Institution
Tokyo University of Science
Education•Tokyo, Japan•
About: Tokyo University of Science is a education organization based out in Tokyo, Japan. It is known for research contribution in the topics: Thin film & Enantioselective synthesis. The organization has 15800 authors who have published 24147 publications receiving 438081 citations. The organization is also known as: Tōkyō Rika Daigaku & Science University of Tokyo.
Papers published on a yearly basis
Papers
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TL;DR: In this article, a stage-1 KC 8 compound is formed by electrochemical reduction at the potential approaching to K + /K standard potential which is lower than that of Li + /Li.
826 citations
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01 Jun 2010TL;DR: In this article, the authors introduce the concept of dark energy as a modified form of matter in the form of a modified quintessence and show that dark energy is a modification of gravity.
Abstract: 1. Overview 2. Expansion history of the universe 3. Correlation function and power spectrum 4. Basics of cosmological perturbation theory 5. Observational evidence of dark energy 6. Cosmological constant 7. Dark energy as a modified form of matter I: quintessence 8. Dark energy as a modified form of matter II 9. Dark energy as a modification of gravity 10. Cosmic acceleration without dark energy 11. Dark energy and linear cosmological perturbations 12. Non-linear cosmological perturbations 13. Statistical methods in cosmology 14. Future observational constraints on the nature of dark energy 15. Conclusion and outlook 16. Answers to the problems 17. Mathematical appendix Index.
802 citations
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TL;DR: In this paper, a facile single-step photocatalytic reaction was used to improve the photoresponse of BiVO4 with reduced graphene oxide (RGO) for photoelectrochemical water splitting.
Abstract: Bismuth vanadate (BiVO4) is incorporated with reduced graphene oxide (RGO) using a facile single-step photocatalytic reaction to improve its photoresponse in visible light. Remarkable 10-fold enhancement in photoelectrochemical water splitting reaction is observed on BiVO4−RGO composite compared with pure BiVO4 under visible illumination. This improvement is attributed to the longer electron lifetime of excited BiVO4 as the electrons are injected to RGO instantly at the site of generation, leading to a minimized charge recombination. Improved contact between BiVO4 particles with transparent conducting electrode using RGO scaffold also contributes to this photoresponse enhancement.
802 citations
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TL;DR: In this article, Mn-, Ru-, Rh-, and Ir-doped SrTiO3 possessed intense absorption bands in the visible light region due to excitation from the discontinuous levels formed by the dopants to the conduction band of the host.
Abstract: Mn-, Ru-, Rh-, and Ir-doped SrTiO3 possessed intense absorption bands in the visible light region due to excitation from the discontinuous levels formed by the dopants to the conduction band of the SrTiO3 host. Mn- and Ru-doped SrTiO3 showed photocatalytic activities for O2 evolution from an aqueous silver nitrate solution while Ru-, Rh-, and Ir-doped SrTiO3 loaded with Pt cocatalysts produced H2 from an aqueous methanol solution under visible light irradiation (λ > 440 nm). The Rh(1%)-doped SrTiO3 photocatalyst loaded with a Pt cocatalyst (0.1 wt %) gave 5.2% of the quantum yield at 420 nm for the H2 evolution reaction.
788 citations
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TL;DR: In this article, the authors showed that the activity of a photocatalyst with antimony and chromium was remarkably higher than that of one with only chromium and that the charge balance was kept by codoping of Sb5+ and Cr3+ ions, resulting in the suppression of formation of Cr6+ ions and oxygen defects in the lattice.
Abstract: TiO2 and SrTiO3 codoped with antimony and chromium showed intense absorption bands in the visible light region and possessed 2.2 and 2.4 eV of energy gaps, respectively. TiO2 codoped with antimony and chromium evolved O2 from an aqueous silver nitrate solution under visible light irradiation, while SrTiO3 codoped with antimony and chromium evolved H2 from an aqueous methanol solution. The activity of TiO2 photocatalyst codoped with antimony and chromium was remarkably higher than that of TiO2 doped with only chromium. It was due to that the charge balance was kept by codoping of Sb5+ and Cr3+ ions, resulting in the suppression of formation of Cr6+ ions and oxygen defects in the lattice which should work as effectively nonradiative recombination centers between photogenerated electrons and holes.
782 citations
Authors
Showing all 15878 results
Name | H-index | Papers | Citations |
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Kazunori Kataoka | 138 | 908 | 70412 |
Yoichiro Iwakura | 129 | 705 | 64041 |
Kouji Matsushima | 124 | 590 | 56995 |
Masaki Ishitsuka | 103 | 624 | 39383 |
Shinsuke Tanabe | 98 | 722 | 37445 |
Tatsumi Koi | 97 | 411 | 50222 |
Hirofumi Akagi | 94 | 618 | 43179 |
Clifford A. Lowell | 91 | 258 | 23538 |
Teruo Okano | 91 | 605 | 28346 |
László Á. Gergely | 89 | 426 | 60674 |
T. Sumiyoshi | 88 | 855 | 62277 |
Toshinori Nakayama | 86 | 405 | 25275 |
Akihiko Kudo | 86 | 328 | 39475 |
Hans-Joachim Gabius | 85 | 699 | 28085 |
Motohide Tamura | 85 | 1007 | 32725 |