The Experts below are selected from a list of 19137 Experts worldwide ranked by ideXlab platform
Kazuyuki Kuroda - One of the best experts on this subject based on the ideXlab platform.
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electrochemical synthesis of mesoporous pt au Binary Alloys with tunable compositions for enhancement of electrochemical performance
Journal of the American Chemical Society, 2012Co-Authors: Yusuke Yamauchi, Akihisa Tonegawa, Masaki Komatsu, Hongjing Wang, Liang Wang, Yoshihiro Nemoto, Norihiro Suzuki, Kazuyuki KurodaAbstract:Mesoporous Pt–Au Binary Alloys were electrochemically synthesized from lyotropic liquid crystals (LLCs) containing corresponding metal species. Two-dimensional exagonally ordered LLC templates were prepared on conductive substrates from diluted surfactant solutions including water, a nonionic surfactant, ethanol, and metal species by drop-coating. Electrochemical synthesis using such LLC templates enabled the preparation of ordered mesoporous Pt–Au Binary Alloys without phase segregation. The framework composition in the mesoporous Pt–Au alloy was controlled simply by changing the compositional ratios in the precursor solution. Mesoporous Pt–Au Alloys with low Au content exhibited well-ordered 2D hexagonal mesostructures, reflecting those of the original templates. With increasing Au content, however, the mesostructural order gradually decreased, thereby reducing the electrochemically active surface area. Wide-angle X-ray diffraction profiles, X-ray photoelectron spectra, and elemental mapping showed that...
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electrochemical synthesis of mesoporous pt au Binary Alloys with tunable compositions for enhancement of electrochemical performance
Journal of the American Chemical Society, 2012Co-Authors: Yusuke Yamauchi, Akihisa Tonegawa, Masaki Komatsu, Hongjing Wang, Liang Wang, Yoshihiro Nemoto, Norihiro Suzuki, Kazuyuki KurodaAbstract:Mesoporous Pt-Au Binary Alloys were electrochemically synthesized from lyotropic liquid crystals (LLCs) containing corresponding metal species. Two-dimensional exagonally ordered LLC templates were prepared on conductive substrates from diluted surfactant solutions including water, a nonionic surfactant, ethanol, and metal species by drop-coating. Electrochemical synthesis using such LLC templates enabled the preparation of ordered mesoporous Pt-Au Binary Alloys without phase segregation. The framework composition in the mesoporous Pt-Au alloy was controlled simply by changing the compositional ratios in the precursor solution. Mesoporous Pt-Au Alloys with low Au content exhibited well-ordered 2D hexagonal mesostructures, reflecting those of the original templates. With increasing Au content, however, the mesostructural order gradually decreased, thereby reducing the electrochemically active surface area. Wide-angle X-ray diffraction profiles, X-ray photoelectron spectra, and elemental mapping showed that both Pt and Au were atomically distributed in the frameworks. The electrochemical stability of mesoporous Pt-Au Alloys toward methanol oxidation was highly improved relative to that of nonporous Pt and mesoporous Pt films, suggesting that mesoporous Pt-Au alloy films are potentially applicable as electrocatalysts for direct methanol fuel cells. Also, mesoporous Pt-Au alloy electrodes showed a highly sensitive amperometric response for glucose molecules, which will be useful in next-generation enzyme-free glucose sensors.
Yusuke Yamauchi - One of the best experts on this subject based on the ideXlab platform.
