Mana Shimakawa’s research while affiliated with Doshisha University and other places

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Publications (3)


Fig. 1 Methane oxidation with O 2 over different metal catalysts supported on SAPO catalysts. a) CH 4 conversion, b) yield of HCHO, c) yield of CO and d) yield of H 2 .
Fig. 2 Methane oxidation with O 2 over Cu catalysts supported on different zeolites. a) CH 4 conversion, b) yield of HCHO, c) yield of CO and d) yield of H 2 .
Fig. 3 Methane oxidation with O 2 over Cu/SAPO catalysts with different Cu loadings. a) CH 4 conversion, b) yield of HCHO, c) yield of CO and d) yield of H 2 .
Fig. 4 Kinetic curves for CH 4 conversion (a) and yields of each product (b) in methane oxidation over the Cu(0.5 wt%)/SAPO catalyst at 923 K.
Fig. 5 Change of selectivity to each product as a function of W/F in methane oxidation over the Cu/SAPO catalyst at 923 K. a) selectivity to each product based on C, b) selectivity to each product based on H.

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Formation of HCHO, CO and H 2 by methane oxidation with O 2 over Cu catalysts stabilized in silicoaluminophosphates
  • Article
  • Full-text available

January 2025

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Catalysis Science & Technology

Mana Shimakawa

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Rieko Nagase

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Ryoya Kugo

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[...]

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Sakae Takenaka

The catalytic performance of Cu catalysts supported on SAPO34 (denoted as Cu/SAPO) for methane oxidation with O 2 has been investigated in detail.

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Citations (2)


... However, to the best of our knowledge, very little attention has been paid to copper(II) phosphate-based catalysts and their use in AOPs. This metal phosphate exhibits several desirable properties and has been successfully applied in methane oxidation 15 , selective oxidation of benzylic alcohols 16 and photocatalytic degradation of methylene blue 17 . However, there is no information on the use of this nanomaterial in Fenton-like and photo-Fenton-like processes aiming at the degradation of antibiotic pollutants. ...

Reference:

Copper(II) phosphate as a promising catalyst for the degradation of ciprofloxacin via photo-assisted Fenton-like process
Active and durable copper phosphate catalysts modified with metal oxides for methane oxidation with oxygen into formaldehyde
  • Citing Article
  • January 2023

Catalysis Science & Technology

... However, a bare HCHO yield (8.1 ± 0.5 μmol h -1 ) and a large amount of produced CO 2 (80.0 ± 1.6 μmol h -1 ) over Ag NP -ZnO sample are achieved, indicating that the presence of Ag NPs leads to the overoxidation of CH 4 . The HCHO yield obtained from the gas-solid photothermal catalytic oxidation of CH 4 over Ag 1 -ZnO under atmospheric pressure is not only higher than all reported photocatalytic systems (Supplementary Table 14) [11][12][13][14][15]17,18,22,23,25,26 , but also still possesses superiority compare to traditional high-pressure and hightemperature catalytic reaction systems (Supplementary Table 15) [27][28][29][30][31][32][33][34][35] . ...

Superior Performance of Copper Phosphate α-Cu 2 P 2 O 7 Catalysts for Partial Oxidation of Methane into Formaldehyde
  • Citing Article
  • March 2022

Chemistry Letters