Multimetallic Mesoporous Spheres Through Surfactant‐Directed Synthesis

Jiang, Bo; Li, Cuiling; Imura, Masataka; Tang, Jing; Yamauchi, Yusuke

doi:10.1002/advs.201500112

Cited by 120 publications

(116 citation statements)

References 59 publications

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“…Indeed, without the addition of Pt precursor the reaction did not turn black, indicating that Cu 2+ species cannot be reduced by AA under these conditions (Figure S3 c, Supporting Information). Previous studies revealed that hydrochloric acid (HCl) can also affect the rate of the reaction by decreasing the reduction capacity of AA (Figure S4, Supporting Information) . Synthesizing the nanoparticles without PEO‐ b ‐PMMA resulted in large (diameter ≈500 nm) nonporous PtCu nanoparticles, further confirming that PEO‐ b ‐PMMA serves as the pore‐directing agent (Figure S5, Supporting Information).…”

Section: Resultssupporting

confidence: 52%

Mesoporous PtCu Alloy Nanoparticles with Tunable Compositions and Particles Sizes Using Diblock Copolymer Micelle Templates

Kang

Jiang

ALOthman

et al. 2018

Chemistry A European J

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A simple, scalable route for the generation of mesoporous Rh particles by chemical reduction on self‐assembled block‐copolymer micelle templates was reported recently (Nat. Commun. 2017, 8, 15581). Here, this concept is extended to generate mesoporous PtCu alloy nanoparticles through the same approach. The PtCu alloy particles possess high‐surface‐area nanoporous architectures and good chemical stability for applications in catalysis. Both the composition and diameter of the bimetallic PtCu nanoparticles can be controlled by adjusting the amount of precursor in the reaction, which affects the electrochemical properties of the material. The combination of the mesoporous structure with the synergistic bimetallic electronic effects of PtCu gives rise to enhanced activity for the catalytic oxidation of methanol compared with commercial Pt black.

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Section: Resultssupporting

confidence: 52%

Mesoporous PtCu Alloy Nanoparticles with Tunable Compositions and Particles Sizes Using Diblock Copolymer Micelle Templates

Kang

Jiang

ALOthman

et al. 2018

Chemistry A European J

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“…If F127 is replaced with other surfactants (e.g., PVP and Brij 58), mesoporous nanostructures cannot be obtained (Figure S4 in the Supporting Information). These results suggest that F127 serves as both a protecting agent for the prevention of particle aggregation and as a structure‐directing agent for directing the formation of the mesoporous structure …”

Section: Resultsmentioning

confidence: 99%

Enhanced Dual Fuel Cell Electrocatalysis with Trimetallic PtPdCo Mesoporous Nanoparticles

et al. 2018

Chemistry An Asian Journal

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The facile preparation of platinum-based catalysts with designed compositions and structures is of great importance for fuel cells. In this work, a one-pot method is developed to synthesize monodispersed trimetallic PtPdCo mesoporous nanoparticles (PtPdCo MNs) with uniform morphology and size. The proposed synthetic method does not require any hard template or organic solvent, which greatly simplifies the preparation procedure. PtPdCo MNs, with a highly porous structure, exhibit enhanced electrocatalytic activities and excellent stabilities for both the formic acid oxidation reaction and the oxygen reduction reaction, relative to bimetallic PtPd MNs and commercial Pt/C catalyst. The proposed synthetic method is highly valuable for the design of mesoporous multimetallic catalysts for fuel cells.

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“…Unique properties, such as a high surface area and the presence of multifunctional active sites, offer significant advantages for promising applications, including catalysts or catalysis support of various reactions, adsorption, separation of large molecules, sensors, and fuel cells . Among various types of mesoporous materials, mesoporous metals with high electroconductivity are promising materials to be implemented in electrochemical applications …”

Section: Introductionmentioning

confidence: 99%

Block‐Copolymer‐Assisted Electrochemical Synthesis of Mesoporous Gold Electrodes: Towards a Non‐Enzymatic Glucose Sensor

Nugraha

Iqbal

et al. 2017

ChemElectroChem

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Sensing technology for biomolecules has played a key role for maintaining a high quality of life. Various kinds of sensing techniques have been developed for detecting biomolecules. Among the detection techniques which have been reported so far, non‐enzymatic glucose detection, based on electrochemical mechanisms, has attracted great interest as a facile route for monitoring glucose levels in the blood. In this method, designing nanostructured electrodes is a promising strategy to improve detection performance. Owing to their fascinating physicochemical properties, including superior electrical and electrocatalytic properties, mesoporous metal films offer a wide range of useful applications which cannot be achieved by other mesoporous materials. In this work, mesoporous Au films (MpGFs) are synthesized by an effective and simple electrochemical process in the presence of a surfactant, where the mesoporous structure can be controlled by the size of the polymeric micelles. The micelles are removed using a tetrahydrofuran‐based solvent‐extraction method. The activity of MpGFs towards glucose oxidation is evaluated under a fixed potential in alkaline solution. Under optimal potentials, the current response for other interfering molecules is minimal, while the current response for glucose is maximal. A linear relationship between the current response and the glucose content is observed over a wide range of concentrations. Thus, our MpGF shows an excellent performance for electrochemical glucose sensing applications.

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Multimetallic Mesoporous Spheres Through Surfactant‐Directed Synthesis

Cited by 120 publications

References 59 publications

Mesoporous PtCu Alloy Nanoparticles with Tunable Compositions and Particles Sizes Using Diblock Copolymer Micelle Templates

Mesoporous PtCu Alloy Nanoparticles with Tunable Compositions and Particles Sizes Using Diblock Copolymer Micelle Templates

Enhanced Dual Fuel Cell Electrocatalysis with Trimetallic PtPdCo Mesoporous Nanoparticles

Block‐Copolymer‐Assisted Electrochemical Synthesis of Mesoporous Gold Electrodes: Towards a Non‐Enzymatic Glucose Sensor

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