{"id":3341,"date":"2018-01-31T13:06:04","date_gmt":"2018-01-31T05:06:04","guid":{"rendered":"http:\/\/woodrefinery.com\/zhenfang\/?p=3341"},"modified":"2018-06-28T19:32:10","modified_gmt":"2018-06-28T11:32:10","slug":"biomass-derived-mesoporous-hf-containing-hybrid-for-efficient-meerwein-ponndorf-verley-reduction-at-low-temperatures","status":"publish","type":"post","link":"https:\/\/woodrefinery.com\/zhenfang\/biomass-derived-mesoporous-hf-containing-hybrid-for-efficient-meerwein-ponndorf-verley-reduction-at-low-temperatures\/","title":{"rendered":"Biomass-derived mesoporous Hf-containing hybrid for efficient Meerwein-Ponndorf-Verley reduction at low temperatures"},"content":{"rendered":"

\"\"<\/p>\n

A novel biomass-derived mesoporous bifunctional hybrid (FDCA-Hf) prepared by facile assembly of 2,5-furandicarboxylic acid (FDCA) with hafnium (Hf) was highly stable and active for the production of biofuels and valuable chemicals from bio-based compounds such as ketones, aldehydes and acidic oils via acid-base cooperative catalysis<\/strong><\/p>\n

Recently, Dr. Hu Li supervised by Prof. Zhen\u00a0\u00a0Fang\u00a0 designed and prepared\u00a0a\u00a0new porous and acid-base bifunctional hybrid (FDCA-Hf)\u00a0 by simple assembly of biomass-derived 2,5-furandicarboxylic acid (FDCA) with hafnium (Hf) under template-free conditions. The resulting FDCA-Hf hybrid with mesopores centered at 6.9 nm, moderate surface area (365.8 m2<\/sup>\/g) and acid-base couple sites (density: 0.51 vs<\/em> 0.97 mmol\/g, acid\/base molar ratio: 0.53), could selectively catalyze the Meerwein-Ponndorf-Verley reduction of carbonyl compounds under mild reaction conditions (as low as 90 \u00baC in a short time of 1 h), especially of ethyl levulinate to \u03b3<\/em>-valerolactone, in quantitative yields (95-100%) and relatively higher reaction rate (e.g., turnover frequency: 2.28 h-1<\/sup>) compared to other catalysts. Moreover, the efficient simultaneous (trans)esterification of Jatropha <\/em>oils with high acidic values to biodiesel (up to 98% yield) could also be achieved over FDCA-Hf with robust acid-base catalytic sites. The FDCA-Hf hybrid was highly stable due to the presence of robust metal-organic framework and could be resued with no decline in activity. Further studies demonstrated that the synergistic role of Lewis acid-base couple species (Hf4+<\/sup>\u2013O2\u2013<\/sup>) and Br\u00f8nsted acidic species (-OH) of FDCA-Hf contributed greatly to its pronounced catalytic activity.<\/p>\n

Related results were published:<\/p>\n

H Li , TT Yang, Zhen Fang<\/strong>*, Biomass-derived Mesoporous Hf-containing Hybrid for Efficient Meerwein-Ponndorf-Verley Reduction at Low Temperatures. Applied Catalysis B: Environmental<\/u> (IF 11.7), 227<\/strong><\/span>, 79\u201389 (2018<\/strong>).<\/p>\n

\u6700\u8fd1\uff0c\u56fd\u9645\u5b66\u672f\u671f\u520aApplied Catalysis B: Environmental\uff08\u7b2c\u4e00\u7f72\u540d\u5355\u4f4d\u4e3a\u5357\u4eac\u519c\u4e1a\u5927\u5b66\uff0c\u7b2c\u4e00\u4f5c\u8005\u4e3a\u535a\u58eb\u540e\u674e\u864e\uff0c\u901a\u8baf\u4f5c\u8005\u4e3a\u65b9\u771f\u6559\u6388\uff09\u53d1\u8868\u4e86\u751f\u7269\u71c3\u6599\u6700\u65b0\u7814\u7a76\u6210\u679c\u3002<\/p>\n

\u674e\u864e\u535a\u58eb\u901a\u8fc7\u7b80\u5355\u7684\u7ec4\u88c52,5-\u544b\u5583\u4e8c\u7532\u9178\uff08FDCA\uff09\u548c\u91d1\u5c5e\u94ea\uff08Hf\uff09\uff0c\u5236\u5907\u51fa\u4e00\u79cd\u65b0\u578b\u4ecb\u5b54\u53cc\u529f\u80fd\u7684\u6df7\u5408\u7269\uff08FDCA-Hf\uff09\uff0c\u5b83\u9ad8\u5ea6\u7a33\u5b9a\u548c\u6d3b\u8dc3\uff0c\u53ef\u7528\u4e8e\u9178\u78b1\u534f\u540c\u50ac\u5316\u751f\u7269\u57fa\u5316\u5408\u7269\u5982\u916e\uff0c\u919b\u548c\u9ad8\u9178\u503c\u6cb9\u4f4e\u6e29\u9ad8\u6548\u751f\u4ea7\u751f\u7269\u71c3\u6599\u548c\u6709\u4ef7\u503c\u7684\u5316\u5b66\u54c1\u3002<\/p>\n

\u8be6\u60c5\u53ef\u89c1\uff1a<\/p>\n

H Li , TT Yang, Zhen Fang<\/strong>*, Biomass-derived Mesoporous Hf-containing Hybrid for Efficient Meerwein-Ponndorf-Verley Reduction at Low Temperatures. Applied Catalysis B: Environmental<\/u> (IF 11.7), 227<\/strong><\/span>, 79\u201389 (2018<\/strong>).<\/p>\n","protected":false},"excerpt":{"rendered":"

A novel biomass-derived mesoporous bifunctional hybrid […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/posts\/3341"}],"collection":[{"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/comments?post=3341"}],"version-history":[{"count":4,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/posts\/3341\/revisions"}],"predecessor-version":[{"id":3490,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/posts\/3341\/revisions\/3490"}],"wp:attachment":[{"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/media?parent=3341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/categories?post=3341"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/tags?post=3341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}