Hirotoshi Sakagami

Personal Information
Title Associate Professor
Department/Center School of Earth, Energy and Environmental Engineering - Applied Energy Course
Date of Birth 1971-11-10
Fax Number 0157-26-4973
Web Sites https://cee.civil.kitami-it.ac.jp/study/kankyohyoka-keisoku/
Classes Taught, Specializations
Specializations
Physical chemistry
Publication (Academic Papers)

Scientific Papers

Title / Publisher     Publish Date
Effects of rhodium dispersion on catalytic behavior of Rh/active carbon catalysts for H/D exchange reaction between CH4 and D2
Phys. Chem. Chem. Phys., 3, 10, 1930-1934
2001-05
Thermal stability of porous MoOx and its catalytic property for the conversion of 2-propanol
Appl. Catal. A: General, 213, 83-90
2001-05
H2-reduction of Pt/MoO3 to MoOx with a large surface area and its catalytic activities for the conversions of heptane and propa-2-ol
Phys. Chem. Chem. Phys., 3, 19, 4430-4436
2001-09
Formation of MoOx with a large surface area by H2 reduction of MoO3 in the presence of Pt
Microporous and Mesoporous Materials, 51, 155-164
2002-01
Effect of the flow rate of H2 in the reduction process on the physical and catalytic properties of H2-reduced Pt/MoO3
Bull. Chem. Soc. Jpn., 75, 5, 1165-1171
2002-05
Catalytic properties of H2-reduced MoO3 and Pt/zeolites for the isomerization of pentane hexane and heptane
Appl. Catal. A: General, 242, 267-274
2003-03
Pentane Isomerization over Molybdenum Oxide Prepared by H2 Reduction of a Hydrogen Molybdenum Bronze
Chem. Lett., 32, 6, 556-557
2003-06
H2-reduced Pt/MoO3 as a selective catalyst for heptane isomerization
Catalysis Today, 81, 31-42
2003-06
Comparison of the catalytic properties of H2-reduced Pt/MoO3 and of Pt/zeolites for the conversions of pentane and heptane
Appl. Catal. A: General, 248, 269-278
2003-08
Comparison of dinitrodiamminepalladium with palladium nitrate as a precursor for Pd/SiO2 with respect to catalytic behavior for ethane hydroformylation and carbon monoxide hydrogenation
Catal. Lett., 99, 3-4, 257-261
2005-02
H2 reduction of hydrogen molybdenum bronze to porous molybdenum oxide and its catalytic properties for the conversions of pentane and propan-2-ol
Appl. Catal. A: General, 284, 1-2, 123-130
2005-04
Lattice Expansion of Clathrate Hydrates of Methane Mixtures and Natural Gas
Angewandte Chemie International Edition, 44, 42, 6928-6931
2005-10
Reduction of HxMoO3 with different amounts oh hydrogen to high surface area molybdenum oxides
Appl. Catal. A: General, 297, 2, 189-197
2006-01
Structure and thermal expansion of natural gas clathrate hydrates
Chemical Engineering Science, 61, 8, 2313-2752
2006-01
The effects of Na loading on catalytic properties of H2-reducted Pt/MoO3 for Heptane isomerization
J. Catal., 263-303, 2, 241
2006-10
Coexistence of structure I and II gas hydrates in Lake Baikal suggesting gas sources from microbial and thermogenic origin
Geophys. Res. Lett., L24603, 33
2006-12
Estimation of Gas Composition and Cage Occupancies in CH4 - C2H6 Hydrates by CP-MAS 13C NMR Technique
Journal of the Japan Petroleum Institute, 50, 3, 132-138
2007-05
Reduction of MoO3 to Porous Molybdenum Oxides and Its Catalytic Properties for Alkane Isomerization
Journal of the Japan Petroleum Institute, 50, 5, 229-239
2007-09
Isotopic fractionation of methane and ethane hydrates between gas and hydrate phases
Geophysical research letters, 34, L21502
2007-11
Chemical composition of the pore waters in the bottom sediments of Lake Baikal
Russian Geology and Geophysics, 48, 11, 886-900
2007-11
Geochemistry of Pore Waters from Gas Hydrate-bearing Sediment Cores Retrieved at the Sea of Okhotsk
Journal of Geography, 118, 1, 194-206
2009-03
Isotopic Composition and CrystallographicPproperties of Gas Hydrate in the Sea of Okhotsk
Journal of Geography, 118, 1, 207-221
2009-03
Natural gas hydrates with locally different cage occupancies and hydration numbers in Lake Baikal
Geochem. Geophys. Geosyst., 10, Q05003, doi:10.1029/2009GC002473
2009-05
Effects of the amount of MoO3 on the catalytic properties of H2-reduced Pt/MoO3-SiO2 for heptane isomerization
