%0 Journal Article
%T Hydroxyl Enhanced Structured Pt/Nix/a-AlOOH Catalyst for Formaldehyde Oxidation at Room Temperature
%A Shoudian Zhao
%A Qi Zhang
%A Guobing Zhao
%A Yuhua Zhang
%J Modern Research in Catalysis
%P 21-34
%@ 2168-4499
%D 2020
%I Scientific Research Publishing
%R 10.4236/mrc.2020.92002
%X Ni promoted structured plate-type Pt/Ni<sub>x</sub>/a-AlOOH catalysts
were developed to enhance the amount of hydroxyl group, therefore improving the
catalytic activities for formaldehyde oxidation at room temperature. The
analyzation results by XRD and HRTEM indicate that two kinds of materials,
AlOOH and NiOOH, are detected on the surface of Pt/Ni<sub>x</sub>/a-AlOOH. It
can be seen from the result of TG that the hydroxyl group on the catalyst
surface increased after Ni was loaded. Furtherly, XPS results show that the
percentage of hydroxyl groups which can effectively absorb formaldehyde
increases from 36.4% to 72.8% by doping Ni.<span><span><span style=\"font-family:\" capt\",serif;\"=\"\" pro=\"\" minion=\"\"> </span></span></span><span><span><span style=\"font-family:\" capt\",serif;\"=\"\" pro=\"\" minion=\"\">In
addition,</span></span></span><span><span><span style=\"font-family:\" capt\",serif;\"=\"\" pro=\"\" minion=\"\"> </span></span></span><span><span><span style=\"font-family:\" capt\",serif;\"=\"\" pro=\"\" minion=\"\">the content of Pt<sup>0</sup> increased from 27.5% to 45%. The results
indicate that optimized Pt<sub>1.15</sub>/Ni<sub>3.1</sub>/a-AlOOH has the best
catalytic activity with the CO<sub>2</sub> conversion is 88% at 25กใ</span></span></span><span><span><span style=\"font-family:\" capt\",serif;\"=\"\" pro=\"\" minion=\"\">C<span> and 100% at 40กใ</span>C<span>,</span></span></span></span><span><span><span style=\"font-family:\" capt\",serif;\"=\"\" pro=\"\" minion=\"\"> </span></span></span><span><span><span style=\"font-family:\" capt\",serif;\"=\"\" pro=\"\" minion=\"\">while CO<sub>2</sub> conversion over Pt<sub>1.2</sub>/a-AlOOH is 56% at 25กใ</span></span></span><span><span><span style=\"font-family:\" capt\",serif;\"=\"\" pro=\"\" minion=\"\">C<span> and 100% at 100กใ</span>C<span> respectively. Hence, the Ni promoted
plate-type Pt/a-AlOOH possesses high efficiency and it provides a new idea for
catalyst design of formaldehyde oxidation</span></span></span></span><span><span><span style=\"font-family:\" capt\",serif;\"=\"\" pro=\"\" minion=\"\">.</span></span></span>
%K Structured Catalyst
%K AlOOH
%K Formaldehyde
%K NiOOH
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=99472