Highly selective hydrogenation of furfural to furfuryl alcohol over Pt nanoparticles supported on g-C3N4 nanosheets catalysts in water.
Highly selective hydrogenation of furfural to furfuryl alcohol over Pt nanoparticles supported on g-C3N4 nanosheets catalysts in water.
复制标题
g-C3N4 纳米片负载 Pt 纳米粒子在水中高选择性加氢糠醛生成糠醇
DOI：
10.1038/srep28558
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发表时间：
2016-06-22
影响因子：
4.6
通讯作者：
Mu X
中科院分区：
文献类型：
--
作者：
Chen X;Zhang L;Zhang B;Guo X;Mu X
以石墨化氮化碳纳米片为载体，研究了糠醛选择加氢制糠醇的Pt催化剂。采用简单的绿色方法，在空气中对g-C3 N4块体进行热氧化刻蚀，制备出平均厚度约为3 nm的纳米片。结合富氮和局部共轭结构的独特特性，具有142 m2 g − 1的高比表面积的g-C3 N4纳米片被证明是负载小尺寸Pt纳米颗粒的优良载体。结果表明，g-C3 N4纳米片负载Pt催化剂具有良好的上级糠醛加氢活性，糠醛完全转化，糠醇选择性高达99%. Pt纳米粒子的大比表面积、均匀分散性和纳米片对糠醛的较强吸附能力使其具有良好的催化性能。重复使用试验表明，该催化剂在糠醛加氢反应中保持了较高的活性和稳定性。
Graphitic carbon nitride nanosheets were investigated for developing effective Pt catalyst supports for selective hydrogenation of furfural to furfuryl alcohol in water. The nanosheets with an average thickness of about 3 nm were synthesized by a simple and green method through thermal oxidation etching of bulk g-C3N4in air. Combined with the unique feature of nitrogen richness and locally conjugated structure, the g-C3N4nanosheets with a high surface area of 142 m2g−1were demonstrated to be an excellent supports for loading small-size Pt nanoparticles. Superior furfural hydrogenation activity in water with complete conversion of furfural and high selectivity of furfuryl alcohol (99%) was observed for g-C3N4nanosheets supported Pt catalysts. The large specific surface area, uniform dispersion of Pt nanoparticles and the stronger furfural adsorption ability of nanosheets contributed to the considerable catalytic performance. The reusability tests showed that the novel Pt catalyst could maintain high activity and stability in the furfural hydrogenation reaction.