A novel Ni@Ni(OH)2 coaxial core-sheath nanowire membrane for electrochemical energy storage electrodes with high volumetric capacity and excellent rate capability

Xu, Shusheng; Li, Xin; Yang, Zhi; Wang, Tao; Xu, Minghan; Zhang, Liling; Yang, Chao; Hu, Nantao; He, Daping; Zhang, Yafei

doi:10.1016/j.electacta.2015.09.087

Cited by 27 publications

(11 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The surface of reduced Ni( x )@S16C might have been partially oxidized in the atmospheric environment during the sample transfer process before the XPS measurements. Thus, the binding energy signals of Ni 2p 3/2 in Figure S5 were likely due to the formation of NiO. − However, the relative shift of the Ni 2p 3/2 signal to a higher energy when the Ni loading was increased to 21.7 wt % could also have been a clue that the Ni NPs were interacting with the S16C support. Compared with samples with low Ni loading, the Ni(21.7)@S16C sample with high loading and large particle size might have led to a higher likelihood that the Ni NPs were situated outside the cage pores of S16C.…”

Section: Resultsmentioning

confidence: 99%

Size-Tunable Ni Nanoparticles Supported on Surface-Modified, Cage-Type Mesoporous Silica as Highly Active Catalysts for CO₂ Hydrogenation

et al. 2017

View full text Add to dashboard Cite

In this study, ultrasmall Ni nanoparticles (Ni NPs) were controllably supported in the cage-type mesopores of −COOH-functionalized mesoporous silica SBA-16 (denoted as Ni(x)@S16C, where x is the Ni loading) via wet impregnation under alkaline conditions, followed by thermal reduction. The particle sizes of the Ni NPs ranged from 2.7 to 4.7 nm, depending on the Ni loading. Under the appropriate alkaline conditions (i.e., pH 9) deprotonation of the carboxylic acid groups on the cage-type mesopore surfaces endowed the effective incorporation of Ni2+ precursors via favorable electrostatic interactions, and thus well-dispersed Ni NPs confined in the cage-type mesopores of SBA-16 were achieved. The combination of the cage-type mesopores and the surface functionality provided dual beneficial features to confine the immobilized Ni NPs and to tune their particle sizes. The remarkably enhanced catalytic activities of the Ni(x)@S16C materials for CO2 hydrogenation and CH4 formation were demonstrated. The cage-type SBA-16 support provided a positive effect for the Ni NPs to enrich the surface sites, which can strongly adsorb CO and CO2, thus leading to high catalytic rates for CO2 and CO hydrogenation. The reaction mechanism, catalytic kinetics, and active sites were investigated to correlate to the high reaction rate for CO2 hydrogenation to form CH4.

show abstract

Section: Resultsmentioning

confidence: 99%

Size-Tunable Ni Nanoparticles Supported on Surface-Modified, Cage-Type Mesoporous Silica as Highly Active Catalysts for CO₂ Hydrogenation

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Meanwhile, the characteristic bands of Ni 2p at 855.4 and 873.7 eV are also observed, ascribed to Ni 2p 3/2 and Ni 2p 1/2 , respectively, which are due to the Ni 2+ state in NiO. 55 The formation of nickel oxide in the SiO 2 @C-Ni composites is difficult to avoid because of oxidation of the sample by oxygen upon exposure to air. Notably, the majority of the nickel species in the sample are metallic nickel rather than nickel oxide.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Carbon-Supported Nickel Nanoparticles on SiO₂ Cores for Protein Adsorption and Nitroaromatics Reduction

Ding

Zhang

Ren

et al. 2020

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

Supported nonprecious metal nanoparticles (NPs) have attracted considerable interest for their low cost and excellent properties. However, immobilizing them with good dispersion on supports is still a great challenge. Herein, we report a one-pot Stöber method to prepare a high coverage of nickel (Ni) NPs anchored to a resorcinol–formaldehyde (RF)-derived graphic carbon layer on silica. By simple removal of the Ni NPs and silica cores, highly desired hollow graphitic carbon spheres with distinctive properties can be fabricated. Notably, nickel ions not only boost the polymerization of RF-Ni2+ but also control nickel-induced carbon graphitization when Ni NPs are generated from the nickel ions. Meanwhile, the RF-Ni2+ polymer can be finely covered on various supports, including MnO2 nanowires, graphene oxide, and carbon nanofibers, and can easily result in well-dispersed Ni NPs on these supports. Moreover, resorcinol can be replaced by similar chemicals like 3-aminophenol, melamine, and 2,4-dihydroxybenzoic acid to synthesize various polymers, greatly expanding the versatility of this method. Additionally, by a change of the molar ratio of resorcinol to nickel ion or control of the annealing temperature, the coverage and size of Ni NPs could be finely adjusted. Because of the high coverage of Ni NPs with good dispersion, the resultant SiO2@C-Ni hybrids display excellent performance in both the reduction of 4-nitrophenol and adsorption on histidine-rich proteins.

