[2024年] [71] H. Hojo, M. Nakashima, S. Yoshizaki, H. Einaga "Lattice-plane-dependent Distribution of Ce3+ at Pt and CeO2 interfaces for Pt/CeO2 Catalysts" ACS Nano 18, 4775-4782 (2024).
[2023年] [70] S. Shigenobu, T. Sugiyama, H. Hojo, H. Einaga "Enhanced Benzene Oxidation of Sintered Pd/γ-Al2O3 Catalysts by SO2 Treatment" Catal. Lett. 153, 3423 (2023).
[69] T. Hamashima, T. Sugiyama, H. Hojo, H. Einaga "Microwave-assisted CO oxidation over LaNiO3 and Ce-promoted LaNiO3" J. Taiwan Inst. Chem. Eng. in press
[68] S. Konishi, D. Urushihara, T. Hayakawa, K. Fukuda, T. Asaka, K. Ishii, N. Naoda, M. Okada, H. Akamatsu, H. Hojo, M. Azuma, K. Tanaka "Confirmation of ferroelectricity, piezoelectricity, and crystal structure of the electronic dielectric TmFe2O4" Phys. Re. B 108, 014105 (2023).
[67] H. Takane, H. Izumi, H. Hojo, T. Wakamatsu, K. Tanaka, K. Kaneko "Effect of dislocations and impurities on carrier transport in α-Ga2O3 on m-plane sapphire substrate" J. Mater. Res.38, 2645 (2023).
[66] S. Ding, C. Zhu, H. Hojo, H. Einaga "Insights into the Effect of Cobalt Substitution into Copper-Manganese Oxides on Enhanced Benzene Oxidation Activity" Appl. Catal. B: Environ. 323, 122099 (2023).
[65] H. Hojo, Y. Inohara, R. Ichitsubo, H. Einaga "Catalytic properties of LaNiO3 and Mn-modified LaNiO3 catalysts for oxidation of CO and benzene" Catal. Today 410, 127-134 (2023).
[64] H. Hojo, K. Hirota, S. Ito, H. Einaga "Reduction Mechanism for CeO2 Revealed by Direct Observation of the Oxygen Vacancy Distribution in Shape-Controlled CeO2" Adv. Mater. Interfaces 10,2201954 (2022).
[2022年] [63] Z. Wang, C. Zhu, Z. Zitao, H. Hojo, H. Einaga "Enhanced Photocatalytic Benzene Oxidation to Phenol over Monoclinic WO3 Nanorods under Visible Light" ACS Catal. 12, 14976-14989 (2022).
[62] S. Shigenobu, H. Hojo, H. Einaga "Catalytic Oxidation of CO to CO2 over CeO2-Supported Pd-Cu catalysts under Dilute O2 Conditions" Ind. Eng. Chem. Res. 61,15856-15865 (2022).
[61] R. Aso, H. Hojo, Y. Takahashi, T. Akashi, Y. Midoh, F. Ichihashi, H. Nakajima, T. Tamaoka, K. Yubuta, H. Nakanishi, H. Einaga, T. Tanigaki, H. Shinada, Y. Murakami "Direct identification of the charge state in a single platinum nanoparticle on titanium oxide" Science 378,202-206 (2022).
[60] S. Ding, H. Hojo, H. Einaga "Microwave-assisted removal of benzene with high efficiency on cobalt modified copper-manganese spinel oxides" J. Environ. Chem. Eng. 10,108212 (2022).
[59] C. Zhu,H. Hojo, H. Einaga "Insight into the Hydrogenolysis Mechanism of Diphenyl Ether over Cl-Modified Pt/γ-Al2O3 Catalysts by Experimental and Theoretical Studies" ACS Sus. Chem. Eng. 10,8897-8907 (2022).
[58] X. Liu, Y. Chang, S. Matsushima, T. Sugiyama, H. Hojo, H. Einaga "Rational design of Cu-doped ZnS nanosheres for photocatalytic evolution of H2 with visible light" ACS Appl. Electron Mater. 5,1849-1857 (2022).
