Results 251 to 260 of about 160,115 (307)

Support‐Driven Hydrogen Migration Enhances Ammonia Decomposition in Direct Ammonia Protonic Ceramic Fuel Cells

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Enhanced hydrogen species migration enabled by FN/BZY catalyst mitigates intermediate accumulation and improves DA‐PCFC performance during ammonia decomposition. Ammonia, with its high hydrogen density and carbon‐free nature, serves as ideal fuel for direct ammonia protonic ceramic fuel cells (DA‐PCFCs).
Meijuan Fei, Shuai Wang, Zhaohui Cai, Dongliang Liu, Cheng Huang, Xixi Wang, Jie Miao, Huangang Shi, Chuan Zhou, Wei Zhou   +9 more
wiley   +1 more source

Integrated Solvent‐Catalyst‐Dopant Strategy via Acidic DES for Synthesizing Lignin‐Derived Carbon Dots With High‐Quantum Yield to Achieve Efficient Photocatalytic Degradation of Tetracycline

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A deep eutectic solvent (ChCl/pTSA) platform enables integrated solvent, catalyst, and dopant functions, producing sulfur‐doped carbon quantum dots with a high sp2‐C content (82.8%) and a quantum yield of 56.9%. When combined with TiO2, the CQDs form TiOC and TiOS interfacial bridges, achieving 97.3% tetracycline photodegradation with excellent ...
Xinhang Li, Haipeng Guo, Suen Hou, Fenghua Huang, Hailong Yu   +4 more
wiley   +1 more source

Epoxidation of Cashmeran and Unprecedented Rearrangement to an α‐Carbonyl δ‐Spirolactone

European Journal of Organic Chemistry, EarlyView.
A new strategy enables diastereoselective conversion of Cashmeran into a previously unknown α‐carbonyl δ‐spirolactone via epoxidation, Baeyer–Villiger oxidation, and acid‐catalyzed rearrangement. Structure and mechanism were confirmed by NMR, single crystal X‐ray diffraction, and computational studies. We report the epoxidation of Cashmeran followed by
Lukas Kell, Niklas Bartsch, Johannes Panten, Marcus Eh, Jan Paradies, Hans Egold, Anke Spannenberg, Thomas Werner   +7 more
wiley   +1 more source

Validated RP‐HPLC–UV Method for the Quantitative Analysis and Stability Evaluation of Amoxicillin in Paediatric Gummy Tablets

ELECTROPHORESIS, EarlyView.
A validated RP‐HPLC–UV method was successfully applied for amoxicillin determination in gummy tablets. The method is useful for an accurate amoxicillin content determination in paediatric gummies and was applied to study the stability profile of the drug, evaluated over 6 months under storage conditions.
Samuele Bonafè, Anna Imbriano, Cinzia Pagano, Anna Migni, Elisa Bianconi, Laura Mercolini, Luana Perioli, Roccaldo Sardella   +7 more
wiley   +1 more source

Cyclodextrins as Chiral Selectors in Capillary Electrophoresis—Recent Developments in Understanding Analyte Complexation and Applications in Pharmaceutical Analysis

ELECTROPHORESIS, EarlyView.
Cyclodextrins are the most often applied chiral selectors in CE enantioseparations. In combination with NMR spectroscopy and molecular modeling, studies for an understanding of chiral recognition underlying enantioseparations have been performed.
Gerhard K. E. Scriba
wiley   +1 more source

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Hydroxypropylation and acetylation of rice starch: effects of starch protein content

Food Science and Biotechnology, 2022
This study investigated the impact of starch proteins on the hydroxypropylation and acetylation of rice starch. Hydroxypropylated (HP) and acetylated (AC) starches were synthesized using rice starch prepared by protease digestion with and without purification.
Hyun Woo Choi, Hyun-Seok Kim
openaire   +2 more sources

Measurement of the Starch Content of Commercial Starches

Starch - Stärke, 1987
AbstractFor the EC starch regulation 2169/1986 a minimum purity of 97% starch on dry substance is required to obtain the new end‐use refunds. Three different methods for the determination of starch were tested. Two polarimetric methods (EC L123/72, AOAC 14031‐032) and an enzymatic method (EC L158/86) were used to determine the high starch content of ...
E. Moreels, N. V. Amylum
openaire   +1 more source