Three-dimensional porous carbon nanofiber networks decorated with cobalt-based nanoparticles: A robust electrocatalyst for efficient water oxidation

Cao, Guo Lin; Yan, Yi Ming; Liu, Ting; Rooney, David; Guo, Yao; Sun, Ke

doi:10.1016/j.carbon.2015.07.063

Cited by 29 publications

(20 citation statements)

References 43 publications

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“…The N 1s spectrum of Co‐Salen‐CNT shows two peaks centered at 399.5 and 402 eV (Figure b), which can be ascribed to two types of nitrogen atoms in the tethered catalyst, the N−C in amino groups and the C=N in salen ligands. The Co 2p binding energies of Co‐Salen‐CNT are presented at ∼781.5 eV and ∼796.2 eV, which is assigned to Co 2+ . For Cu‐Salen‐CNT, Cu 2p3/2 peak appears at ∼934.4 eV and Cu2p1/2 peak appears at ∼954.3 eV, along with two shake‐up satellite peaks at ∼943.9 and ∼963.2 eV, respectively, indicating a typical characteristic of Cu 2+ oxidation state .…”

Section: Methodsmentioning

confidence: 93%

Co(II) or Cu(II) Schiff Base Complex Immobilized onto Carbon Nanotubes as a Synergistic Catalyst for the Oxygen Reduction Reaction

Bai

Guan

2018

ChemistrySelect

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Heterogenization of molecular catalysts not only showed excellent activity and selectivity in many catalytic reactions, but also provided definite active sites feasible to explore the reaction mechanism. Herein, we report a heterogenization of metal Schiff‐base complex immobilized on multiwalled carbon nanotubes (MWCNTs) as a high‐performance catalyst for the oxygen reduction reaction (ORR). Although MWCNTs alone have little catalytic activity, the heterogenization hybrid exhibits an enhanced ORR activity in alkaline solutions. The enhanced catalytic activity arises from synergetic effects between metal Schiff‐base complexes and MWCNTs.

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Section: Methodsmentioning

confidence: 93%

Co(II) or Cu(II) Schiff Base Complex Immobilized onto Carbon Nanotubes as a Synergistic Catalyst for the Oxygen Reduction Reaction

Bai

Guan

2018

ChemistrySelect

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“…Furthermore, one compelling advantage of this material is the green synthesis without adding any poisonous agents. Later, some researchers started to prepare many CNF nanocomposites derived from BC, including CNF@Co aerogels, [102] CNF/SnO 2 aerogels, [103] MoS 2 nanoparticles/CNF foam, [104] MoS 2 nanoleaves/CNFs, [105] porous CNFs, [106] CNFs/Pt nanoparticles, [107] nickel-cobalt layered double hydroxide (Ni-Co LDH) nanosheets/nitrogen-doped CNFs, [108] and CNFs/amorphous Fe 2 O 3 . [109] Raw cotton, a typical natural resource, is also used as raw material for fabricating CNF aerogels.…”

Section: Thermal Transformation Approachmentioning

confidence: 99%

“…3D nitrogen-doped porous CNFs can be prepared using our CNF gel without adding any activation as the electrodes of supercapacitors, which exhibit hierarchical structure with reasonable distribution of mesopores and micropores. Compared to the carbon materials with single-sized pores, the [57][58][59][60][61][62][63][64]72] High surface areas; low volume density Thermal transformation approach CNF gels derived from thermal transformations of BC [16,70,85,86,[102][103][104][105][106][107][108][109][110][111][112][113] CVD technique 3D CNF/graphene networks [116] 3D CNF films Template-assisted approach Carbon cloth, carbon papers and carbon fiber felt-based 3D CNF films [128][129][130][131][132][133][134][135][136][137][139][140][141][142][143][144][145][146][147]…”

Section: Supercapacitorsmentioning

confidence: 99%

Macroscopic‐Scale Three‐Dimensional Carbon Nanofiber Architectures for Electrochemical Energy Storage Devices

