The Experts below are selected from a list of 222 Experts worldwide ranked by ideXlab platform
Masashi Okubo - One of the best experts on this subject based on the ideXlab platform.
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Intermediate honeycomb ordering to trigger oxygen redox chemistry in layered battery electrode
Nature communications, 2016Co-Authors: Benoit Mortemard De Boisse, Guandong Liu, Shin-ichi Nishimura, Sai Cheong Chung, Hisao Kiuchi, Yoshihisa Harada, Jun Kikkawa, Yoshio Kobayashi, Masashi OkuboAbstract:Sodium-Excess Metal oxides Na2MO3 are appealing cathode materials for sodium-ion batteries. Here, the authors demonstrate that honeycomb-type cation ordering in Na2RuO3 triggers the oxygen redox reaction via frontier orbital reorganization, increasing the capacity by 1/3 compared with disordered Na2RuO3.
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Intermediate honeycomb ordering to trigger oxygen redox chemistry in layered battery electrode
Nature Communications, 2016Co-Authors: Benoit Mortemard De Boisse, Guandong Liu, Shin-ichi Nishimura, Sai Cheong Chung, Hisao Kiuchi, Yoshihisa Harada, Jun Kikkawa, Yoshio Kobayashi, Masashi Okubo, Atsuo YamadaAbstract:Sodium-Excess Metal oxides Na_2MO_3 are appealing cathode materials for sodium-ion batteries. Here, the authors demonstrate that honeycomb-type cation ordering in Na_2RuO_3 triggers the oxygen redox reaction via frontier orbital reorganization, increasing the capacity by 1/3 compared with disordered Na_2RuO_3. Sodium-ion batteries are attractive energy storage media owing to the abundance of sodium, but the low capacities of available cathode materials make them impractical. Sodium-Excess Metal oxides Na_2MO_3 (M: transition Metal) are appealing cathode materials that may realize large capacities through additional oxygen redox reaction. However, the general strategies for enhancing the capacity of Na_2MO_3 are poorly established. Here using two polymorphs of Na_2RuO_3, we demonstrate the critical role of honeycomb-type cation ordering in Na_2MO_3. Ordered Na_2RuO_3 with honeycomb-ordered [Na_1/3Ru_2/3]O_2 slabs delivers a capacity of 180 mAh g^−1 (1.3-electron reaction), whereas disordered Na_2RuO_3 only delivers 135 mAh g^−1 (1.0-electron reaction). We clarify that the large extra capacity of ordered Na_2RuO_3 is enabled by a spontaneously ordered intermediate Na_1RuO_3 phase with ilmenite O1 structure, which induces frontier orbital reorganization to trigger the oxygen redox reaction, unveiling a general requisite for the stable oxygen redox reaction in high-capacity Na_2MO_3 cathodes.
Atsuo Yamada - One of the best experts on this subject based on the ideXlab platform.
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Intermediate honeycomb ordering to trigger oxygen redox chemistry in layered battery electrode
Nature Communications, 2016Co-Authors: Benoit Mortemard De Boisse, Guandong Liu, Shin-ichi Nishimura, Sai Cheong Chung, Hisao Kiuchi, Yoshihisa Harada, Jun Kikkawa, Yoshio Kobayashi, Masashi Okubo, Atsuo YamadaAbstract:Sodium-Excess Metal oxides Na_2MO_3 are appealing cathode materials for sodium-ion batteries. Here, the authors demonstrate that honeycomb-type cation ordering in Na_2RuO_3 triggers the oxygen redox reaction via frontier orbital reorganization, increasing the capacity by 1/3 compared with disordered Na_2RuO_3. Sodium-ion batteries are attractive energy storage media owing to the abundance of sodium, but the low capacities of available cathode materials make them impractical. Sodium-Excess Metal oxides Na_2MO_3 (M: transition Metal) are appealing cathode materials that may realize large capacities through additional oxygen redox reaction. However, the general strategies for enhancing the capacity of Na_2MO_3 are poorly established. Here using two polymorphs of Na_2RuO_3, we demonstrate the critical role of honeycomb-type cation ordering in Na_2MO_3. Ordered Na_2RuO_3 with honeycomb-ordered [Na_1/3Ru_2/3]O_2 slabs delivers a capacity of 180 mAh g^−1 (1.3-electron reaction), whereas disordered Na_2RuO_3 only delivers 135 mAh g^−1 (1.0-electron reaction). We clarify that the large extra capacity of ordered Na_2RuO_3 is enabled by a spontaneously ordered intermediate Na_1RuO_3 phase with ilmenite O1 structure, which induces frontier orbital reorganization to trigger the oxygen redox reaction, unveiling a general requisite for the stable oxygen redox reaction in high-capacity Na_2MO_3 cathodes.
