐Doped Porous Graphene as an Oxygen Evolution Electrocatalyst: A Theoretical and Experimental Investigation Santosh K. Singh Physical and Materials Chemistry Division, National Chemical Laboratory (CSIR), Dr. Homi Bhabha Road, Pashan, Pune, 411008 India

Applications of Ceramic/Graphene Composites and

2021/4/20Research activity on ceramic/graphene composites and hybrids has increased dramatically in the last decade. In this review, we provide an overview of recent contributions involving ceramics, graphene, and graphene-related materials (GRM, i.e., graphene oxide, reduced graphene oxide, and graphene

Carbon supported PdNi alloy nanoparticles on SiO2

Ni(0) nanoparticles (NPs) are unstable and tend to aggregate in water, which poses a considerable challenge in their catalytic application. To overcome these drawbacks, integrated Ni-noble metal bimetallic NPs with a hollow-structured support are expected to enhance performances in heterogeneous catalysis. Herein, we present a simple approach for facile fabrication of Ni NPs embedded in a

3D

[86] CHANG Y Z,HAN G Y,YUAN J P,et al.Using hydroxylamine as a reducer to prepare N-doped graphene hydrogels used in high-performance energy storage[J].Journal of Power Sources,2013,238:492-500. [87] YU X Z,LU B A,XU Z.Super long-life supercapacitors based on the construction of nanohoneycomb-like strongly coupled CoMoO 4 -3D graphene hybrid

BJNANO

NiCo 2 O 4 was anchored on the N-doped graphene prepared by a hydrothermal method, used for LIB applications, where the N-doping further improved the ORR performance in the LiO 2 batteries . Wu et al. prepared needle-like NiCo 2 O 4 nanostructures on a 3D graphene foam with in situ deposition by a facile hydrothermal method which is used as an enzyme mimic for glucose and calcium detection [302] .

BJNANO

NiCo 2 O 4 was anchored on the N-doped graphene prepared by a hydrothermal method, used for LIB applications, where the N-doping further improved the ORR performance in the LiO 2 batteries . Wu et al. prepared needle-like NiCo 2 O 4 nanostructures on a 3D graphene foam with in situ deposition by a facile hydrothermal method which is used as an enzyme mimic for glucose and calcium detection [302] .

Frontiers

The HGR values for NiCo-1, NiCo-2, and NiCo-3 are 0.40, 0.35, and 0.20 L hydrogen g −1 min −1, respectively, which are significantly lower than the corresponding values for the film samples. When NiCo catalysts are presented as powder, NiCo tends to aggregate together under magnetic attraction to each other, which lowers the numbers of active catalytic sites.

Cubic imidazolate frameworks

Herein, we synthesized CoFe alloy nanoparticle-embedded N-doped graphitic carbon (CoFe/NC) nanostructures as ORR electrocatalysts. The ZIF-67 (zeolitic imidazolate framework, ZIF) nanocubes were first synthesized, followed by an introduction of Fesup2+/sup ions to form CoFe-ZIF precursors italicvia/italic a simple ion-exchange route.

NiCo Alloy/Carbon Nanorods Decorated with Carbon

NiCo Alloy/Carbon Nanorods Decorated with Carbon Nanotubes for Microwave Absorption Lei Wang * Lei Wang Insight of S, N co-doped graphene aerogel (double reduction)/cobalt (Ⅱ)-substituted α-Keggin-type polyoxometalate nanocomposites with 2020,

Applications of Ceramic/Graphene Composites and

Rahmani et al. [] fabricated a carbon–ceramic (CCE) substrate based on methyltrimethoxysilane and graphite that was subsequently coated with N-doped GO, and electrodeposited with NiCO alloy np on top. The CCE/N-GO/NiCo electrode displayed 87% and 47.

Nanomaterials

Consequently, SCs with enhanced characteristics can be fabricated by employing nitrogen-doped (N-doped) graphene nanosheets and graphene porous nanostructures [40,41,42]. Moreover, due to the larger size of sulfur than that of carbon, the polarization of electron pairs via codoping of graphene with S and N enhances both the electrochemical and electrical properties of graphene-based SCs [ 43 ].

Fluorine

Fluorine-doped graphene (FG) has rarely been used as ORR catalyst because of the difficulty in preparation. Herein, we report FG sheets prepared by a thermal pyrolysis graphene oxide (GO) process in the presence of zinc fluoride (ZnF 2 ) as an efficient electrocatalyst for ORR in the alkaline medium.

A General and Programmable Synthesis of Graphene

2020/4/1Introduction Three-dimensional (3D)-graphene networks are intriguing hosts for functional nanostructures, particularly, in energy-related application fields. 1 – 4 The large surface area of 3D graphene network profits the dispersion of the functional nanostructures, resulting in a substantial increase of active sites. 5, 6 Meanwhile, the conductive and interconnected skeletons, as well as

N atoms are doped in the RHPC structure in the form of pyridinic N (398.5 0.1 eV), pyridonic N (399.3 0.1 eV), and graphitic N groups (401.1 0.1 eV) and N-oxide (401.8 0.1 eV). Compared with a commercial Pt/C catalyst, the N-RHPC as an oxygen reduction electrocatalyst has a similar electrocatalytic activity, and better stability and methanol toxicity resistance.

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