Results 51 to 60 of about 11,467,391 (359)

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Graphene-Based Materials as Efficient Photocatalysts for Water Splitting

Molecules, 2019
Photocatalysis has been proposed as one of the most promising approaches for solar fuel production. Among the photocatalysts studied for water splitting, graphene and related materials have recently emerged as attractive candidates due to their striking ...
Josep Albero, Diego Mateo, Hermenegildo García   +2 more
doaj   +1 more source

An investigation of the photocatalytic properties of lithium niobate and barium titanate [PDF]

, 2012
Efficiency of particulate semiconductors for driving photocatalytic reactions is impractically low due to the recombination of excited carriers and intermediate species at the interface.
Stock, Matt
core  

Size-Dependent Photocatalytic Activity of Carbon Dots with Surface-State Determined Photoluminescence

Applied Catalysis B: Environmental, 2019
Carbon dots (CDs) were synthesized by a microwave-mediated method and separated by size exclusion chromatography into three different size fractions. There was no correlation of the size with photoluminescence (PL) emission wavelength, which shows that ...
Yiqun Zhou, E. Zahran, Bruno A. Quiroga, Jennifer Perez, Keenan J. Mintz, Zhili Peng, Piumi Y. Liyanage, R. R. Pandey, C. C. Chusuei, R. Leblanc   +9 more
semanticscholar   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

Advanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim, Gayoung Seo, Seong Yeon Park, Juwon Jang, Yunho Ahn, Samiksha Mukesh Jain, Samrat Das Adhikari, Harumi Correa‐Leiva, Ignacio Utreras‐Asenjo, Oscar A. Douglas‐Gallardo, Carina Pareja‐Rivera, Kayoung Cho, Byeongsung Kim, Jhonatan Rodriguez‐Pereira, Eunseo Choi, JaeHong Park, Jin Ho Bang, Danilo H. Jara‐Quinteros, Sixto Giménez, Seog Joon Yoon, Andrés F. Gualdrón‐Reyes, Iván Mora‐Seró   +21 more
wiley   +1 more source

Enhanced Photocatalytic Activity of Powders (P25) via Calcination Treatment

International Journal of Photoenergy, 2012
P25 TiO2 powders were calcined at different temperatures in a muffle furnace in air. The P25 powders before and after calcination treatment were characterized with XRD FTIR, UV-visible diffuse reflectance spectra, SEM, TEM, HRTEM, and N2 adsorption ...
Guohong Wang, Lin Xu, Jun Zhang, Tingting Yin, Deyan Han   +4 more
doaj   +1 more source

Photocatalytic activity of TiO2 nanotube layers coated with Ag and Pt

, 2010
Thin films of anatase TiO2 nanotube arrays (TiO2 NTs) were prepared in this study. Pt and Ag were coated on the TiO2 NTs films, which intend to increase the photocatalytic activity under ultraviolet-visible (UV-vis) irradiation.
Yuan, ZF, Zhang, J. L., Xu, B. S., Yuan, Z. F., Fu, P. F.   +4 more
core   +1 more source

Enhanced photocatalytic activity of Cs4PbBr6/WS2 hybrid nanocomposite

, 2022
Photocatalytic processes are among the prime means for mitigating the pollution caused by toxic effluents. In this context, photocatalysis presents a promising path and undergoing rapid evolution.
Archana, Byregowda, Philip Nathaniel , Immanuel, Song-Jeng, Huang, Alla, Zak, Achiad, Goldreich, Lena, Yadgarov, Raanan, Carmieli, Jonathan, Prilusky, K. V. , Adarsh, Pravrati , Taank, Naresh, Aggarwal   +10 more
core   +1 more source

Long‐Range Coordination Environment Modulates Single‐Atom Local States and Systemic Impact on CO2 Photoconversion

Advanced Functional Materials, EarlyView.
Terminal groups on Cu porphyrins modulate the electronic states of single‐atom Cu centers through a long‐range electronic effect, without altering the Cu coordination geometry. Meanwhile, a multi‐descriptor framework is established that incorporates porphyrin regulation, hybrid catalyst properties, and CO2 photoreduction capabilities.
Yi Zhang, Jintao Dong, Xiahe Chen, Xiyang Wang, Tiange Wei, Yue Zhu, Tai‐Sing Wu, Yun‐Fang Yang, Shao‐Yuan Leu, Keke Wang, Yuanbin She, Huaming Li, Jiexiang Xia, Molly Meng‐Jung Li   +13 more
wiley   +1 more source

How phase composition influences optoelectronic and photocatalytic properties of TiO2 [PDF]

, 2011
In the present study the ratio of rutile and anatase phases in sol−gel-synthe-sized TiO2 was varied by calcination at temperatures ranging from 500 to 900 °C.
Tom J. Savenije, Mul, Guido, Carneiro, Joana T., Guido Mul, Carneiro, J.T., Moulijn, Jacob A., Jacob A. Moulijn, Savenije, Tom J., Joana T. Carneiro   +8 more
core   +1 more source