Yoshio Kobayashi - One of the best experts on this subject based on the ideXlab platform.
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Intermediate honeycomb ordering to trigger oxygen redox chemistry in layered battery electrode
Nature communications, 2016Co-Authors: Benoit Mortemard De Boisse, Guandong Liu, Shin-ichi Nishimura, Sai Cheong Chung, Hisao Kiuchi, Yoshihisa Harada, Jun Kikkawa, Yoshio Kobayashi, Masashi OkuboAbstract:Sodium-Excess Metal oxides Na2MO3 are appealing cathode materials for sodium-ion batteries. Here, the authors demonstrate that honeycomb-type cation ordering in Na2RuO3 triggers the oxygen redox reaction via frontier orbital reorganization, increasing the capacity by 1/3 compared with disordered Na2RuO3.
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Intermediate honeycomb ordering to trigger oxygen redox chemistry in layered battery electrode
Nature Communications, 2016Co-Authors: Benoit Mortemard De Boisse, Guandong Liu, Shin-ichi Nishimura, Sai Cheong Chung, Hisao Kiuchi, Yoshihisa Harada, Jun Kikkawa, Yoshio Kobayashi, Masashi Okubo, Atsuo YamadaAbstract:Sodium-Excess Metal oxides Na_2MO_3 are appealing cathode materials for sodium-ion batteries. Here, the authors demonstrate that honeycomb-type cation ordering in Na_2RuO_3 triggers the oxygen redox reaction via frontier orbital reorganization, increasing the capacity by 1/3 compared with disordered Na_2RuO_3. Sodium-ion batteries are attractive energy storage media owing to the abundance of sodium, but the low capacities of available cathode materials make them impractical. Sodium-Excess Metal oxides Na_2MO_3 (M: transition Metal) are appealing cathode materials that may realize large capacities through additional oxygen redox reaction. However, the general strategies for enhancing the capacity of Na_2MO_3 are poorly established. Here using two polymorphs of Na_2RuO_3, we demonstrate the critical role of honeycomb-type cation ordering in Na_2MO_3. Ordered Na_2RuO_3 with honeycomb-ordered [Na_1/3Ru_2/3]O_2 slabs delivers a capacity of 180 mAh g^−1 (1.3-electron reaction), whereas disordered Na_2RuO_3 only delivers 135 mAh g^−1 (1.0-electron reaction). We clarify that the large extra capacity of ordered Na_2RuO_3 is enabled by a spontaneously ordered intermediate Na_1RuO_3 phase with ilmenite O1 structure, which induces frontier orbital reorganization to trigger the oxygen redox reaction, unveiling a general requisite for the stable oxygen redox reaction in high-capacity Na_2MO_3 cathodes.
Guandong Liu - One of the best experts on this subject based on the ideXlab platform.
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Intermediate honeycomb ordering to trigger oxygen redox chemistry in layered battery electrode
Nature communications, 2016Co-Authors: Benoit Mortemard De Boisse, Guandong Liu, Shin-ichi Nishimura, Sai Cheong Chung, Hisao Kiuchi, Yoshihisa Harada, Jun Kikkawa, Yoshio Kobayashi, Masashi OkuboAbstract:Sodium-Excess Metal oxides Na2MO3 are appealing cathode materials for sodium-ion batteries. Here, the authors demonstrate that honeycomb-type cation ordering in Na2RuO3 triggers the oxygen redox reaction via frontier orbital reorganization, increasing the capacity by 1/3 compared with disordered Na2RuO3.