[57] F. Ichihashi, A. Koyama, T. Akashi, S. Miyauchi, K. Morooka, H. Hojo, H. Einaga, Y. Takahashi, T. Tanigaki, H. Shinada, Y. Murakami "Automatic electron hologram acquisition of catalyst nanoparticles using particle detection with image processing and machine leraning" Appl. Phys. Lett. 120,064103 (2022).
[56] H. Li, M. Shibuta, T. Yamada, H. Hojo, H.S. Kato, T. Teranishi, M. Sakamoto "Band Engineering-Tuned Localized Surface Plasmon Resonance in Diverse-Phased Cu2-xSySe1-y" J. Phys. Chem C 126,8107-8112 (2022).
[55] H. Hojo, M. Gondo, S. Yoshizaki, H. Einaga "Atomic and electronic structure of Pt/TiO2 catalysts and their relationship to catalytic activity" Nano Lett.22, 145-150 (2022).
[54] S. Ding, C. Zhu,H. Hojo, H. Einaga "Enhanced catalytic performance of spinel-type Cu-Mn oxides for benzene oxidation under microwave irradiation" J. Hazar. Mater. 424, 127723 (2022).
[53] Z. Wang, H. Hojo, H. Einaga "One-step oxidation of benzene to phenol with H3PW12O40 under photoirradiation: Effect of operating conditions" Chem. Eng. J. 427, 131369 (2022).
[52] J. Zhao, X. Wang, X. Shen, C.J. Sahle, C. Dong, H. Hojo, Y. Sakai, J. Zhang, W. Li, L. Duan, T-S. Chan, C-T. Chen, J. Falke, C-E. Liu, C-Y. Kuo, Z. Deng, X. Wang, R. Yu, R. Yu, Z. Hu, M. Greenblatt, C. Jin "Magnetic ordering and structural transition in the ordered double-perovskite Pb2NiMoO6" Chem. Mater. 34, 97-106 (2022).
[2021年] [51] C. Zhu, S. Ding, H. Hojo, H. Einaga "Controlling diphenyl ether hydrogenolysis selectivity by tuning the Pt support and H-donors under mild conditions" ACS Catal. 11, 12661-12672 (2021).
[50] X. Liu, S. Ding, S. Shigenobu, H. Hojo, H. Einaga "Catalyst design of Pt/TiO2 microsphere for benzene oxidation under microwave irradiation" Catal. Today 376, 285-291 (2021).
[49] Z. Wang, H. Hojo, H. Einaga "Phtocatalytic hydroxylation of benzene to phenol with dioxygen using sodium decatungstate" Molec. Catal. 515, 111933 (2021).
[48] A.Doi, K. Obata, S. Matsushima, H. Hojo, H. Einaga "Fabrication and characterization of La-added MgFe2O4 as catalyst support for CO oxidation" Ceram. Int. 47, 32786-32793 (2021).
[47] R. Khobragade, G. Saravanan, H. Einaga, H. Nagashima, P. Shukla, T. Gupta, A.K. Agarwal, N. Labhasetwar "Diesel fuel particulate emission control using low-cost catalytic materials" Fuel 302, 1211577 (2021).
[46] K. Shimizu, H. Hojo, M. Azuma "Enhanced piezoelectric response in orientation-controlled BiFe1-xGaxO3 thin films" ACS Appl. Electron Mater 3, 4459-4464 (2021).
[45] A. Koyama, S. Miyauchi, K. Morooka, H. Hojo, H. Einaga, and Y. Murakami "Analysis of TEM images of metallic nanoparticles using convolutional neural networks and transfer learning" J. Mag. Mag. Mater. 538, 168225 (2021).