Chen

Feng

Liang

et al. 2017

Advanced Energy Materials

162

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Therefore, it is necessary to develop highperformance energy storage devices for facilitating the effective utilization of intermittent renewable energy sources. [7][8][9] Among varieties of electrochemical energy storage devices, supercapacitors (known as electrochemical capacitors) [10,11] and some rechargeable batteries (lithium-ion batteries (LIBs), lithiumsulfur (Li-S) batteries, and metal-O 2 batteries) [12][13][14][15] are at the frontier, because they can transport high power and store high energy. Nowadays, they play an indispensable role in our daily life by powering numerous portable electronic devices (e.g., cell phones and laptops), hybrid electric vehicles, and large-scale electrical grids. [16][17][18][19] It is well accepted that the performance of energy storage devices mainly depended on their electrode materials. [20,21] Owing to the advantages of large surface area, light weight, good electrical conductivity, and high thermal/ chemical stability, carbon materials have been considered as the most important electrode materials of supercapacitors and rechargeable batteries [8,20,21] Hence, various nanostructured carbons, such as carbon/graphene quantum dots, [22,23] carbon nanofiber (CNFs), [16,24] carbon nanotubes (CNTs), [13,25] graphene [26][27][28][29][30][31][32] carbon nanosheets, [33,34] 3D carbon nanostructures, [35][36][37] and porous carbon, [38,39] have gained great attention. Among these materials, 3D carbon nanomaterials have some advantages. The interlinked architecture not only shortens transport distances for ions in the well-interconnected wall structure, but also provides a continuous pathway endowing for the fast electron transport. [40] Moreover, the structural interconnectivities guarantee higher electrical conductivity and better mechanical stability. [36,41] Thereby, the design and fabrication of various 3D carbonbased nanostructures, including carbon nanotube networks, graphene gels, graphene foams, and 3D CNFs, have been intensively investigated.Over the past few years, there are many reviews summarizing the progress of fabricating 3D carbon-based nanomaterials. For example, Schneider et al. overviewed the recent advance in the synthesis of 3D arranged carbon nanotube architectures. [42] Li et al. reviewed the carbon-based 3D nanostructures for supercapacitors. [36] Cao and Gui et al. comprehensively reviewed the recent progress in synthesis, properties, and energy applications of CNT sponges, aerogels, and hierarchical composites. [43] The development of high-performance electrochemical energy storage devices is critical for addressing energy crises and environmental pollution.

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“…More importantly, the electrode presented superior performance at high current density (500 mA cm −2 ) with the overpotential of 251.0 mV for 48 h. The prominent OER activity of the 3D NiFe/EG material opens up a new way to large-scale practical applications for energy conversion. Furthermore, cobalt-based nanoparticles decorated on 3D porous carbon nanofiber networks (CNF@Co) were prepared [72]. The interconnected porous 3D networks provided abundant channels and interfaces, leading to efficient mass transfer and oxygen evolution.…”

Section: Oxygen Evolution Reactionmentioning

confidence: 99%

Three dimensional carbon substrate materials for electrolysis of water

et al. 2018

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Water splitting is an important approach for energy conversion to obtain hydrogen and oxygen. Apart from solar water splitting, electrochemical method plays a key role in the booming field, and it is urgent to develop novel and efficient catalysts to accelerate water splitting reaction. Recently, newly emerging self-supported materials, especially three dimensional (3D) carbon substrate electrochemical catalysts, have attracted great attention benefiting from their fantastic catalytic performances, such as large surface area, enhanced conductivity, tunable porosity, and so on. This review summarizes the outstanding materials used for hydrogen evolution reaction and oxygen evolution reaction. And catalysts that acted as both anode and cathode in two-electrode systems for overall water splitting are introduced systematically. The opportunities and challenges of 3D carbon substrate materials for electrochemical water splitting are proposed.

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Three-dimensional porous carbon nanofiber networks decorated with cobalt-based nanoparticles: A robust electrocatalyst for efficient water oxidation

Cited by 29 publications

References 43 publications

Co(II) or Cu(II) Schiff Base Complex Immobilized onto Carbon Nanotubes as a Synergistic Catalyst for the Oxygen Reduction Reaction

Co(II) or Cu(II) Schiff Base Complex Immobilized onto Carbon Nanotubes as a Synergistic Catalyst for the Oxygen Reduction Reaction

Macroscopic‐Scale Three‐Dimensional Carbon Nanofiber Architectures for Electrochemical Energy Storage Devices

Three dimensional carbon substrate materials for electrolysis of water

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