Results 61 to 70 of about 106,557 (221)

MXenes as a Versatile Platform for High‐Energy‐Density Asymmetric Supercapacitors

Carbon Energy, EarlyView.
MXenes with high conductivity and tunable surface chemistry are reviewed as advanced electrodes for asymmetric supercapacitors. MAX‐phase synthesis, surface and interlayer engineering, defect modulation, and composite designs are discussed, highlighting enhanced ion transport, pseudocapacitance, energy density, cycling stability, and sustainable routes
Seul‐Yi Lee, Jagadis Gautam, Shrikant Vaiju Sadavar, Soo‐Jin Park   +3 more
wiley   +1 more source

Effect of organic additives on mechanical properties of SiC ceramics prepared by a modified gelcasting method [PDF]

Processing and Application of Ceramics, 2016
A novel and simple gel system of isobutylene and maleic anhydride (PIBM) was used to prepare SiC ceramics. The rheological behaviour of the SiC slurries was investigated as function of organic additives.
Feng Wang, Jinwei Yin, Kaihui Zuo, Yongfeng Xia, Dongxu Yao, Yuping Zeng   +5 more
doaj   +1 more source

Synergistically Accelerating Zn2+ Transport and Desolvation Through Cation‐Deficient Ion Channels in High‐Performance Zn Metal Batteries

Carbon Energy, EarlyView.
The novel ITO protective layer enables ultra‐stable Zn metal anodes. By synergistically accelerating Zn2+ desolvation and Zn2+ transport via its unique structure, the ITO layer suppresses dendrites and side reactions. This results in exceptional stability for over 6000 h at 2 mA cm–2 and stable operation in Zn ||MnO2 full‐cell configurations.
Hyeongbeom Kang, Jung Been Park, Myeongcho Jang, Min Sang Kim, Seungho Yu, Dong‐Wan Kim   +5 more
wiley   +1 more source

Adaptive Cu Reconstruction in Heterostructure Drives High-Rate Nitrate-to-Ammonia Conversion. [PDF]

Adv Sci (Weinh)
An adaptively reconstructed Cu/CoOX heterojunction, featuring a surface‐localized, hydroxyl‐rich oxidized Cu species, forms in situ from a CuO/CoOX (Co1Cu9OX) pre‐catalyst during electrochemical nitrate reduction. The self‐adaptive reconstruction and the incorporation of heterostructure regulate nitrogen‐containing intermediate adsorption and *H supply,
Yuan C, Bolar S, Zhang Y, Ito A, Ohto T, Fujita T.   +5 more
europepmc   +2 more sources

Carboxylate–Probase Catalyzed Favorskii Reaction

Chemistry – A European Journal, EarlyView.
Stronger together: A combination of a carboxylate catalyst and a silylating agent generates a stronger base catalyst for a metal‐free catalytic addition of alkynes to aldehydes and ketones under chemoselective, O‐silylative conditions. The reaction is proposed to proceed via quaternary ammonium (Q+) cation – acetylide anion ion pairs, with chiral ...
Anton Bannykh, Sanna M. Stenfors, Anton Nechaev, John M. Fiskari, Petri M. Pihko   +4 more
wiley   +1 more source

Determinação de mercúrio em materiais de referência certificados de amostras biológicas por espectrometria de fluorescência atômica com geração de vapor frio após tratamento com hidróxido de tetrametilamônio [PDF]

, 2010
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.Neste trabalho foi desenvolvido um método rápido, simples e preciso para a quantificação e fracionamento de mercúrio em materiais de ...
Andrade, Rodolpho Merlo de
core  

Gas chromatographic analysis of free fatty acids and glycerides of milk fat using tetramethylammonium hydroxide as catalyste

, 2015
Tetramethylammonium hydroxide in methanol has been proposed as a catalyst for preparing methyl esters of both free fatty acids and glycerides of fats.
Juárez, Manuela, Martínez-Castro, Isabel, Alonso López, Leocadio   +2 more
core   +1 more source

Concentrated aqueous Si3N4 -Y2O3 -Al2O3 slips stabalized with tetramethylammonium hydroxide

Cerâmica, 1999
In order to obtain well dispersed concentrated aqueous Si3N4 slips for slip casting, the influence of pH and sintering aid powders (Y2O3 and Al2O3) on the viscosity and on the amount of tetramethylammonium ions adsorbed were determined.
Albano M. P., Garrido L. B.
doaj  

MICROWAVE-ASSISTED HYDROTHERMAL SYNTHESIS AND CHARACTERIZATION OF TIO2 NANOPARTICLES AND EVALUATION OF THEIR PHOTOCATALYTIC PERFORMANCE [PDF]

Química Nova
The present paper reports the hydrothermal synthesis of nano-TiO2 via microwave-assisted heating. The precursor, titanium(IV) isopropoxide (TIP), and the catalyst, tetramethylammonium hydroxide (TMAH), were subjected to either a single- or a two-step ...
Rafael G. Ferreira, Tamara P. da Silva, Mariandry D. V. R. Rodriguez, Jairo L. Rodrigues, André S. Afonso, Márcio C. Pereira, Douglas S. Monteiro   +6 more
doaj   +1 more source

Molecular Modification Strategies for CO2 Electroreduction to C2+ Products: Classifications, Mechanisms, Advances, and Perspectives

EcoEnergy, EarlyView.
This review comprehensively outlines molecular modification strategies for steering CO2 electroreduction toward C2+ products, including the classification of diverse molecular structures, elucidation of their roles in microenvironment regulation, dissection of C–C coupling pathway engineering, and forward‐looking perspectives on machine learning and ...
Lingling Peng, Hanwen Liu, Tianyou Peng
wiley   +1 more source