Results 81 to 90 of about 28,275 (274)

Tunable Coordination Number in Non‐Metal‐Introduced Copper Catalysts Enables High‐Performance Electrochemical CO2 Reduction to C2 Products

Advanced Functional Materials, EarlyView.
Copper catalysts introduced with different non‐metallic elements regulating the coordination number of Cu are prepared by magnetron sputtering. Reducing the Cu coordination number enhances C─C coupling and boosts C2+ product selectivity, by lowering the energy barrier for the *CO → *CHO conversion step. The optimized Si‐doped Cu catalyst achieves a C2+
Xiaoye Du, Bo Gao, Yixuan Yang, Young In Jo, Dan Qian, Chunhui Xiao, Shujiang Ding, Zhongxiao Song, Ki Tae Nam   +8 more
wiley   +1 more source

Deepening inside the pictorial layers of Etruscan sarcophagus of Hasti Afunei: An innovative micro-sampling technique for Raman/SERS analyses [PDF]

, 2019
The Hasti Afunei sarcophagus is a large Etruscan urn, made up of two chalky alabaster monoliths. Dated from the last quarter of the third century BC, it was found in 1826 in the small town of Chiusi (Tuscany- Il Colle place) by a landowner, Pietro Bonci ...
Bianco, Armandodoriano, Bruno, Maurizio, Ciccola, Alessandro, Gagliano Candela, Rossella, Lombardi, Livia, Pellegrino, Lorella, Postorino, Paolo, Serafini, Ilaria   +7 more
core   +1 more source

Heterostructure‐Driven D‐Band of MoS2 Engineering Catalytic Polysulfide Conversion in Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Research on phase ratio‐dependent modulation of built‐in electric fields and d‐band centers in yolk–shell structured C@MoS2‐MoSe2 has determined that the C@3MoS2‐1MoSe2 configuration is optimal, which can achieve an optimal d‐band center position and enhance electrochemical performance.
Ruixian Duan, Guiqiang Cao, Jun Li, Qinting Jiang, Chenyang Hou, Huijuan Yang, Jingjing Wang, Wenbin Li, Changhong Wang, Kun Zhang, Xueliang Sun, Xifei Li   +11 more
wiley   +1 more source

Physicochemical characterization of Lavandula spp. honey with FT-Raman spectroscopy [PDF]

, 2018
This study aimed to evaluate the potential of FT-Raman spectroscopy in the prediction of the chemical composition of Lavandula spp. monofloral honey. Partial Least Squares (PLS) regression models were performed for the quantitative estimation and the ...
Anjos, Ofélia, Estevinho, Leticia M., Paixão, Vasco, Santos, António J.A.   +3 more
core   +1 more source

PbCrO4/Pb Hybrid with Surface Unsaturated Metal Sites for Efficient CO2‐to‐Formate Reduction

Advanced Functional Materials, EarlyView.
An in‐operando electrochemically synthesized Vo‐rich PbCrO4/Pb hybrid exposes abundant unsaturated metal sites on PbCrO4 surface, which facilitates CO2 activation and stability of *OCHO intermediates. Simultaneously, the bulk Pb nanorod significantly enhances the conductivity of electrode for fast charge transport. The Vo‐rich PbCrO4/Pb electrocatalyst
Huai Qin Fu, Zhen Xin Lou, Irfan Ali Soomro, Hai Xiang Yang, Wanhong Zhang, Liang Wang, Nicholas M. Bedford, Hua Gui Yang, Porun Liu, Yun Wang, Huijun Zhao   +10 more
wiley   +1 more source

Application of Vibrational Spectroscopy Supported by Theoretical Calculations in Identification of Amorphous and Crystalline Forms of Cefuroxime Axetil

The Scientific World Journal, 2015
FT-IR and Raman scattering spectra of cefuroxime axetil were proposed for identification studies of its crystalline and amorphous forms. An analysis of experimental spectra was supported by quantum-chemical calculations performed with the use of B3LYP ...
Alicja Talaczyńska, Kornelia Lewandowska, Anna Jelińska, Piotr Garbacki, Agnieszka Podborska, Przemysław Zalewski, Irena Oszczapowicz, Adam Sikora, Maciej Kozak, Judyta Cielecka-Piontek   +9 more
doaj   +1 more source