Appl. Catal. A: General, 362, 40180, 51-72
2009-06
Gas hydrate forming fluids on the NE Sakhalin slope, Sea of Okhotsk
Geological Union, 319, 51-72
2009-08
Dissociation heat of mixed-gas hydrate composed of methane and ethane
Seppyo, 71, 5, 341-351
2009-09
Model of formation of double structure gas hydrates in Lake Baikal based on isotopic data
Geophysical Research Letters, 36, L18504, doi:10.1029/2009GL039805
2009-09
Characteristics of Natural Gas Hydrates Occurring in Pore-Spaces of Marine Sediments Collected from the Eastern Nankai Trough, off Japan
Energy Fuels, 23, 11, 5580-5586
2009-09
Isotopic composition of gas hydrates in subsurface sediments from offshore Sakhalin Island, Sea of Okhotsk
Geo-Mar. Lett., in press
2010-03
Molecular and isotopic characteristics of gas hydrate-bound hydrocarbons in southern and central Lake Baikal
Geo-Mar. Lett., in press
2010-03
Heptane isomerization over molybdenum oxides obtained by H2 reduction of HxMoO3 with different hydrogen contents
Appl. Catal. A: General, 389, 1-2, 52-59
2010-09
Concentration-depth Profiles of Trace Nickel and Vanadium in Lake Mashu and the Possible Input of Anthropogenically Derived Nickel and Vanadium from the Atmosphere
BUNSEKI KAGAKU, 59, 12, 1105-1111
2010-12
13C Chemical Shifts of Propane Molecules Encaged in Structure II Clathrate Hydrate
J. Phys. Chem. A, 115, 5, 643-647
2011-01
Development of determination method of trace nickel in natural water by ID-oxygen added nitrogen-MIP-MS with direct measurement of liquid-liquid extracted organic phase
Int. J. Environ. Anal. Chem., 91, 9, 811-820
2011-08
Molecular and isotopic composition of hydrate-bound gases and sediment gases by an improved headspace gas method at the southern basin of Lake Baikal
Geo-Marine Letters, 32, 5-6, 465-472
2012-11
Raman spectroscopic and calorimetric observations on natural gas hydrates obtained from southern and central Lake Baikal
Geo-Marine Letters, 32, 5-6, 416-426
2012-11
Possible variation in methane flux caused by gas hydrate formation off Sakhalin Island, Russia
Geo-Marine Letters, 32, 5-6, 525-534
2012-11
Soil properties of sediments obtained from sea and lake-bottom shallow type gas hydrate province - Evaluation of sample disturbance due to exsolution of dissolved gas in pore water -
7, 4, 503-516
2012-12
Chemical Shift Changes and Line Narrowing in 13C NMR Spectra of Hydrocarbon Clathrate Hydrates
J. Phys. Chem. A, 117, 20, 4108-4114
2013-04
Methane Clathrate Hydrates Formed within Hydrophilic and Hydrophobic Media: Kinetics of Dissociation and Distortion of Host Structure
J. Phys. Chem. C, 117, 14, 7081-7085
2013-04
Physical and catalytic properties of Pt/MoO3 reduced at different H2 flow rates
Applied Catalysis A: General, 470, 8-14
2014-01
Sequentially sampled gas hydrate water, coupled with pore water and bottom water isotopic and ionic signatures at the Kukuy mud volcano, Lake Baikal: ambiguous deep-rooted source of hydrate-forming water
Geo-Marine Letters, 34, 2-3, 241-251
2014-06
Distribution of butane in the host water cage of structure ii Clathrate hydrates
Chemistry - A European Journal, 20, 51, 17207-17213
2014-12
Structural properties of methane and butane mixed-gas hydrates
Chemical Engineering Science, 140, 10-15
2016-02
Synthesis of Dibenzosiloles via Platinum-Catalyzed Intramolecular Dehydrogenative Cyclization of 2-(Dialkylsilyl)biaryls
Chem. Lett., 45, 857-859
2016-08
Hydrogen and oxygen isotopic anomalies in pore waters suggesting clay mineral dehydration at gas hydrate-bearing Kedr mud volcano, southern Lake Baikal, Russia
Geo-Marine Letters, 38, 403-415
2018-07
CO2 capture from CH4–CO2 mixture by gas–solid contact with tetrahydrofuran clathrate hydrate
Chemical Physics, 53, 110863
2020-10
Effects of reduction conditions on the formation of porous MoOx from MoO3
Microporous and Mesoporous Materials, 310, 110586
2021-01
Slurry solvent content influence on electrode preparation, microstructure and performance
Journal of the Ceramic Society of Japan, 130, 10, 832-836
2022-10