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Intermediate honeycomb ordering to trigger oxygen redox chemistry in layered battery electrode
Nature Communications, 2016Co-Authors: Benoit Mortemard De Boisse, Guandong Liu, Shin-ichi Nishimura, Sai Cheong Chung, Hisao Kiuchi, Yoshihisa Harada, Jun Kikkawa, Yoshio Kobayashi, Masashi Okubo, Atsuo YamadaAbstract:Sodium-Excess Metal oxides Na_2MO_3 are appealing cathode materials for sodium-ion batteries. Here, the authors demonstrate that honeycomb-type cation ordering in Na_2RuO_3 triggers the oxygen redox reaction via frontier orbital reorganization, increasing the capacity by 1/3 compared with disordered Na_2RuO_3. Sodium-ion batteries are attractive energy storage media owing to the abundance of sodium, but the low capacities of available cathode materials make them impractical. Sodium-Excess Metal oxides Na_2MO_3 (M: transition Metal) are appealing cathode materials that may realize large capacities through additional oxygen redox reaction. However, the general strategies for enhancing the capacity of Na_2MO_3 are poorly established. Here using two polymorphs of Na_2RuO_3, we demonstrate the critical role of honeycomb-type cation ordering in Na_2MO_3. Ordered Na_2RuO_3 with honeycomb-ordered [Na_1/3Ru_2/3]O_2 slabs delivers a capacity of 180 mAh g^−1 (1.3-electron reaction), whereas disordered Na_2RuO_3 only delivers 135 mAh g^−1 (1.0-electron reaction). We clarify that the large extra capacity of ordered Na_2RuO_3 is enabled by a spontaneously ordered intermediate Na_1RuO_3 phase with ilmenite O1 structure, which induces frontier orbital reorganization to trigger the oxygen redox reaction, unveiling a general requisite for the stable oxygen redox reaction in high-capacity Na_2MO_3 cathodes.
Shin-ichi Nishimura - One of the best experts on this subject based on the ideXlab platform.
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Intermediate honeycomb ordering to trigger oxygen redox chemistry in layered battery electrode
Nature communications, 2016Co-Authors: Benoit Mortemard De Boisse, Guandong Liu, Shin-ichi Nishimura, Sai Cheong Chung, Hisao Kiuchi, Yoshihisa Harada, Jun Kikkawa, Yoshio Kobayashi, Masashi OkuboAbstract:Sodium-Excess Metal oxides Na2MO3 are appealing cathode materials for sodium-ion batteries. Here, the authors demonstrate that honeycomb-type cation ordering in Na2RuO3 triggers the oxygen redox reaction via frontier orbital reorganization, increasing the capacity by 1/3 compared with disordered Na2RuO3.
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Intermediate honeycomb ordering to trigger oxygen redox chemistry in layered battery electrode
Nature Communications, 2016Co-Authors: Benoit Mortemard De Boisse, Guandong Liu, Shin-ichi Nishimura, Sai Cheong Chung, Hisao Kiuchi, Yoshihisa Harada, Jun Kikkawa, Yoshio Kobayashi, Masashi Okubo, Atsuo YamadaAbstract:Sodium-Excess Metal oxides Na_2MO_3 are appealing cathode materials for sodium-ion batteries. Here, the authors demonstrate that honeycomb-type cation ordering in Na_2RuO_3 triggers the oxygen redox reaction via frontier orbital reorganization, increasing the capacity by 1/3 compared with disordered Na_2RuO_3. Sodium-ion batteries are attractive energy storage media owing to the abundance of sodium, but the low capacities of available cathode materials make them impractical. Sodium-Excess Metal oxides Na_2MO_3 (M: transition Metal) are appealing cathode materials that may realize large capacities through additional oxygen redox reaction. However, the general strategies for enhancing the capacity of Na_2MO_3 are poorly established. Here using two polymorphs of Na_2RuO_3, we demonstrate the critical role of honeycomb-type cation ordering in Na_2MO_3. Ordered Na_2RuO_3 with honeycomb-ordered [Na_1/3Ru_2/3]O_2 slabs delivers a capacity of 180 mAh g^−1 (1.3-electron reaction), whereas disordered Na_2RuO_3 only delivers 135 mAh g^−1 (1.0-electron reaction). We clarify that the large extra capacity of ordered Na_2RuO_3 is enabled by a spontaneously ordered intermediate Na_1RuO_3 phase with ilmenite O1 structure, which induces frontier orbital reorganization to trigger the oxygen redox reaction, unveiling a general requisite for the stable oxygen redox reaction in high-capacity Na_2MO_3 cathodes.