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electrochemical synthesis of mesoporous pt au Binary Alloys with tunable compositions for enhancement of electrochemical performance
Journal of the American Chemical Society, 2012Co-Authors: Yusuke Yamauchi, Akihisa Tonegawa, Masaki Komatsu, Hongjing Wang, Liang Wang, Yoshihiro Nemoto, Norihiro Suzuki, Kazuyuki KurodaAbstract:Mesoporous Pt–Au Binary Alloys were electrochemically synthesized from lyotropic liquid crystals (LLCs) containing corresponding metal species. Two-dimensional exagonally ordered LLC templates were prepared on conductive substrates from diluted surfactant solutions including water, a nonionic surfactant, ethanol, and metal species by drop-coating. Electrochemical synthesis using such LLC templates enabled the preparation of ordered mesoporous Pt–Au Binary Alloys without phase segregation. The framework composition in the mesoporous Pt–Au alloy was controlled simply by changing the compositional ratios in the precursor solution. Mesoporous Pt–Au Alloys with low Au content exhibited well-ordered 2D hexagonal mesostructures, reflecting those of the original templates. With increasing Au content, however, the mesostructural order gradually decreased, thereby reducing the electrochemically active surface area. Wide-angle X-ray diffraction profiles, X-ray photoelectron spectra, and elemental mapping showed that...
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electrochemical synthesis of mesoporous pt au Binary Alloys with tunable compositions for enhancement of electrochemical performance
Journal of the American Chemical Society, 2012Co-Authors: Yusuke Yamauchi, Akihisa Tonegawa, Masaki Komatsu, Hongjing Wang, Liang Wang, Yoshihiro Nemoto, Norihiro Suzuki, Kazuyuki KurodaAbstract:Mesoporous Pt-Au Binary Alloys were electrochemically synthesized from lyotropic liquid crystals (LLCs) containing corresponding metal species. Two-dimensional exagonally ordered LLC templates were prepared on conductive substrates from diluted surfactant solutions including water, a nonionic surfactant, ethanol, and metal species by drop-coating. Electrochemical synthesis using such LLC templates enabled the preparation of ordered mesoporous Pt-Au Binary Alloys without phase segregation. The framework composition in the mesoporous Pt-Au alloy was controlled simply by changing the compositional ratios in the precursor solution. Mesoporous Pt-Au Alloys with low Au content exhibited well-ordered 2D hexagonal mesostructures, reflecting those of the original templates. With increasing Au content, however, the mesostructural order gradually decreased, thereby reducing the electrochemically active surface area. Wide-angle X-ray diffraction profiles, X-ray photoelectron spectra, and elemental mapping showed that both Pt and Au were atomically distributed in the frameworks. The electrochemical stability of mesoporous Pt-Au Alloys toward methanol oxidation was highly improved relative to that of nonporous Pt and mesoporous Pt films, suggesting that mesoporous Pt-Au alloy films are potentially applicable as electrocatalysts for direct methanol fuel cells. Also, mesoporous Pt-Au alloy electrodes showed a highly sensitive amperometric response for glucose molecules, which will be useful in next-generation enzyme-free glucose sensors.
Akihisa Tonegawa - One of the best experts on this subject based on the ideXlab platform.
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electrochemical synthesis of mesoporous pt au Binary Alloys with tunable compositions for enhancement of electrochemical performance
Journal of the American Chemical Society, 2012Co-Authors: Yusuke Yamauchi, Akihisa Tonegawa, Masaki Komatsu, Hongjing Wang, Liang Wang, Yoshihiro Nemoto, Norihiro Suzuki, Kazuyuki KurodaAbstract:Mesoporous Pt–Au Binary Alloys were electrochemically synthesized from lyotropic liquid crystals (LLCs) containing corresponding metal species. Two-dimensional exagonally ordered LLC templates were prepared on conductive substrates from diluted surfactant solutions including water, a nonionic surfactant, ethanol, and metal species by drop-coating. Electrochemical synthesis using such LLC templates enabled the preparation of ordered mesoporous Pt–Au Binary Alloys without phase segregation. The framework composition in the mesoporous Pt–Au alloy was controlled simply by changing the compositional ratios in the precursor solution. Mesoporous Pt–Au Alloys with low Au content exhibited well-ordered 2D hexagonal mesostructures, reflecting those of the original templates. With increasing Au content, however, the mesostructural order gradually decreased, thereby reducing the electrochemically active surface area. Wide-angle X-ray diffraction profiles, X-ray photoelectron spectra, and elemental mapping showed that...
