Hydrothermal synthesis of Ni-Co-Cu alloy nanoparticles from low nickel matte

Chen, T.; Sun, Yujia; Guo, Min; Zhang, M.

doi:10.1016/j.jallcom.2018.06.342

Cited by 21 publications

(13 citation statements)

References 37 publications

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“…In light of the HRTEM images (Figure b1–b3), the interspacing of the (200) and (111) planes has expanded with respect to that of the pure Ni phase, indicating that the Co/Cu atoms would incorporate into the Ni lattice (the size of Co/Cu atoms is slightly bigger than that of Ni atom) and the alloying phases should form. The current observations coincide with those previously reported by Fu et al, Zeng et al, and Chen et al…”

Section: Resultssupporting

confidence: 94%

Selective Hydrogenation of Polyenes in Biomass-Derived Cardanol over the Trimetallic Ni–Co–Cu Catalyst Supported on Morphologically Controlled Alumina

Ding,

Xu,

Fang

et al. 2023

Ind. Eng. Chem. Res.

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The aim of this study is to achieve a high fraction of monoene in biomass-derived cardanol to manipulate a well-balanced potential of cross-linking and coupling between resin and curing agent for heavy-duty coating. We reported a heterogeneous nonprecious trimetallic catalyst for selective hydrogenation of polyenes in cardanol for the first time. By cointroducing the second and third metal constituents (Cu and Co), and particularly facet controlling as well as Zn doping of Al2O3 substrate, we can accomplish the highly selective hydrogenation of triene/diene into monoene with variable ratio. The larger sized Ni entities with higher electron density on the Al2O3 hexagonal plates are more favorable for activating triene/diene responsible for a high potential of selective hydrogenation. On the other hand, the Ni0 fraction is comparatively lower, while the mean particle size of Ni0 is the smallest with lower electron density on the commercially obtained γ-Al2O3 spherules. The latter kind of Ni entities is more favorable for activating hydrogen to generate highly reactive H species accounting for a strong potential of full hydrogenation. Over a fine-tuned 10% Ni-5% Co-3% Cu/3% Zn-Al2O3-hexagonal plate under the optimized conditions (7.5% cardanol in n-butanol, 2.5 MPa H2, 80 °C, and 3.5 h), as high as 76% monoene can be obtainable. It is worth noting that not only the current catalyst system is more economic but also the reaction becomes kinetically much faster (within 3.5 h). This catalyst system is operational to a large-scale application in the modification of cardanol via selective hydrogenation. Ni–Co–Cu synergism and low-content Zn modification of the Al2O3 (110) facet are essential to achieve the aim of this study.

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Section: Resultssupporting

confidence: 94%

Selective Hydrogenation of Polyenes in Biomass-Derived Cardanol over the Trimetallic Ni–Co–Cu Catalyst Supported on Morphologically Controlled Alumina

Ding,

Xu,

Fang

et al. 2023

Ind. Eng. Chem. Res.

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“…The lattice spacing of hollow CuCoNi nanoparticle was 0.262 nm (see Fig. S16), corresponding to the EDS mapping [ 42 ].…”

Section: Resultsmentioning

confidence: 99%

Ultra-small hollow ternary alloy nanoparticles for efficient hydrogen evolution reaction

Liu

Kang

et al. 2020

National Science Review

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Hollow nanoparticles with large specific surface area and high atom utilization are promising catalysts for the hydrogen evolution reaction (HER). We describe herein the design and synthesis of a series of ultra-small hollow ternary alloy nanostructures using a simple one-pot strategy. The same technique was demonstrated for hollow PtNiCu nanoparticles, hollow PtCoCu nanoparticles, and hollow CuNiCo nanoparticles. During synthesis, the displacement reaction and oxidative etching played important roles in the formation of hollow structures. Moreover, our hollow PtNiCu and PtCoCu nanoparticles were single-crystalline, with an average diameter of 5 nm. Impressively, ultra-small hollow PtNiCu nanoparticles, containing only 10% Pt, exhibited greater electrocatalytic HER activity and stability than a commercial Pt/C catalyst. The overpotential of hollow PtNiCu nanoparticles at 10 mA cm−2 was 28 mV versus RHE. The mass activity was 4.54 A mgPt−1 at -70 mV versus RHE, which is 5.62-fold greater than that of a commercial Pt/C system (0.81 A mgPt−1). Through analyses of bonding and antibonding orbital filling, density functional theory (DFT) calculations demonstrated that the bonding strength of different metals to the hydrogen intermediate (H*) was in the order of Pt > Co > Ni > Cu. The excellent HER performance of our hollow PtNiCu nanoparticles derives from moderately synergistic interactions between the three metals and H*. This work demonstrates a new strategy for the design of low-cost and high-activity HER catalysts.

