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doi: 10.3850/978-981-08-7614-2_IMPRES024
On-paper Synthesis of Nickel Nanocatalysts and Hydrogen Production for Fuel Cells
Shin Miura, Hirotaka Koga, Takuya Kitaokaa and Hiroyuki Wariishi
Department of Agro-environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
atkitaoka@agr.kyushu-u.ac.jp
ABSTRACT
Nickel nanoparticles (NiNPs) were successfully synthesized in situ on a microstructured paper matrix composed of inorganic fibers as the main framework and zinc oxide (ZnO) whiskers as a preferential support for NiNPs. The paperlike inorganic fiber/ZnO whisker composites were prepared using a high-speed and low-cost papermaking technique, and then simply immersed in an aqueous solution of Ni(NO3)2. After reduction in H2 flow, NiNPs with a fine size about 20 nm were selectively formed on the ZnO whiskers. As-prepared NiNPs@ZnO paper is much like an ordinary paper product, flexible, lightweight and easy to handle. The NiNPs@ZnO paper composite exhibited excellent catalytic performance in steam reforming of propane, and produced hydrogen more efficiently than commercial pellet-type nickel catalyst. These results are possibly attributed to highly-active NiNPs and uniform mass/heat flow in a microporous paper structure.
Keywords: Metal nanoparticle, Catalyst, Hydrogen, In situ synthesis, Propane steam reforming.
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