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Among them, 1,2-propanediol (1,2-PDO) is of great interest because it can be used as an intermediate and additive in many applications. This work investigated the hydrogenolysis of glycerol to 1,2-PDO over Co\u2013Cu bimetallic catalysts supported on TiO<jats:sub>2<\/jats:sub> (denoted as CoCu\/TiO<jats:sub>2<\/jats:sub>) in aqueous media. The catalysts were prepared using the co-impregnation method and their physicochemical properties were characterized using several techniques. The addition of appropriate Cu increased the glycerol conversion and the 1,2-PDO yield. The highest 1,2-PDO yield was achieved over a 15Co0.5Cu\/TiO<jats:sub>2<\/jats:sub> catalyst at 69.5% (glycerol conversion of 95.2% and 1,2-PDO selectivity of 73.0%). In the study on the effects of operating conditions, increasing the reaction temperature, initial pressure, and reaction time increased the glycerol conversion but decreased the selectivity to 1,2-PDO due to the degradation of formed 1,2-PDO to lower alcohols (1-propanol and 2-propanol). The reaction conditions to obtain the maximum 1,2-PDO yield were a catalyst-to-glycerol ratio of 0.028, a reaction temperature of 250\u00a0\u00b0C, an initial H<jats:sub>2<\/jats:sub> pressure of 4\u00a0MPa, and a reaction time of 4\u00a0h.<\/jats:p>","DOI":"10.1038\/s41598-021-02416-7","type":"journal-article","created":{"date-parts":[[2021,11,29]],"date-time":"2021-11-29T11:02:58Z","timestamp":1638183778000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Highly efficient TiO2-supported Co\u2013Cu catalysts for conversion of glycerol to 1,2-propanediol"],"prefix":"10.1038","volume":"11","author":[{"given":"Wongsaphat","family":"Mondach","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarun","family":"Chanklang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pooripong","family":"Somchuea","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thongthai","family":"Witoon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Metta","family":"Chareonpanich","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kajornsak","family":"Faungnawakij","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiesang","family":"Sohn","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anusorn","family":"Seubsai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,11,29]]},"reference":[{"key":"2416_CR1","doi-asserted-by":"publisher","first-page":"74611","DOI":"10.1039\/C5RA11957J","volume":"5","author":"Y Wang","year":"2015","unstructured":"Wang, Y., Zhou, J. & Guo, X. 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