Results 71 to 80 of about 9,090 (227)

Electrical properties of mechanically activated zinc oxide [PDF]

, 2006
Microstructural properties of a commercial zinc oxide powder were modified by mechanical activation in a high-energy vibro-mill. The obtained powders were dry pressed and sintered at 1100°C for 2 h.
Branković G., Srećković T., Vojisavljević K., Žunić M.   +3 more
core   +1 more source

Balancing Electrons to Break the Activity‐Selectivity Trade‐Off in H2O2 Electrosynthesis

Advanced Functional Materials, EarlyView.
Carrier‐concentration balancing in CuS is achieved by coupling cobalt dopants with cobalt vacancies, converting CuS from p‐ to n‐type to accelerate 2e− ORR while withdrawing excess carriers to optimize *OOH binding for H2O2 desorption. The catalyst reaches 8.14 mol g−1 h−1 with >84% selectivity in 1.0 M KOH and drives robust electro‐Fenton dye ...
Hangning Liu, Changhui Sun, Luyao Wang, Yuhang Cheng, Yi Xin, Xuyun Guo, Hui Li, Valeria Nicolosi, Yuhai Dou, Peng Li, Tianyi Ma, Jie Wang   +11 more
wiley   +1 more source

Cross‐Layer Molecular Design for Coherent Interface Passivation in Rigid and Flexible Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
A cross‐layer passivation strategy employing molecularly designed thiazol‐5‐ylmethanamine hydrochloride (TMACl) enables coherent defect regulation at the SnO2/perovskite interface, stabilizes both layers, promotes phase‐pure α‐FAPbI3 formation, and enhances charge extraction, delivering PCEs of 26.44% in rigid and 24.72% in flexible perovskite solar ...
Fan Shen, Chenxu Zhao, Lianghui Li, Jia Xu, Jiale Chen, Xunhui Wang, Huijing Liu, Pengchen Zou, Xuewei Liu, Yao Fu, Huifang Han, Kun Lang, Yijun Wang, Yahan Wu, Xu Pan, Zhaofu Fei, Jianxi Yao   +16 more
wiley   +1 more source

Boosting selective nitrogen reduction to ammonia on electron-deficient copper nanoparticles

, 2019
Production of ammonia is currently realized by the Haber–Bosch process, while electrochemical N2 fixation under ambient conditions is recognized as a promising green substitution in the near future.
Antonietti, M., Chen, J., Li, X., Lin, Y., Su, H., Xue, Z., Zhai, G., Zhang, J., Zhang, S., Zhao, T.   +9 more
core   +1 more source

Photoelectrochemical behavior of electrophoretically deposited hematite thin films modified with ti(IV) [PDF]

, 2016
: Doping hematite with different elements is a common strategy to improve the electrocatalytic activity towards the water oxidation reaction, although the exact effect of these external agents is not yet clearly understood.
Argazzi, Roberto, Bertoncello, Renzo, Bignozzi, Carlo Alberto, Boaretto, Rita, Caramori, Stefano, Carbonare, Nicola Dalle, Colle, Maurizio Dal, Evangelisti, Claudio, Marelli, Marcello, Pasquini, Luca   +9 more
core   +2 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Electrochemical and Photoelectrochemical Investigation of Water Oxidation with Hematite Electrodes [PDF]

, 2012
Atomic layer deposition (ALD) was utilized to deposit uniform thin films of hematite (α-Fe2O3) on transparent conductive substrates for photocatalytic water oxidation studies.
Abdi F. F., Barroso M., Benjamin Klahr, Bertoluzzi L., Bjorksten U., Cowan A. J., Cummings C. Y., Dareedwards M. P., Duret A., Francisco Fabregat-Santiago, Fujishima A., George S. M., Goodenough J. B., Hamann T. W., Hardee K. L., He J., Hellman A., Hong Y.-R., Juan Bisquert, Kanan M. W., Kanan M. W., Kay A., Kennedy J. H., Kerisit S., Klahr B., Klahr B., Klahr B. M., Klahr B. M., Lewis N. S., Lin Y., Lin Y. J., Lutterman D. A., Martinson A. B. F., Marusak L. A., McAlpin J. G., McDonald K. J., Moomow W., Pendlebury S. R., Pendlebury S. R., Peter L. M., Pijpers J. J. H., Pilli S. K., Sanchez H. L., Seabold J. A., Sixto Gimenez, Steinmiller E. M. P., Surendranath Y., Symes M. D., Thomas W. Hamann, Tilley S. D., Trainor T. P., Upul Wijayantha K. G., Zhong D. K., Zhong D. K., Zhong D. K., Zhong D. K.   +55 more
core   +4 more sources

In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts

Advanced Materials, EarlyView.
An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea, Jordan Santiago Martinez, M. Asunción Molina, Jaime Mazarío, Lucy Costley‐Wood, Christian Cerezo‐Navarrete, Carlo Marini, Eduardo Villalobos‐Portillo, Andrew M. Beale, Pascual Oña‐Burgos   +9 more
wiley   +1 more source

Corrosion resistance of 316L stainless steel in fuel cell electrolyte

Metalurgija, 2019
The corrosion resistance and semiconductors of passivation film on the surface of 316L stainless steel has been explored using linear polarization，Potentiostatic polarization electrochemical impedance spectroscopy (EIS) and Mott–Schottky analysis in 0,1 /
T. T. Chen, S. M. Kang, Y. L. Li
doaj  

Mott–Schottky Analysis of SnO2 Nanoparticles by Impedance Measurements underUltrahigh Pressure [PDF]

, 2012
In this study, the SnO2 nanoparticle powders were compacted into a disk shape form of under a ultrahigh pressure up to 49.6 GPa. Complex impedance analysis of nano-SnO2 thick film/electrode system was studied as a function of applied potential.
Chenari, H.M.
core