Selective liquid-phase hydrogenation of citral over supported bimetallic Pt–Co catalysts

Application of alternative energy forms in catalytic reactor engineering

“…Hydrogenation of α -β unsaturated aldehydes, such as cinnamaldehyde [82,83] (Scheme 3) and citral [84] over a CoPt catalyst, is often used as model chemistry for effi cient synthesis of unsaturated alcohols. FePt, by contrast, has been shown to catalyze the hydrogenation of 1-decene [85] and acetylene to ethylene [86] .…”

Room‐Temperature Hydrogenation of Citral Catalyzed by Palladium–Silver Nanocrystals Supported on SnO2

“…3 nm. When Pd(acac) 2 X-ray photoelectron spectroscopy (XPS) showed the binding energy peaks of Pd and Ag in the products (Figure 3, a and b). The strong Ag 3d 5/2 signals were located at 367.8-367.9 eV, which are lower than that of the pure metal (368.3 eV); the dominant peaks at 335.4-335.6 eV were attributed to Pd 3d 5/2 .…”

“…Chemicals: Commercial Pd/C, Pd(acac) 2 and tin(IV) oxide (15 % in H 2 O colloidal dispersion) were obtained from Alfa Aesar, silver trifluoroacetate and oleylamine (OAm) were purchased from J&K Chemical, and activated carbon was obtained from TCI. Analytical-grade ethanol, cyclohexane, and oleic acid were purchased from Beijing Chemical Reagents.…”

“…[1,2] Citral is one of the major components of the essential oils from various plants, including lemon myrtle, litsea citrate, litsea cubeba, and lemon. [3][4][5] Citral has a conjugated double bond (C=C), an isolated double bond (C=C), and a carbonyl group (C=O).…”

Co dendrite based bimetallic structures with nanoflake-built Pt covers and strong catalytic activity

“…However, combining catalytically active noble metals with an inexpensive transition metal can also enhance the activity over that of pure noble metals [19] and further reduces costs. A limited number of reports focus on the bimetals consisting of a group 10 and a group 9 metal instead, for instance Pt-Co systems with various structures [20][21][22][23]. Compared with pure Pt, these structures show much better electrochemical catalytic activity [20,21], selectivity towards hydrogenation of unsaturated aldehydes [22], and enhancement of aqueous phase reforming [23].…”