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electrochemical synthesis of mesoporous pt au Binary Alloys with tunable compositions for enhancement of electrochemical performance
Journal of the American Chemical Society, 2012Co-Authors: Yusuke Yamauchi, Akihisa Tonegawa, Masaki Komatsu, Hongjing Wang, Liang Wang, Yoshihiro Nemoto, Norihiro Suzuki, Kazuyuki KurodaAbstract:Mesoporous Pt-Au Binary Alloys were electrochemically synthesized from lyotropic liquid crystals (LLCs) containing corresponding metal species. Two-dimensional exagonally ordered LLC templates were prepared on conductive substrates from diluted surfactant solutions including water, a nonionic surfactant, ethanol, and metal species by drop-coating. Electrochemical synthesis using such LLC templates enabled the preparation of ordered mesoporous Pt-Au Binary Alloys without phase segregation. The framework composition in the mesoporous Pt-Au alloy was controlled simply by changing the compositional ratios in the precursor solution. Mesoporous Pt-Au Alloys with low Au content exhibited well-ordered 2D hexagonal mesostructures, reflecting those of the original templates. With increasing Au content, however, the mesostructural order gradually decreased, thereby reducing the electrochemically active surface area. Wide-angle X-ray diffraction profiles, X-ray photoelectron spectra, and elemental mapping showed that both Pt and Au were atomically distributed in the frameworks. The electrochemical stability of mesoporous Pt-Au Alloys toward methanol oxidation was highly improved relative to that of nonporous Pt and mesoporous Pt films, suggesting that mesoporous Pt-Au alloy films are potentially applicable as electrocatalysts for direct methanol fuel cells. Also, mesoporous Pt-Au alloy electrodes showed a highly sensitive amperometric response for glucose molecules, which will be useful in next-generation enzyme-free glucose sensors.
Masaki Komatsu - One of the best experts on this subject based on the ideXlab platform.
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electrochemical synthesis of mesoporous pt au Binary Alloys with tunable compositions for enhancement of electrochemical performance
Journal of the American Chemical Society, 2012Co-Authors: Yusuke Yamauchi, Akihisa Tonegawa, Masaki Komatsu, Hongjing Wang, Liang Wang, Yoshihiro Nemoto, Norihiro Suzuki, Kazuyuki KurodaAbstract:Mesoporous Pt–Au Binary Alloys were electrochemically synthesized from lyotropic liquid crystals (LLCs) containing corresponding metal species. Two-dimensional exagonally ordered LLC templates were prepared on conductive substrates from diluted surfactant solutions including water, a nonionic surfactant, ethanol, and metal species by drop-coating. Electrochemical synthesis using such LLC templates enabled the preparation of ordered mesoporous Pt–Au Binary Alloys without phase segregation. The framework composition in the mesoporous Pt–Au alloy was controlled simply by changing the compositional ratios in the precursor solution. Mesoporous Pt–Au Alloys with low Au content exhibited well-ordered 2D hexagonal mesostructures, reflecting those of the original templates. With increasing Au content, however, the mesostructural order gradually decreased, thereby reducing the electrochemically active surface area. Wide-angle X-ray diffraction profiles, X-ray photoelectron spectra, and elemental mapping showed that...
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electrochemical synthesis of mesoporous pt au Binary Alloys with tunable compositions for enhancement of electrochemical performance
Journal of the American Chemical Society, 2012Co-Authors: Yusuke Yamauchi, Akihisa Tonegawa, Masaki Komatsu, Hongjing Wang, Liang Wang, Yoshihiro Nemoto, Norihiro Suzuki, Kazuyuki KurodaAbstract:Mesoporous Pt-Au Binary Alloys were electrochemically synthesized from lyotropic liquid crystals (LLCs) containing corresponding metal species. Two-dimensional exagonally ordered LLC templates were prepared on conductive substrates from diluted surfactant solutions including water, a nonionic surfactant, ethanol, and metal species by drop-coating. Electrochemical synthesis using such LLC templates enabled the preparation of ordered mesoporous Pt-Au Binary Alloys without phase segregation. The framework composition in the mesoporous Pt-Au alloy was controlled simply by changing the compositional ratios in the precursor solution. Mesoporous Pt-Au Alloys with low Au content exhibited well-ordered 2D hexagonal mesostructures, reflecting those of the original templates. With increasing Au content, however, the mesostructural order gradually decreased, thereby reducing the electrochemically active surface area. Wide-angle X-ray diffraction profiles, X-ray photoelectron spectra, and elemental mapping showed that both Pt and Au were atomically distributed in the frameworks. The electrochemical stability of mesoporous Pt-Au Alloys toward methanol oxidation was highly improved relative to that of nonporous Pt and mesoporous Pt films, suggesting that mesoporous Pt-Au alloy films are potentially applicable as electrocatalysts for direct methanol fuel cells. Also, mesoporous Pt-Au alloy electrodes showed a highly sensitive amperometric response for glucose molecules, which will be useful in next-generation enzyme-free glucose sensors.
