![\"\"](\"https:\/\/woodrefinery.com\/zhenfang\/wp-content\/uploads\/2017\/03\/chemsuschem.jpg\")
\nZirconium-xylylenediphosphonate nanohybrids, a class of unconventional metal-organic frameworks (UMOFs), are simply synthesized to have unique properties and are highly active for prodcuing biofules and chemicals via catalytic transfer hydrogenation<\/strong><\/p>\n
Catalytic transfer hydrogenation (CTH) is a sustainable and selective way to increase the hydrogen content of unsaturated molecules for producing either biofuels or valuable chemicals. Dr. Hu Li, a postdoctoral student, supervised by Profs. Song Yang (Guizhou university) and Zhen Fang prepared a series of mesoporous and orderly layered nanohybrids for the first time via simple and template-free assembly of zirconium with different xylylenediphosphonates. It was found that m-PhPZr nanoparticles (ca. 20-50 nm) with mesopores centered at 7.9 nm, and high molar ratio of Lewis acid to base sites (1:0.7) exhibited superior performance in CTH of ketones and biomass-derived aldehydes to corresponding alcohols with almost quantitative yields under mild conditions (as low as 82 \u00baC), especially in CTH of ethyl levulinate to the biofuel additive \u03b3-valerolactone (up to 98% yield). It also showed high activity in one-pot production of biodiesel (with 89% yield) from high acid value oil, and in 5-hydroxymethylfurfural production (with 56% yield) via isomerization and dehydration of glucose. The catalyst is stable with little Zr leaching and deactivation after 5 cycles. Lewis acidic (Zr) and basic (PO3) centers of the heterogeneous catalyst were revealed to play a synergistic role in CTH of carbonyl compounds, e.g., ethyl levulinate to \u03b3-valerolactone. Isotopic labeling experiments further indicated the occurrence of direct hydrogen transfer rather than metal hydride route.<\/p>\n
The study was published:
\nH Li, Zhen Fang*, J He, S Yang, Orderly Layered Zr-Benzylphosphonate Nanohybrids for Efficient Acid\/Base-Mediated Bifunctional\/Cascade Catalysis, ChemSusChem, 10, 681\u2013686\u00a0 (2017).<\/p>\n
———————————————————————- \u50ac\u5316\u8f6c\u79fb\u52a0\u6c22 \uff08CTH; Catalytic transfer hydrogenation\uff09 \u662f\u4e00\u79cd\u53ef\u6301\u7eed\u3001\u9009\u62e9\u6027\u7684\u65b9\u6cd5\u6765\u589e\u52a0\u7528\u4e8e\u751f\u4ea7\u751f\u7269\u71c3\u6599\u6216\u6709\u4ef7\u503c\u7684\u5316\u5b66\u7269\u8d28\u7684\u4e0d\u9971\u548c\u5206\u5b50\u4e2d\u6c22\u542b\u91cf\u3002\u751f\u7269\u80fd\u6e90\u7ec4\u535a\u58eb\u540e\u674e\u864e\u5728\u6768\u677e\u6559\u6388\uff08\u8d35\u5dde\u5927\u5b66\uff09\u548c\u65b9\u771f\u6559\u6388\u7684\u6307\u5bfc\u4e0b\uff0c\u901a\u8fc7\u7b80\u5355\u3001\u65e0\u6a21\u677f\u7684\u7ec4\u88c5\u65b9\u6cd5\uff0c\u7528\u9506\u548c\u4e0d\u540c\u7684\u82ef\u81a6\u9178\uff0c\u5408\u6210\u4e86\u4e00\u7cfb\u5217\u7684\u4ecb\u5b54\u548c\u6709\u5e8f\u5c42\u72b6\u7684\u7eb3\u7c73\u6742\u5316\u6750\u6599\u3002\u5b9e\u9a8c\u7ed3\u679c\u8868\u660e\uff0cm-PhPZr \u7eb3\u7c73\u9897\u7c92 (\u7ea6 20-50\u00a0 nm) \u5177\u6709 7.9 nm\u4ecb\u5b54\u4e2d\u5fc3\u548c\u9ad8\u6469\u5c14\u6bd4\u7684\u8def\u6613\u65af\u9178\/\u78b1 (1\/0.7)\uff0c \u5c55\u73b0\u51fa\u5728\u50ac\u5316\u8f6c\u79fb\u52a0\u6c22\u916e\u548c\u919b\u7c7b\u751f\u7269\u8d28\u5e73\u53f0\u5206\u5b50\u4e3a\u76f8\u5e94\u7684\u9187\u7684\u4f18\u8d8a\u6027\u80fd\uff0c\u7ed9\u51fa\u51e0\u4e4e\u5b9a\u91cf\u7684\u4ea7\u7387\uff0c\u53cd\u5e94\u6e29\u5ea6\u6e29\u548c\uff08\u4f4e\u81f3 82 \u00ba C\uff09\uff0c\u7279\u522b\u662f\u5728\u50ac\u5316\u4e59\u9170\u4e19\u9178\u4e59\u916f\u751f\u6210\u751f\u7269\u71c3\u6599\u03b3-\u5185\u916f\u5177\u6709\u9ad8\u7684\u6d3b\u6027\uff08\u9ad8\u8fbe 98%\u7684\u4ea7\u7387\uff09\u3002\u8be5\u50ac\u5316\u5242\uff0c\u53ef\u4ece\u9ad8\u9178\u503c\u6cb9\u8102\u4e2d\uff0c\u4e00\u6b65\u6cd5\u751f\u4ea7\u751f\u7269\u67f4\u6cb9 \uff08\u4ea7\u7387\u4e3a 89%\uff09\uff0c\u901a\u8fc7\u5f02\u6784\u5316\u548c\u8131\u6c34\u8461\u8404\u7cd6\u751f\u4ea75-\u7f9f\u7532\u57fa\u7ce0\u919b\uff08\u4ea7\u7387\u4e3a 56%\uff09\u3002\u50ac\u5316\u5242\u8868\u73b0\u51fa\u826f\u597d\u7684\u7a33\u5b9a\u6027\uff0c\u53ef\u4ee5\u91cd\u590d\u4f7f\u7528\u4e94\u6b21\u3002\u5728\u50ac\u5316\u8f6c\u79fb\u52a0\u6c22\u7fb0\u57fa\u5316\u5408\u7269\uff08\u5982\u4e59\u9170\u4e19\u9178\u4e59\u916f\u5408\u6210 \u03b3-\u620a\u5185\u916f\uff09\u65f6\uff0c\u5218\u6613\u65af\u9178\u6027 (Zr) \u548c\u78b1(PO3) \u4e2d\u5fc3\u53d1\u6325\u534f\u540c\u4f5c\u7528\u3002\u540c\u4f4d\u7d20\u6807\u8bb0\u5b9e\u9a8c\u8fdb\u4e00\u6b65\u9884\u793a\u7740\u53d1\u751f\u76f4\u63a5\u6c22\u8f6c\u79fb\uff0c\u800c\u4e0d\u662f\u91d1\u5c5e\u6c22\u5316\u7269\u8def\u7ebf\u3002<\/p>\n \u8be6\u60c5\u53ef\u89c1\uff1a Orderly layered Zr-benzylphosphonate nanohybrids for ef […]<\/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\/3067"}],"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=3067"}],"version-history":[{"count":3,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/posts\/3067\/revisions"}],"predecessor-version":[{"id":4278,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/posts\/3067\/revisions\/4278"}],"wp:attachment":[{"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/media?parent=3067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/categories?post=3067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/woodrefinery.com\/zhenfang\/wp-json\/wp\/v2\/tags?post=3067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\u4ecb\u5b54\u91d1\u5c5e-\u6709\u673a\u81a6\u9178\u5c42\u7247\u6750\u6599\u7684\u5236\u5907\u53ca\u5176\u7528\u4e8e\u8f6c\u79fb\u52a0\u6c22\u5408\u6210\u751f\u7269\u71c3\u6599<\/strong><\/p>\n
\nH Li, Zhen Fang*, J He, S Yang, Orderly Layered Zr-Benzylphosphonate Nanohybrids for Efficient Acid\/Base-Mediated Bifunctional\/Cascade Catalysis, ChemSusChem, 10, 681\u2013686\u00a0 (2017).<\/p>\n","protected":false},"excerpt":{"rendered":"