show abstract

“…with superior electrical conductivity and excellent chemical stability, usually work in the first mechanism as the SCs electrode materials, yielding large power density and long cycling life, but flat energy density. Transition metal oxides/hydroxide and conducting polymers normally work in the second mechanism, presenting high energy density but poor cycling stability due to the distortion of the microstructure in electrode materials resulting from the continuous redox reactions [ 7 , 8 , 9 , 10 ]. Hence, to develop advanced SC electrode materials, especially in the case of solving the problems of low energy density and poor cycling stability and pursuing high capacitance, is of vital significance.…”

Section: Introductionmentioning

confidence: 99%

“…When the material in the first column is the positive (negative) electrode in assembled SCs, it is donated as p (n) 2. Co-pyridine 3,5-dicarboxylate acid (MOF/PANI = 50/50%); 3 Mn-4,5-imidazole dicarboxylic acid;4 Ni-3,5-Dicarboxyl-(3 ,5 -dicarboxylazophenyl)benzene acid; 5 C cm −2 ; 6 F cm −2 ; 7 mA cm −2 8. The superscript of SC means that it is the properties of assembled SC device.…”

mentioning

confidence: 99%

The Application of Metal–Organic Frameworks and Their Derivatives for Supercapacitors

et al. 2020

Self Cite

View full text Add to dashboard Cite

Supercapacitors (SCs), one of the most popular types of energy-storage devices, present lots of advantages, such as large power density and fast charge/discharge capability. Being the promising SCs electrode materials, metal–organic frameworks (MOFs) and their derivatives have gained ever-increasing attention due to their large specific surface area, controllable porous structure and rich diversity. Herein, the recent development of MOFs-based materials and their application in SCs as the electrode are reviewed and summarized. The preparation method, the morphology of the materials and the electrical performance of various MOFs and their derivatives (such as carbon, metal oxide/hydroxide and metal sulfide) are briefly discussed. Most of recent works concentrate on Ni-, Co- and Mn-MOFs and their composites/derivatives. Conclusions and our outlook for the researches are also given, which would be a valuable guideline for the rational design of MOFs materials for SCs in the near future.

show abstract

A novel Ni@Ni(OH)2 coaxial core-sheath nanowire membrane for electrochemical energy storage electrodes with high volumetric capacity and excellent rate capability

Cited by 27 publications

References 43 publications

Size-Tunable Ni Nanoparticles Supported on Surface-Modified, Cage-Type Mesoporous Silica as Highly Active Catalysts for CO₂ Hydrogenation

Size-Tunable Ni Nanoparticles Supported on Surface-Modified, Cage-Type Mesoporous Silica as Highly Active Catalysts for CO₂ Hydrogenation

Carbon-Supported Nickel Nanoparticles on SiO₂ Cores for Protein Adsorption and Nitroaromatics Reduction

The Application of Metal–Organic Frameworks and Their Derivatives for Supercapacitors

Contact Info

Product

Resources

About

A novel Ni@Ni(OH)2 coaxial core-sheath nanowire membrane for electrochemical energy storage electrodes with high volumetric capacity and excellent rate capability

Cited by 27 publications

References 43 publications

Size-Tunable Ni Nanoparticles Supported on Surface-Modified, Cage-Type Mesoporous Silica as Highly Active Catalysts for CO2 Hydrogenation

Size-Tunable Ni Nanoparticles Supported on Surface-Modified, Cage-Type Mesoporous Silica as Highly Active Catalysts for CO2 Hydrogenation

Carbon-Supported Nickel Nanoparticles on SiO2 Cores for Protein Adsorption and Nitroaromatics Reduction

The Application of Metal–Organic Frameworks and Their Derivatives for Supercapacitors

Contact Info

Product

Resources

About

Size-Tunable Ni Nanoparticles Supported on Surface-Modified, Cage-Type Mesoporous Silica as Highly Active Catalysts for CO₂ Hydrogenation

Size-Tunable Ni Nanoparticles Supported on Surface-Modified, Cage-Type Mesoporous Silica as Highly Active Catalysts for CO₂ Hydrogenation

Carbon-Supported Nickel Nanoparticles on SiO₂ Cores for Protein Adsorption and Nitroaromatics Reduction