@article {44014,
	title = {Influence of carbon based supports on selectivity behavior of diols and propanol in Ru catalyzed glycerol hydrogenolysis},
	journal = {Applied Catalysis B: Environmental},
	volume = {204},
	year = {2017},
	month = {MAY},
	chapter = {134-146},
	abstract = {<p>Activated carbon (AC) and three graphite materials were studied as supports for Ru catalyzed glycerol hydrogenolysis to propanediols and 1-propanol. Structural characteristics of AC and graphite materials were found to greatly affect the reducibility and particle size of supported Ru and hence, the activity and product distribution in glycerol hydrogenolysis. XRD of graphite materials showed distinctly (002) plane having highly organized layered structure and the peak intensity decreased in the order of Ru/KS150 \&gt; Ru/HSAG100 \&gt; Ru/KS6 due to decrease in the graphite sheet thickness. In Raman, the intense D band in HSAG100 compared to that in KS6 and KS150 samples indicated its highly amorphous nature or mixed carbon hybridization. Glycerol conversion for Ru on AC was higher than that on graphite and among different graphites, it showed a descending activity order of Ru/KS6 \&gt; Ru/HSAG100 \&gt; Ru/KS150. The product distribution for AC and HSAG100 supported Ru was similar, giving 1-propanol (45\%) alongwith 1,2-propanediol (1,2-PDO) (37\%) and 1,3-propanediol (1,3-PDO) (9{\textendash}11\%). For graphite supports, availability of Ru although bigger in size (4{\textendash}5 nm), would be higher on the surface than in case of AC which formed deep hydrogenolysis products like 1-, 2- propanol, ethanol etc.</p>},
	keywords = {activated carbon, Amorphous carbon, catalysis, Glycerol, Glycerol conversions, Glycerol hydrogenolysis, graphite composites, Graphite supports, Hydrogenolysis, Hydrolysis, layered structures, Particle size, Product distributions, Propanediols, Propanol, Selectivity behavior, Structural characteristics, Structural effect, Structural effects},
	issn = {0926-3373},
	doi = {10.1016/j.apcatb.2016.11.032},
	author = {Mane, Rasika B. and Patil, S. and Shirai, Masayuki and Rayalu, Sadhana S. and Rode, Chandrashekhar V.}
}
@article {47578,
	title = {Active K-OMS-2 supported catalyst for hydrogenolysis of glycerol},
	journal = {ChemistrySelect},
	volume = {6},
	year = {2021},
	month = {SEP},
	pages = {8700-8708},
	type = {Article},
	abstract = {Propanediols are very important chemical intermediates, which need to be prepared through commercially viable routes. Cryptomelane type octahedral molecular sieve-2 (K-OMS-2), a cheap and environmentally benign microporous oxide was employed to support Ru and used as a catalyst to get 1,2-propanediol (1,2-PDO) selectively through hydrogenolysis of glycerol. Three catalysts with different Ru content were prepared and evaluated for glycerol hydrogenolysis. Among these, 1 wt.\% Ru-K-OMS-2 showed reasonably good activity towards 1,2-PDO formation under moderate reaction conditions even at lower Ru loading (0.9 wt.\%). When other metals such as Cu and Ni were supported on K-OMS-2, their performance was inferior compared to Ru-supported catalysts. All the catalysts were characterized using various physicochemical techniques like XRD, N-2-sorption, TPD, H-2-TPR, TGA, ICP-OES, FE-SEM and TEM. The enhanced catalytic activity with the 1 wt.\%Ru-K-OMS-2 catalyst was attributed to the better Ru metal dispersion, higher active metal surface area, basic strength, and porosity of the support. The catalyst was found to be recyclable. Analysis of spent catalyst by TEM showed disintegration of Ru nanoparticles to smaller ones, under high H-2 pressure at the reaction temperature. Smaller Ru particles are expected to promote C-C bond cleavage thus suppressing 1,2-PDO formation. Furthermore, a relationship between the TOF value, Ru nanoparticles size, and the basic strength of the catalysts was established, which provides dipper insight into the different catalytic behavior of the catalysts.},
	keywords = {Glycerol, Hydrogenolysis, octahedral molecular sieves, Propanediols, selectivity},
	issn = {2365-6549},
	doi = {10.1002/slct.202101664},
	author = {Gogoi, Pranjal and Chilukuri, Satyanarayana and Thirumalaiswamy, Raja}
}
@article {48156,
	title = {Influence of catalyst reduction temperature on autogenous glycerol hydrogenolysis over NiAl catalyst},
	journal = {Asian Journal of Organic Chemistry},
	volume = {11},
	year = {2022},
	month = {FEB},
	pages = {e202100704},
	type = {Article},
	abstract = {<p>
	Autogenous glycerol hydrogenolysis to 1,2-propanediol by aqueous phase reforming (APR) was investigated over supported nickel catalysts. Effect of reduction temperature on physico-chemical properties of catalysts played a significant role in tuning conversion and product selectivities. The formation of nickel aluminate (NiAl2O4) spinel phase during catalyst reduction led to rearrangement of Ni species to obtain small and stable Ni particles. The catalyst activation temperature alters the extent of reduction of multivalent Ni species (Ni-0, Ni+2/+3) which facilitated glycerol dehydration and hydrogenation while suppressing C-C cleavage and thus avoiding undesirable side products. Additionally, presence of moderate Bronsted/Lewis acid ratio of the catalyst promoted higher 1,2-PDO selectivity. In-situ glycerol hydrogenolysis involves glycerol dehydration to acetol with simultaneous reforming to H-2 and CO2 and this hydrogen converts acetol to 1,2-PDO.</p>
},
	keywords = {APR, autogenous hydrogenolysis, Glycerol, Propanediols, reduction temperature, spinel},
	issn = {2193-5807},
	doi = {10.1002/ajoc.202100704},
	author = {Pandya, Rajan and Mane, Rasika and Rode, Chandrashekhar}
}