Detection of Drugs of Abuse by Raman Spectroscopy [PDF]

, 2011
Raman spectroscopy can provide rapid, sensitive, non-destructive analysis of a variety of drug types (e.g. amphetamines, alkaloids, designer drugs and date rape drugs). This review concentrates on developments in the past 15 years.
Ali, Ali, Ali, Angel, Anyu, Bell, Bell, Bell, Bell, Bell, Brewster, Campion, Carter, Clark, Day, Day, Edwards, Eliasson, Faulds, Frederick, Garrido, Hargreaves, Hargreaves, Harvey, Katainen, Leger, Littleford, Milhazes, Milhazes, Noonan, Noonan, Qu, Ryder, Ryder, Ryder, Sands, Schulz, Smith, Sägmüller, Thorley, Tsuchihashi, West, West, West, Weston, White   +45 more
core   +1 more source

Stabilizing Cationic Palladium Single‐Atom Sites on Heteroatom‐Doped Carbon for Selective Hydrogen Peroxide Electrosynthesis

Advanced Functional Materials, EarlyView.
In this research, it is demonstrated that dual nitrogen and sulfur doping in hollow carbon spheres creates a tunable coordination environment that stabilizes cationic Pd single atoms as robust organometallic complexes, enabling high selectivity and stability for electrochemical hydrogen peroxide production under harsh acidic and peroxide‐rich ...
Guilherme V. Fortunato, Alexander Gunnarson, Hannaneh Hosseini, Xiangyu You, Pallabi Bhuyan, Ji Sik Choi, Hyo Sang Jeon, Xingshen Zhao, Julio C. Lourenço, Sumin Lim, Huize Wang, Ana Guilherme Buzanich, Martin Radtke, Paul Paciok, Marcos R.V. Lanza, Ferdi Schüth, Marc Ledendecker   +16 more
wiley   +1 more source

Application of micro-raman and ft-ir spectroscopy in forensic analysis of automotive topcoats in the Republic of Macedonia

Macedonian Journal of Chemistry and Chemical Engineering, 2008
Raman and infrared spectroscopy are two complementary spectroscopic techniques that can produce fast, efficient and accurate detection of the pigments and/or binders used in automotive topcoats.
Maja Skenderovska, Biljana Minčeva-Šukarova, Liljana Andreeva   +2 more
doaj   +1 more source

Intermediate Phases, structural variance and network demixing in chalcogenides: the unusual case of group V sulfides

, 2008
We review Intermediate Phases (IPs) in chalcogenide glasses and provide a structural interpretation of these phases. In binary group IV selenides, IPs reside in the 2.40 < r < 2.54 range, and in binary group V selenides they shift to a lower r, in the 2 ...
Ahn, Angell, Barre, Boolchand, Boolchand, Boolchand, Boolchand, Boolchand, Boolchand, Boolchand, Boolchand, Boolchand, Boolchand, Briley, Brière, Cai, Carpentier, Chakravarty, Chen, Chen, Eckert, Effey, Feng, Ganjoo, Georgiev, Georgiev, Georgiev, Georgiev, Golovchak, He, Hisakuni, Inam, Kalampounias, Kincl, Kohlrausch, Koudelka, Lucovsky, Lucovsky, Mauro, Mauro, Micoulaut, Micoulaut, Mitkova, Mori, Mutolo, Novita, P. Boolchand, Pauling, Pederson, Phillips, Phillips, Ping Chen, Qu, Qu, Renninger, Sartbaeva, Selvanathan, Selvanathan, Shimakawa, Shimakawa, Sidebottom, Sidebottom, Sidebottom, Stegeman, Thorpe, Thorpe, Tichý, Tullius, U. Vempati, Vaills, Vempati, Wagner, Wang   +72 more
core   +1 more source