[44] M. Fukuda, I. Yamada, H. Hojo, C. Takahashi, Y. Yoshida, K. Tanaka, M. Azuma, K. Fujita "Topochemical synthesis of perovskite-type CuNb2O6 with colossal dielectric constant" J. Mater. Chem. C 9, 13981-13990 (2021).
[43] M. Azuma, H. Hojo, K. Oka, H. Yamamoto, K. Shimizu, K. Shigematsu, Y. Sakai "Functional Transition Metal Perovskite Oxides with 6s2 Lone Pair Activity Stabilized by High-Pressure Synthesis" Annu. Rev. Mater. Res. 52, 329-349 (2021).
[42] X. Ye, J. Zhao, H. Das, D. Sheptyakov, J. Yang, Y. Sakai, H. Hojo, Z. Liu, L. Zhou, L. Cao, T. Nishikubo, S. Wakazaki, C. Dong, X. Wang, Z. Hu, H.-J. Lin, C.-T. Chen, C. Sahle, A. Efiminko, H. Cao, S. Calder, K. Mibu, M. Kenzelmann, L.H. Tjeng, R. Yu, M. Azuma, C. Jin, Y. Long "Observation fo novel charge ordering and spin reorientation in perovskite oxide PbFeO3" Nature Commun. 12, 1917 (2021).
[41] Z. Pan, M.-H. Zhang, T. Nishikubo, Y. Sakai, H. Yamamoto, H. Hojo, M. Fukuda, L. Hu, H. Ishizaki, S. Kaneko, S. Kawaguchi, J. Koruza, J. Rödel, M. Azuma "Polarization rotation at morphotropic phase boundary in new lead-free Na1/2Bi1/2V1-xTixO3 piezoceramics" ACS Appl. Mater. Inter. 13,5204-5215 (2021).
[2020年] [40] X. Liu, Y. Zhang, S. Matsushima, H. Hojo, H. Einaga "Photocatalytic Oxidation process for treatment of gas phase benzene using Ti3+ self-doped TiO2 microsphere with sea urchin-like structure" Chem. Eng. J. 402, 126220 (2020).
[39] M. Fukuda, I. Yamada, H. Murata, H. Hojo, O.J. Hermandez, C. Ritter, K. Tanaka, and K. Fujita "Perovskite-Type CuNbO3 Exhibiting Unusual Noncollinear Ferrielectric to Collinear Ferroelectric Dipole Order Transition" Chem. Mater. 32, 5016-5027 (2020).
[38] X. Liu, S. Ding, S. Shigenobu, H. Hojo, and H. Einaga "Catalyst Design of Pt/TiO2 Microsphere for Benzene Oxidation under Microwave Irradiation" Catal. Today,in press
[37] R. Qi, P. Yu, J. Zhang, W. Guo, Y. He, H. Hojo, H. Einaga, Q. Zhang, X. Liu, Z. Jiang, and W. Shangguan "Efficient Visible Light Photocatalysis Enabled by the Interaction between Dual Cooperative Defect Sites" Appl. Catal. B: Environ.274, 119099/1-12 (2020).
[36] S. Yasuhara, Y. Hamasaki, T. Katayama, T. Ao, Y. Inaguma, H. Hojo, M. Karppinen, A. Philip, S. Yasui, and M. Itoh "Modulating the Structure and Magnetic Properties of ε-Fe2O3 Nanoparticles via Electrochemical Li+ Insertion" Inorg. Chem.59, 4375-4365 (2020).
[2019年] [35] T. Nishikubo, Y. Sakai, K. Oka, T. Watanuki, A. Machida, M. Mizumaki, K. Maebayashi, T. Imai, T. Ogata, K. Yokoyama, Y. Okimoto, S. Koshihara, H. Hojo, T. Mizokawa, and M. Azuma "Enhanced Negative Thermal Expansion Induced by Simultaneous Charge Transfer and Polar-Nonpolar Transitions" J. Am. Chem. Soc.141, 19397-19403 (2019).