Reference Papers

Title / Publisher Publish Date
Hydrate-Bearing Structures in the Sea of Okhotsk
EOS, Transactions, American Geophysical Union, 86, 2, 13-24
2005-01
Hydrogeochemical and isotopic signatures of gas hydrate-forming fluids offshore NE Sakhalin (the Sea of Okhotsk): Results from the CHAOS-2003 cruises
Proceedings of the Fifth International Conference on Gas Hydrates, 3, 931-936
2005-06
Some ion concentration profiles in pore water samples from gas hydrate-bearing sediments offshore Sakhalin
Proceedings of the Fifth International Conference on Gas Hydrates, 3, 1049-1051
2005-06
Video-camera observations of tiny gas bubbles in deep water
Proceedings of the Fifth International Conference on Gas Hydrates, 3, 1086-1088
2005-06
PHASE EQUILIBRIUM AND COMPARISON OF FORMATION SPEEDS OF CH4 AND CO2 HYDRATE BELOW THE ICE POINT
Proceedings of the Fifth International Conference on Gas Hydrates, 1, 274-278
2005-06
CP-MAS 13C-NMR study on the crystallographic structure on natural gas hydrate
Proceedings of the Fifth International Conference on Gas Hydrates, 2, 497-501
2005-06
Crystallographic Studies on Natural Gas Hydrates Using 13C -NMR
CHIKYU MONTHLY, 27, 12, 971-975
2005-11
Measurement of some ionic concentration in pore water samples from LV32 marine sediment cores offshore Sakhalin, Russia
CHIKYU MONTHLY, 27, 12, 901-905
2005-11
New Energy Resources・Methane Hydrates - about subsurface methane hydrates -
57, 12, 1235-1240
2005-12
Hydration number determinations of natural gas hydrates using 13C-NMR
Proceedings of the 2nd International Workshop on Gas Hydrate Studies and Other Related Topics -for the Future Energy and Environment Conciderations-, 97-102
2007-04
Chemical analysis of sediment cores offshore Sakhalin, Okhotsk Sea
Proceedings of the 2nd International Workshop on Gas Hydrate Studies and Other Related Topics -for the Future Energy and Environment Conciderations-, 57-59
2007-04
Gas fractionation experiments of CH4 and CO2 mixed-gas hydrate below freezing point of water
Proceedings of the 2nd International Workshop on Gas Hydrate Studies and Other Related Topics -for the Future Energy and Environment Conciderations-, 185-188
2007-04
A video-camera device for small bubble observations in deep water near gas hydrate accumulations
Proceedings of the 2nd International Workshop on Gas Hydrate Studies and Other Related Topics -for the Future Energy and Environment Conciderations-, 193-196
2007-04
Cage occupancies of natural gas hydrates encaging methane and ethane
Proceedings of the 6th International Conference on Gas Hydrates
2008-07
Fromation process of structure I and II gas hydrates discovered in Kukuy, Lake Baikal
Proceedings of the 6th International Conference on Gas Hydrates
2008-07
Chemical and isotopic characteristics of gas hydrate- and pore- water samples obtained from gas hydrate-bearing sediment cores retrieved from a mud volcano in the Kukuy canyon, Lake Baikal
Proceedings of the 6th International Conference on Gas Hydrates
2008-07
Isotopic and chemical composition of gas hydrate water samples retrieved at mud volcanoes in Lake Baikal, Russia
Proceedings of the International Workshop in Modern Science and Technology, 111-114
2008-11
Determination of Nickel in Natural Water by Solvent Extraction/Direct Introduction - Isotope Dilution Microwave Induced Oxygen - Nitrogen Plasma Mass Spectrometry
Proceedings of the International Workshop in Modern Science and Technology, 115-119
2008-11
Estimation of gas composition and cage occupancies in CH4-C2H6 hydrates by CP-MAS 13C NMR technique
PETROTECH, 32, 8, 555-559
2009-08
Isotopic fractionation of guest gases at the formation of gas hydrates in Lake Baikal
Snow and Ice in Hokkaido (a bulletin of the Hokkaido branch, Japanese Society of Snow and Ice), 28, 61-65
2009-08
Isotopic composition of hydrate-bound gases retrieved at Lake Baikal
Chikyu Monthly, 31, 9, 486-492
2009-09
Isotopic difference between hydrate-bound and sediment gases retrieved at Lake Baikal
Limnology and Freshwater Biology, 3, 1, 924
2020-09
Stable isotopic evidence for microbial ethane in Lake Baikal gas hydrates
Limnology and Freshwater Biology, 3, 1, 918
2020-09

Lecture Presentations

Title Publish Date
Stable isotopic evidence for microbial ethane in Lake Baikal gas hydrates
7th Vereshchagin Baikal Conference (online), Irkutsk, Russia
2020-09
Isotopic difference between hydrate-bound and sediment gases retrieved at Lake Baikal
7th Vereshchagin Baikal Conference (online), Irkutsk, Russia
2020-09
Hydrogen formation from natural methane hydrates collected off tokachi, the Pacific Ocean
12th International Conference on Environmental Catalysis (ICEC2022), Osaka, Japan
2022-08