方真教授团队:李虎博士在国际学术期刊Catalysis Today发表学术论文

發布時間:2018-05-14文章來源: 浏覽次數:

最近,国际学术期刊Catalysis Today(影响因子4.7, Q1,第一署名单位为南京农业大学,第一作者为博士后李虎,通讯作者为方真教授),发表了生物燃料最新研究成果。

該研究團隊通過組裝苯磷酸(PhP)和四氯化铪而制成一種酸堿雙官能團納米雜化苯磷酸MOF(金屬有機框架)催化劑,使用異丙醇作爲反應溶劑和氫供體,用于加氫催化糠醛(FUR)轉化爲糠醇(FFA)。在120℃反應2小時的條件下,FUR的轉化率爲99.2%,FFA産率爲97.6%,生成速率爲9760μmol/gh。FUR轉化的活化能(Ea)估計爲60.8KJ/mol,與金屬催化劑相比,其具有可與之媲美甚至更低的活化能。PhP-Hf(1:1.5;苯磷酸-铪納米MOF)顯著的催化活性得益于其溫和的酸性和相對強的堿性。PhP-Hf(1:1.5)催化劑可連續重複使用5次。

詳情可見:

H Li, Y Li, Zhen Fang*, RL Smith Jr., Efficient Catalytic Transfer Hydrogenation of Biomass-Based Furfural to Furfuryl Alcohol with Recycable Hf-Phenylphosphonate Nanohybrids, Catalysis Today, https://doi.org/10.1016/j.cattod.2018.04.056, 2018.

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Recently, Dr. Hu Li supervised by Profs. Zhen FANG and RL Smith has synthesized an acid-base bifunctional nanohybrid phenylphosphonic acid (PhP) – hafnium (1:1.5) through assembly of PhP with HfCl4 for catalytic transfer hydrogenation of furfural (FUR) to furfuryl alcohol (FFA) using 2-propanol as both reaction solvent and hydrogen donor source. An FFA yield of 97.6% with formation rate of 9760 μmol g-1 h-1 at 99.2% FUR conversion was obtained with the reaction system at 120?°C for 2?h reaction time. Activation energy (Ea) was estimated to be 60.8?kJ/mol with respect to FUR concentration, which is comparable with or even lower than Ea values attained over metal catalysts. The pronounced catalytic activity of PhP-Hf (1:1.5) is attributed to its moderate acidity and relatively strong basicity. The PhP-Hf (1:1.5) catalyst was demonstrated to maintain its activity for five consecutive reuse cycles.

Related results were published:

H Li, Y Li, Zhen Fang*, RL Smith Jr., Efficient Catalytic Transfer Hydrogenation of Biomass-Based Furfural to Furfuryl Alcohol with Recycable Hf-Phenylphosphonate Nanohybrids, Catalysis Today, https://doi.org/10.1016/j.cattod.2018.04.056, 2018.

Mesoporous PhP-Hf(1:1.5) nanohybrid material bearing acidic and basic sites promotes catalytic transfer hydrogenation of furfural to furfuryl alcohol with 97.6% yields with 2-propanol as solvent and hydrogen donor source at 120?°C in 2?h reaction time.

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