Mesoporous Bimetallic RhCu Alloy Nanospheres Using a Sophisticated Soft-Templating Strategy,Chemistry of Materials

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Mesoporous Bimetallic RhCu Alloy Nanospheres Using a Sophisticated Soft-Templating Strategy
Chemistry of Materials ( IF 7.2 ) Pub Date : 2018-01-10 00:00:00 , DOI: 10.1021/acs.chemmater.7b04307
Bo Jiang ₁ , Kenya Kani _{1,

2} , Muhammad Iqbal _{1,

3} , Hideki Abe ₄ , Tatsuo Kimura ₅ , Md. Shahriar A. Hossain ₂ , Oruganti Anjaneyulu ₄ , Joel Henzie ₁ , Yusuke Yamauchi _{2,

3,

6}

Affiliation

Mesoporous metals are useful for heterogeneous catalysis because their ultrapermeable architecture promotes mass transport to abundant active sites. Our group recently developed a method to manipulate the interior space of nanocrystals by synthesizing mesoporous Rh nanospheres that serve as high performance catalysts for methanol oxidation and nitric oxide (NO) remediation (Jiang, B.; et al. Nat. Commun. 2017, 8, 15581). Here, we extend this concept and propose a sophisticated soft-templating strategy to synthesize three-dimensional mesoporous bimetallic RhCu nanospheres. The nanospheres are alloys of Rh and Cu, and their compositions can be continuously tuned by varying the amount of metal precursors. The mesoporous RhCu nanospheres were examined for catalytic remediation of NO and show good catalytic performance considering the reduced economic cost of the alloyed material. This method offers a general approach for the precise design of high surface area Rh-based metal catalysts.

中文翻译：

使用复杂的软模板化策略的介孔双金属RhCu合金纳米球

介孔金属可用于多相催化，因为它们的超渗透性结构促进了物质向大量活性位点的传输。我们的小组最近开发了一种方法，通过合成介孔的Rh纳米球来操纵纳米晶体的内部空间，Rh纳米球可作为甲醇氧化和一氧化氮（NO）修复的高性能催化剂（Jiang，B .; et al。Nat。Commun。2017，8，15581）。在这里，我们扩展了这个概念，并提出了一种复杂的软模板化策略来合成三维中孔双金属RhCu纳米球。纳米球是Rh和Cu的合金，可以通过改变金属前体的数量来连续调整其组成。考虑到降低合金材料的经济成本，对介孔RhCu纳米球进行了NO的催化修复，并显示出良好的催化性能。该方法为高表面积Rh基金属催化剂的精确设计提供了一种通用方法。

更新日期：2018-01-10

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