[34] Z. Pan, J. Chen, R. Yu, L. Patra, P. Ravindran, A. Sanson, R. Milazzo, A. Carnera, L. Hu, L. Wang, H. Yamamoto, Y. Ren, Q. Huang, Y. Sakai, T. Nishikubo, T. Ogata, X. Fan, Y. Li, G. Li, H. Hojo, M. Azuma, and X. Xing, "Large Negative Thermal Expansion Induced by Synergistic Effects of Ferroelectrostriction and Spin Crossover in PbTiO3‐Based Perovskites" Chem. Mater.31, 1296-1303 (2019).
[33] K. Shimizu, R. Kawabe, H. Hojo, H. Shimizu, H. Yamamoto, M. Katsumata, K. Shigematsu, K. Mibu, Y. Kumagai, F. Oba, and M. Azuma "Direct observation of magnetization reversal by electric field at room temperature in Co-substituted bismuth ferrite thin film" Nano Lett.19, 1767-1773 (2019).
[32] G. Hasegawa, M. Tanaka, J.J.M. Vequizo, A. Yamakata, H. Hojo, M. Kobayashi, M. Kakihana, M. Inada, H. Akamatsu, and K. Hayashi "Sodium Titanium oxide bronze nanoparticles synthesized via concurrent reduction and Na+-doping into TiO2(B)" Nanoscale 11, 1442 (2019).
[31] S. Hamada, H. Hojo, and H. Einaga "Effect of Catalyst composition and reactor configuration on benzene oxidation with a nonthermal plasma-catalyst combined reactor" Catal. Today 332, 144-152 (2019).
[30] H Guo, Z Zhang, H Hojo, M Chen, H Einaga, and W Shangguan "Catalytic removal of benzene at mild temperature over manganese oxide catalysts" Catal. Surv. Asia 23, 199-209 (2019).
[29] H Guo, X Liu, H Hojo, X Yao, H Einaga, and W Shangguan "Removal of benzene by non-thermal plasma catalysis over manganese oxides through a facile synthesis method" Environ. Sci. Pollut. Res. 26, 8237-8247 (2019).
[2018年] [28] H. Hojo, K. Oka, K. Shimizu, H. Yamamoto, R. Kawabe, and M. Azuma "Development of Bismuth Ferrite as a Piezoelectric and Multiferroic material" Adv. Mater.30, 1705665 (2018). (Progress Report)
[27] K. Shigematsu, T. Asakura, H. Yamamoto, K. Shimizu, M. Katsumata, H. Shimizu, Y. Sakai, H. Hojo, K. Mibu, and M. Azuma "Room Temperature Ferromagnetism in BiFe1-xMnxO3 Thin Film Induced by Spin-Structure Manipulation" Appl. Phys. Lett.112, 192905 (2018).
[26] M. Azuma, Y. Sakai, T. Nishikugo, M. Mizumaki, T. Watanuki, T. Mizokawa, K. Oka, H. Hojo, and M. Naka "Systematic charge distribution change in Bi- and Pb-3d transition metal perovskites" Dalton Trans.47, 1371 (2018). (Review)
[2017年] [25] L. Zhou, J. Dai, Y. Chai, H. Zhang, S. Dong, H. Cao, S. Calder, Y. Yin, X. Wang, X. Shen, Z. Liu, T. Saito, Y. Shimakawa, H. Hojo, Y. Ikuhara, M. Azuma, Z. Hu, Y. Sun, C. Jin, and Y. Long "Realization of Large Electric Polarization and Strong Magnetoelectric Coupling in BiMn3Cr4O12" Adv. Mater. 29, 1703435 (2017).
[24] J. Yang, J. Dai, Z. Liu, R. Yu, H. Hojo, Z. Hu, T. Pi, Y. Soo, C. Jin, M. Azuma, and Y. Long "High-Pressure Synthesis of the Cobalt Pyrochlore Oxide Pb2Co2O7 with Large Cation Mixed Occupancy" Inorg. Chem. 56, 11676 (2017).
