CoP nanosheet assembly grown on carbon cloth: A highly efficient electrocatalyst for hydrogen generation

Yang, Yuting; Lu, Ang‐Yu; Zhu, Yihan; Hedhili, Mohamed N.; Min, Shixiong; Huang, Kuo‐Wei; Han, Yu; Li, Lain‐Jong

doi:10.1016/j.nanoen.2015.05.026

Cited by 363 publications

(225 citation statements)

References 64 publications

(66 reference statements)

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“…As shown in Figure 2J-N and Figure S9 (Supporting Information), STEM and the corresponding EDX elemental mappings unambiguously identify the well-defined nanosized CoP NPs embedded into microsized porous carbon sheets and, meanwhile, nitrogen and phosphorus elements are dispersed uniformly throughout the carbon sheets, revealing that the architecture ingeniously integrates the features of hybrid micro-and nanostructures. [32,33] The peaks at 129.7 eV for P 2p 3/2 and 778.5 eV for Co 2p 3/2 are related to the characteristic binding energies for P 2p and Co 2p contributions in CoP, respectively. These findings suggest that the intimate contact between the CoP NPs and nitrogen/phosphorus dual-doped porous carbon sheets could cause effective carrier communication in such novel hybrid composite.…”

Section: Doi: 101002/adma201802310mentioning

confidence: 99%

One‐Step Construction of N,P‐Codoped Porous Carbon Sheets/CoP Hybrids with Enhanced Lithium and Potassium Storage

et al. 2018

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Despite the desirable advancement in synthesizing transition-metal phosphides (TMPs)-based hybrid structures, most methods depend on foreign-template-based multistep procedures for tailoring the specific structure. Herein, a self-template and recrystallization-self-assembly strategy for the one-step synthesis of core-shell-like cobalt phosphide (CoP) nanoparticles embedded into nitrogen and phosphorus codoped porous carbon sheets (CoP⊂NPPCS), is first proposed. Relying on the unusual coordination ability of melamine with metal ions and the cooperative hydrogen bonding of melamine and phytic acid to form a 2D network, a self-synthesized single precursor can be attained. Importantly, this approach can be easily expanded to synthesize other TMPs⊂NPPCS. Due to the unique compositional and structural characteristics, these CoP⊂NPPCSs manifest outstanding electrochemical performances as anode materials for both lithium- and potassium-ion batteries. The unusual hybrid architecture, the high specific surface area, and porous features make the CoP⊂NPPCS attractive for other potential applications, such as supercapacitors and electrocatalysis.

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Section: Doi: 101002/adma201802310mentioning

confidence: 99%

One‐Step Construction of N,P‐Codoped Porous Carbon Sheets/CoP Hybrids with Enhanced Lithium and Potassium Storage

et al. 2018

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“…Figure 1(c) is the Co 2p spectrum. The peaks at binding energy of 781.3 eV and 797.2 eV can be assigned to the Co 2p 3/2 and Co 2p 1/2 peaks of oxidized Co 2+ [31], while the peaks at 778.9 eV and 794.5 eV are corresponding to the Co 2p 3/2 and Co 2p 1/2 peaks of reduced Co [32]. Besides, the peaks located at 786.0 eV and 803.1 eV are satellites peaks (denoted as "Sat.").…”

Section: Resultsmentioning

confidence: 96%

Liquid Phase Synthesis of CoP Nanoparticles with High Electrical Conductivity for Advanced Energy Storage

Zhang

Liu

et al. 2017

Journal of Nanomaterials

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Transition metal phosphide alloys possess the metalloid characteristics and superior electrical conductivity and are a kind of high electrical conductive pseudocapacitive materials. Herein, high electrical conductive cobalt phosphide alloys are fabricated through a liquid phase process and a nanoparticles structure with high surface area is obtained. The highest specific capacitance of 286 F g −1 is reached at a current density of 0.5 A g −1 . 63.4% of the specific capacitance is retained when the current density increased 16 times and 98.5% of the specific capacitance is maintained after 5000 cycles. The AC//CoP asymmetric supercapacitor also shows a high energy density (21.3 Wh kg −1 ) and excellent stability (97.8% of the specific capacitance is retained after 5000 cycles). The study provides a new strategy for the construction of high-performance energy storage materials by enhancing their intrinsic electrical conductivity.

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“…Ac ost-effective zinc-based MOF ([Zn(bpcda)(bdc)] n ) is prepared by using N,N'-bis(pyridin-4-ylmethylene)cyclohexane-1,4-diamine [N,N'-bis(pyridin-4-ylmethylene)cyclohexane-1,4-diamine] and benzenedicarboxylica cid (bdc) linkers. [7] For this challenging process, the development of suitable semiconductor materials with tunable band gaps is highly important. Notably,t his non-noblem etal-based MOF,w ithout requiring immobilizationonother supports or containing metal particles, produced ah ighest photocurrent density of 31 mAcm À2 at 0.9 V, with appreciable stability and negligible photocorrosion.…”

mentioning

confidence: 99%

Synthesis, Characterization, and Photoelectrochemical Catalytic Studies of a Water‐Stable Zinc‐Based Metal–Organic Framework

et al. 2018

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Metal-organic frameworks (MOFs) are class of porous materials that can be assembled in a modular manner by using different metal ions and organic linkers. Owing to their tunable structural properties, these materials are found to be useful for gas storage and separation technologies, as well as for catalytic applications. A cost-effective zinc-based MOF ([Zn(bpcda)(bdc)] ) is prepared by using N,N'-bis(pyridin-4-ylmethylene)cyclohexane-1,4-diamine [N,N'-bis(pyridin-4-ylmethylene)cyclohexane-1,4-diamine] and benzenedicarboxylic acid (bdc) linkers. This new material exhibits remarkable photoelectrochemical (PEC) catalytic activity in water splitting for the evolution of oxygen. Notably, this non-noble metal-based MOF, without requiring immobilization on other supports or containing metal particles, produced a highest photocurrent density of 31 μA cm at 0.9 V, with appreciable stability and negligible photocorrosion. Advantageously for the oxygen evolution process, no external reagents or sacrificial agents are required in the aqueous electrolyte solution.

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CoP nanosheet assembly grown on carbon cloth: A highly efficient electrocatalyst for hydrogen generation

Cited by 363 publications

References 64 publications

One‐Step Construction of N,P‐Codoped Porous Carbon Sheets/CoP Hybrids with Enhanced Lithium and Potassium Storage

One‐Step Construction of N,P‐Codoped Porous Carbon Sheets/CoP Hybrids with Enhanced Lithium and Potassium Storage

Liquid Phase Synthesis of CoP Nanoparticles with High Electrical Conductivity for Advanced Energy Storage

Synthesis, Characterization, and Photoelectrochemical Catalytic Studies of a Water‐Stable Zinc‐Based Metal–Organic Framework

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