Hongjing Wang - One of the best experts on this subject based on the ideXlab platform.
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electrochemical synthesis of mesoporous pt au Binary Alloys with tunable compositions for enhancement of electrochemical performance
Journal of the American Chemical Society, 2012Co-Authors: Yusuke Yamauchi, Akihisa Tonegawa, Masaki Komatsu, Hongjing Wang, Liang Wang, Yoshihiro Nemoto, Norihiro Suzuki, Kazuyuki KurodaAbstract:Mesoporous Pt–Au Binary Alloys were electrochemically synthesized from lyotropic liquid crystals (LLCs) containing corresponding metal species. Two-dimensional exagonally ordered LLC templates were prepared on conductive substrates from diluted surfactant solutions including water, a nonionic surfactant, ethanol, and metal species by drop-coating. Electrochemical synthesis using such LLC templates enabled the preparation of ordered mesoporous Pt–Au Binary Alloys without phase segregation. The framework composition in the mesoporous Pt–Au alloy was controlled simply by changing the compositional ratios in the precursor solution. Mesoporous Pt–Au Alloys with low Au content exhibited well-ordered 2D hexagonal mesostructures, reflecting those of the original templates. With increasing Au content, however, the mesostructural order gradually decreased, thereby reducing the electrochemically active surface area. Wide-angle X-ray diffraction profiles, X-ray photoelectron spectra, and elemental mapping showed that...
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electrochemical synthesis of mesoporous pt au Binary Alloys with tunable compositions for enhancement of electrochemical performance
Journal of the American Chemical Society, 2012Co-Authors: Yusuke Yamauchi, Akihisa Tonegawa, Masaki Komatsu, Hongjing Wang, Liang Wang, Yoshihiro Nemoto, Norihiro Suzuki, Kazuyuki KurodaAbstract:Mesoporous Pt-Au Binary Alloys were electrochemically synthesized from lyotropic liquid crystals (LLCs) containing corresponding metal species. Two-dimensional exagonally ordered LLC templates were prepared on conductive substrates from diluted surfactant solutions including water, a nonionic surfactant, ethanol, and metal species by drop-coating. Electrochemical synthesis using such LLC templates enabled the preparation of ordered mesoporous Pt-Au Binary Alloys without phase segregation. The framework composition in the mesoporous Pt-Au alloy was controlled simply by changing the compositional ratios in the precursor solution. Mesoporous Pt-Au Alloys with low Au content exhibited well-ordered 2D hexagonal mesostructures, reflecting those of the original templates. With increasing Au content, however, the mesostructural order gradually decreased, thereby reducing the electrochemically active surface area. Wide-angle X-ray diffraction profiles, X-ray photoelectron spectra, and elemental mapping showed that both Pt and Au were atomically distributed in the frameworks. The electrochemical stability of mesoporous Pt-Au Alloys toward methanol oxidation was highly improved relative to that of nonporous Pt and mesoporous Pt films, suggesting that mesoporous Pt-Au alloy films are potentially applicable as electrocatalysts for direct methanol fuel cells. Also, mesoporous Pt-Au alloy electrodes showed a highly sensitive amperometric response for glucose molecules, which will be useful in next-generation enzyme-free glucose sensors.