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“…However, they easily lose their magnetization because of poor chemical stability and biocompatibility and high reactivity to oxidation [56] . In order to enhance their resistance toward oxidation, adding other MANPs such as Ni−Co, [57] Ni−Co−Cu, [58] Ni−Cu, [59] and Fe−Co [56] can be considered, if the magnetic properties are maintained. MMONPs include metal oxides, such as Fe 3 O 4 and γ‐Fe 2 O 3 , and ferrites (M(Fe x O y )) which are iron oxides loaded by a metal with beneficial magnetic and dielectric properties.…”

Section: Magnetothermally Responsive Nanomaterials For Therapy Applicmentioning

confidence: 99%

Photo‐ and Magnetothermally Responsive Nanomaterials for Therapy, Controlled Drug Delivery and Imaging Applications

et al. 2020

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Hyperthermia generates heat as a cure for illness and it is not a chemical treatment. Nanomaterials are supposed to provide novel mechanisms to tackle photothermal and magnetothermal problems, with the potential also to deal with specific approaches to care. The present review outlines recent developments in the field of photothermal and magnetothermal responsive nanomaterials and the photothermal approach mechanism over the last years. These photo/magnetothermal nanomaterials are classified into gold nanostructures (various shapes), carbon nanomaterials (CNTs, fullerene, carbon quantum dots, and graphene), inorganic nanomaterials (Fe, Pt, Pd, Bi, MOF, MoSe2, inorganic quantum dots, etc.) and organic nanoparticles (PLGA (Poly Lactic‐co‐Glycolic Acid) and other nanopolymers). Different groups may be placed together to improve the potential of the photothermal/magnetothermal effects, treatments, drug delivery, and imaging. The review also describes synthesis strategies for photothermal/magnetothermal nanomaterials, physicochemical characterization, the role of size, size distribution, shape, and surface coating of nanomaterials, challenges, and future scopes of photothermal/magnetothermal responsive nanomaterials for therapy, controlled drug delivery, and imaging applications. The recent development in nanomaterial has shown great potential for tumor diagnostic and therapeutic applications in hyperthermia. Magnetic hyperthermia (also called thermal therapy or thermotherapy) is a type of cancer treatment in which body tissue is exposed to high temperatures (up to 41 °C) in presence of a magnetic field. Research has shown that high temperatures can damage and kill cancer cells, usually with minimal injury to normal tissues. By killing cancer cells and damaging proteins and structures within cells, hyperthermia can necrotize tumor cells. This treatment can be local, regional, or whole‐body hyperthermia, depending on the extent of the area being treated. Hyperthermia can be combined with anticancer drugs or chemotherapy to enhance cancer treatment. In this article, we have discussed recent nanomaterials utilized for this treatment, mechanism, and synthesis methods.

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Hydrothermal synthesis of Ni-Co-Cu alloy nanoparticles from low nickel matte

Cited by 21 publications

References 37 publications

Selective Hydrogenation of Polyenes in Biomass-Derived Cardanol over the Trimetallic Ni–Co–Cu Catalyst Supported on Morphologically Controlled Alumina

Selective Hydrogenation of Polyenes in Biomass-Derived Cardanol over the Trimetallic Ni–Co–Cu Catalyst Supported on Morphologically Controlled Alumina

Ultra-small hollow ternary alloy nanoparticles for efficient hydrogen evolution reaction

Photo‐ and Magnetothermally Responsive Nanomaterials for Therapy, Controlled Drug Delivery and Imaging Applications

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