[23] Y. Sakai, J. Yang, R. Yu, H. Hojo, I. Yamada, P. Miao, S. Lee, S. Torii, T. Kamiyama, M. Lezaic, G. Bihlmayer, M. Mizumaki, J. Komiyama, T. Mizokawa, H. Yamamoto, T. Nishikubo, Y. Hattori, K. Oka, Y. Yin, J. Dai, W. Li, S. Ueda, A. Aimi, D. Mori, Y. Inaguma, Z. Hu, T. Uozumi, C. Jin, Y. Long, and M. Azuma "A-site and B-site charge orderings in an s-d level controlled perovskite oxide PbCoO3" J. Am. Chem. Soc. 139, 4574 (2017).
[22] H. Hojo, R. Kawabe, K. Shimizu, H. Yamamoto, K. Mibu, K. Samanta, T. Saha-Dasgupta, and M. Azuma "Ferromagnetism at Room Temperature Induced by Spin Structure Change in BiFe1-xCoxO3 Thin Films" Adv. Mater. 29, 1603131 (2017).
[2016年] [21] K. Shimizu, H. Hojo, Y. Ikuhara, and M. Azuma "Enhanced piezoelectric response due to polarization rotation in cobalt-substituted BiFeO3 epitaxial thin films" Adv. Mater. 28, 8639 (2016).
[20] K. Oka, H. Hojo, M. Azuma, and K. Oh-ishi "A temperature-independent, large dielectric constant induced by vacancy and partial anion order in the oxyfluoride pyrochlore, Pb2Ti2O7-dF2" Chem. Mater. 28, 5554 (2016).
[19] R. Yu, N. Matsuda, K. Tominaga, K. Shimizu, H. Hojo, Y. Sakai, H. Yamamoto, K. Oka, and M. Azuma High-temperature monoclinic Cc phase with reduced c/a ratio in Bi-based perovskite compound BiZnTi1-xMnxO6” Inorg. Chem. 55, 6124 (2016).
[18] B. Feng, I. Sugiyama, H. Hojo, H. Ohta, N. Shibata, and Y. Ikuhara Atomic structures and oxygen dynamics of CeO2 grain boundaries” Sci. Rep. 6, 20288 (2016).
[2015年] [17] R. Yu, H. Hojo, T. Watanuki, M. Mizumaki, T. Mizokawa, K. Oka, HJ. Kim, A. Machida, K. Sakaki, Y. Nakamura, A. Agui, D. Mori, Y. Inaguma, M. Schlipf, K. Ruschchanskii, M. Lezaic, M. Matsuda, J. Ma, C. Stuart, M. Isobe, Y. Ikuhara, and M. Azuma Melting of Pb charge glass and simultaneous Pb-Cr charge transfer in PbCrO3 as the origin of volume collapse” J. Am. Chem. Soc. 137, 12719 (2015).
[16] R. Yu, H. Hojo, T. Mizoguchi, and M. Azuma A new LiNbO3-type polar oxide with closed-shell cations: ZnPbO3” J. Appl. Phys. 118, 094103 (2015).
[15] H. Yokota, T. Nozue, S. Nakamura, H. Hojo, M. Fukunaga, P-E. Janolin, J-M. Kiat, and A. Fuwa Ferroelectricity and weak ferromagnetism of hexagonal ErFeO3 thin films” Phys. Rev. B 92, 054101 (2015).
[14] R. Yu, H. Hojo, K. Oka, T. Watanuki, A. Machida, K. Shimizu, K. Nakano, and M. Azuma New PbTiO3-type giant tetragonal compound Bi2ZnVO6 and its stability under pressure” Chem. Mater. 27, 2012 (2015).
