2021/10/30

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2021/09/09

ギャラリー，About(研究室について)を更新しました．HPのレイアウト等のデザインも適宜修正中ですので，表示が崩れている場合は，時間をおいてアクセスしてみて下さい． 管理人　石井...続きを読む »

2021/08/20

Benzene hydrogenation activities of Ni catalyst supported on N- and B-doped carbons https://www.sciencedirect.com/science/article/pii/S0925963521003137?via%3Dihub A catalyst support can improve the catalytic activity of metal catalysts, and this phenomenon is well known as the support effect. The effective use of this support effect is considered important for improving catalytic activity. However, the factors affecting this phenomenon are complex. It is, therefore, important to understand the interaction between the support and metal catalyst as well as the surface characteristics of the supp...続きを読む »

2021/07/06

研究室学生の写真，発表論文リスト(publication)を更新しました．...続きを読む »

2021/05/24

Direct conversion of lignin to high-quality graphene-based materials via catalytic carbonization https://pubs.rsc.org/en/content/articlelanding/2021/RA/D1RA02491D#!divAbstract Methods for effectively utilizing lignin are necessary for the realization of a sustainable society. Herein, we report a method for directly converting lignin to graphene-based materials. Fe-supported lignin is prepared by dissolving lignin in an aqueous FeCl2 solution, followed by freeze drying. Graphene is then produced by catalytically carbonizing this Fe-supported lignin at 1200 °C. The characteristics of both the Fe...続きを読む »

2020/12/11

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2020/11/28

Quantitative analysis of the formation mechanism of tightly bound rubber by using carbon-coated alumina nanoparticles as a model filler https://www.sciencedirect.com/science/article/pii/S0008622320311532?via%3Dihub Using carbon-coated alumina nanoparticles as a model filler for styrene-butadiene rubber (SBR), rubber composites with different carbon surface chemistry were prepared and the bound rubber thus formed in each composite was analyzed in relation to the carbon surface chemistry. The present approach provides quantitative understanding of the rubber-carbon interface at the molecular lev...続きを読む »

2020/03/24

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2020/01/24

Understanding the chemical structure of carbon edge sites by using deuterium-labeled temperature-programmed desorption technique https://www.sciencedirect.com/science/article/pii/S0008622320300865?via%3Dihub A deuterium-labeled temperature-programmed desorption (TPD) technique was developed to accurately characterize functional groups on the surface of carbon-based materials. After the protic hydrogen of the functional groups on activated carbons was substituted by deuterium, TPD analysis revealed the desorption of deuterium compounds (D2O, DHO, D2, DH). The functional groups were estimated fr...続きを読む »

2019/11/28

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