02448nas a2200265   4500008004100000022001400041245011700055210006900172260000800241300001100249490000800260520154400268653002101812653002501833653002101858653002201879653001901901100002001920700002301940700001801963700001901981700002102000700003002021856013102051       2026                        eng d  a1385-894700aConcurrent glycerol oxidation and hydrogen production on Ce-Co oxide/carbon for sustainable biomass valorization0 aConcurrent glycerol oxidation and hydrogen production on CeCo ox  cMAY  a1757070 v5353 a<p>
	Integrating glycerol oxidation with water electrolysis offers a sustainable route for hydrogen production while enabling concurrent generation of industrially relevant C1-C3 value-added materials. This system replaces kinetically sluggish oxygen evolution reaction (OER) simultaneously delivering H-2 at the cathode with high turnover frequency, thereby lowering the overall cell voltage and enabling the valorization of glycerol, a major by-product of the biodiesel industry. However, the development of an efficient bifunctional electrocatalysts capable of driving cathodic as well as anodic half-cell reactions remains a key challenge. Herein, we present a cerium-cobalt oxide composite modified with an amorphous carbon layer (Ce,Co-O/C) as an effective bifunctional catalyst for glycerol-assisted water electrolysis. The interfacial electron distribution across the Co-Ce oxide heterojunction generated abundant redox-active sites and accelerates reaction kinetics, while the conductive carbon layer facilitates rapid charge transfer and imparts improved stability. Consequently, the Ce, Co-O/C catalyst exhibited high formate selectivity at 1.4 V (vs RHE) at room temperature and delivers a low cell voltage of 1.90 V at 100 mA cm(-2) in a symmetric Ce,Co-O/C vertical bar vertical bar Ce,Co-O/C system, maintaining operational stability over 100 h. This work provides a promising interface-engineering for designing self-supported bifunctional electrocatalysts toward integrated biomass assisted co-electrolysis systems.</p>
10aAmorphous carbon10abiomass valorization10aelectrocatalysis10aenergy conversion10agreen hydrogen1 aJana, Jayasmita1 aChowdhury, Somnath1 aSaha, Avishek1 aKang, Sung, Gu1 aHur, Seung, Hyun1 aGopinath, Chinnakonda, S.  uhttps://library.ncl.res.in/content/concurrent-glycerol-oxidation-and-hydrogen-production-ce-co-oxidecarbon-sustainable-biomass02989nas a2200277   4500008004100000022001400041245016400055210006900219260000800288300001100296490000800307520198800315653002502303653002102328653002202349653001902371100002302390700002802413700002902441700002102470700001802491700001802509700002602527700003002553856012802583       2026                        eng d  a1385-894700aPotential tuneable glucose oxidation to selective C6 molecules and CC cleavage, and parallel green H2 production: sustainable high current density electrolysis0 aPotential tuneable glucose oxidation to selective C6 molecules a  cFEB  a1726330 v5293 a<p>
	Current study elucidates the electrocatalytic efficacy of palladium-nanocubes (Pd-NCs) for the selective oxidation of glucose to value-added chemicals with concomitant hydrogen evolution. The Pd-NC catalyst demonstrated exceptional activity and product selectivity, achieving nearly quantitative glucose conversion (&gt;99 %) with high gluconic and glucaric acid yield at low anodic overpotential (0.6 V vs. RHE) in alkaline electrolyte. At not-so-high elevated potentials (1.2 V vs. RHE), oxidative CC scission prevails, yielding shorter-chain carboxylates along with C6-acids. Reaction products are thoroughly characterized and quantitatively estimated by NMR spectral methods; NMR methods also provide CC cleavage and mechanistic pathways of glucose to various products. Complementary DFT calculations delineate the thermodynamic favorability of glucose adsorption on Pd-NC surfaces (-1.83 eV) and the exergonic oxidation pathway under applied bias, corroborating experimental product distributions. In a two-electrode electrolyzer, Pd-NC anode paired with Pt/C and Ni2P cathode demonstrates 100 mA/cm(2) at 0.99 V and 1.37 V, respectively, with 48 % reduction in energy input (26.6 kWh/kg H-2) compared to conventional alkaline electrolysis; critically, H-2 production energy is lower than the usable energy (33.3 kWh/kg H-2). Sustainable chronopotentiometric assays confirm sustainability (similar to 140 h) in alkaline as well as saline electrolytes, underscoring the system's resilience against chloride-mediated corrosion. Present work establishes a proof of concept for integrated biomass-component valorization and carbon-negative green hydrogen production, merging atomic-level mechanistic insights with scalable reactor design. Optimization of reaction parameters, including potential tuning, reaction temperature and electrolyte engineering, offers a compelling strategy to further enhance C6 and fragmented product selectivity and overall system efficiency.</p>
10abiomass valorization10aelectrocatalysis10aenergy conversion10aSustainability1 aChauhan, Inderjeet1 aPatra, Kshirodra, Kumar1 aVijay, Pothoppurathu, M.1 aNalajala, Naresh1 aMehta, Shweta1 aJoshi, Kavita1 aRavindranathan, Sapna1 aGopinath, Chinnakonda, S.  uhttps://library.ncl.res.in/content/potential-tuneable-glucose-oxidation-selective-c6-molecules-and-cc-cleavage-and-parallel