[13] K. Nabetani, Y Muramatsu, K. Oka, K. Nakano, H. Hojo, M. Mizumaki, A. Agui, Y. Higo, N. Hayashi, M. Takano, and M. Azuma "Suppression of temperature hysteresis in negative thermal expansion compound BiNi1-xFeO3 and zero-thermal expansion composite“ Appl. Phys. Lett.106, 061912 (2015).
[2014年以前] [12] S. Pyon, K. Kudo, J. Matsumura, H. Ishii, G. Matuo, M. Nohara, H. Hojo, K. Oka, M. Azuma, V.O. Garlea, K. Kodama, and S. Shamoto Superconductivity in Noncentrosymmetric Iridium Silicide Li2IrSi3“ J. Phys. Soc. Jpn. 83, 093706 (2014).
[11] H. Hojo, K. Onuma, Y. Ikuhara, and M. Azuma Structural evolution and enhanced piezoresponse in cobalt-substituted BiFeO3 thin films” Appl. Phys. Express 7, 091501 (2014).
[10] H. Hojo, K. Fujita, H. Ikeno, T. Matoba, T. Mizoguchi, I. Tanaka, T. Nakamura, Y. Takeda, T. Okane, and K. Tanaka Magnetic structures of FeTiO3-Fe2O3 solid solution thin films studied by soft X-ray magnetic circular dichroism and ab initio multiplet calculations” Appl. Phys. Lett. 104, 112408 (2014).
[9] H. Hojo, K. Onuma, Y. Ikuhara, and M. Azuma Effect of Oxygen Pressure on Electrical Properties of BiFe0. 9Co0. 1O3 Thin Films Prepared by Pulsed Laser Deposition” Jpn. J. Appl. Phys. 52, 09KD09 (2013).
[8] B. Feng, H. Hojo, T. Mizoguchi, H. Ohta, S.D. Findlay, Y. Sato, N. Shibata, T. Yamamoto, and Y. Ikuhara Atomic structure of a ∑3[110]/(111) grain boundary in CeO2” Appl. Phys. Lett. 100, 073109 (2012).
[7] H. Hojo, E. Tochigi, T. Mizoguchi, H. Ohta, N. Shibata, B. Feng, and Y. Ikuhara Atomic structure and strain field of threading dislocations in CeO2 thin films on yttria-stabilized ZrO2 Appl. Phys. Lett. 98, 153104 (2011).
[6] H. Hojo, T. Mizoguchi, H. Ohta, S.D. Findlay, N. Shibata, T. Yamamoto, and Y. Ikuhara "Atomic structure of a CeO2 grain boundary: The role of oxygen vacancies" Nano Lett. 10, 4668 (2010).
[5] H. Hojo, K. Fujita, T. Mizoguchi, K. Hirao, I. Tanaka, K. Tanaka, and Y. Ikuhara "Magnetic properties of ilmenite-hematite solid-solution thin films: Direct observation of antiphase boundaries and their correlation with magnetism" Phys. Rev. B 80, 075414 (2009).
[4] K. Tanaka, K. Fujita, S. Nakashima, H. Hojo, and T. Matoba "Magnetic properties of disordered ferrite and ilmenite-hematite thin films" J. Magn. Magn. Mater. 321, 818 (2009).
[3] H. Hojo, K. Fujita, K. Tanaka, and K. Hirao "Fabrication of p-type ferrimagnetic semiconductor thin films based on FeTiO3-Fe2O3 solid solution" J. Magn. Magn. Mater. 310, 2105 (2007).
[2] H. Hojo, K. Fujita, K. Tanaka, and K. Hirao "Room-temperature ferrimagnetic semiconductor 0.6FeTiO3-0.4Fe2O3 solid solution thin films" Appl. Phys. Lett. 89, 142503 (2006).
[1] H. Hojo, K. Fujita, K. Tanaka, and K. Hirao "Epitaxial growth of room-temperature ferrimagnetic semiconductor thin films based on the ilmenite-hematite solid solution" Appl. Phys. Lett. 89, 082509 (2006).