Najib Abdillah Sani Bin Mohd, Peng Xiaobo, Hashimoto Ayako, Shoji Shusaku, Iida Takayuki, Bai Yunxing, Abe Hideki
National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki, 305-0044, Japan.
Graduate School of Science and Technology, Saitama University, Shimo-Okubo 255, Saitama, 338-8570, Japan.
Chem Asian J. 2019 Aug 16;14(16):2802-2805. doi: 10.1002/asia.201900542. Epub 2019 Jul 19.
Mesoporous precious metals with abundant active sites and high surface area have been widely recognized as high-performance catalytic materials. However, the templated synthesis is complex and costly. Herein, we report a mesoporous rhodium (m-Rh) that can be readily synthesized from entangled nanofibres of Rh and Y O without templates. The entangled nanofibres, prepared from uniform Rh-Y alloys under redox atmosphere, were the key precursor in the synthesis processes. Moreover, the m-Rh efficiently catalyzed carbon dioxide reforming of methane (DRM) at a low reaction temperature of 683 K. Further, electrochemical methods of CO electro-oxidation were innovatively used to demonstrate the stability of CO and oxygen species for the DRM reaction.
具有丰富活性位点和高比表面积的介孔贵金属已被广泛认为是高性能催化材料。然而，模板合成复杂且成本高昂。在此，我们报道了一种介孔铑（m-Rh），它可以在无模板的情况下由铑和钇的纳米纤维缠结物轻松合成。在氧化还原气氛下由均匀的铑-钇合金制备的缠结纳米纤维是合成过程中的关键前驱体。此外，m-Rh在683 K的低温下高效催化甲烷二氧化碳重整（DRM）反应。此外，创新性地采用电化学方法进行CO电氧化，以证明DRM反应中CO和氧物种的稳定性。
