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The conversion of biomass-derived materials into value-added products via photocatalysis holds significant promise in driving the development of renewable resources. However, since catalytic processes often require high temperatures and…

Chemical Physics · Physics 2024-08-06 Shuoren Li , Xingxing Meng , Leilei Diao , Jing Wang , Chuanping Li

Mixing Mg with Ti leads to a hydride Mg(x)Ti(1-x)H2 with markedly improved (de)hydrogenation properties for x < 0.8, as compared to MgH2. Optically, thin films of Mg(x)Ti(1-x)H2 have a black appearance, which is remarkable for a hydride…

Materials Science · Physics 2010-02-10 Süleyman Er , Michiel J. van Setten , Gilles A. de Wijs , Geert Brocks

Black TiO2 with/without noble metal has been proposed for visible photocatalyst, still leaving poor catalyst efficiency. Alternatively, phase-mixed TiO2 such as anatase and rutile has been commonly used for visible catalysts with the…

The MgB2 superconductor synthesized in a flowing argon atmosphere using nanometer magnesium powder as the raw materials, denoted as Nano-MgB2, has been studied by the technique of in-situ high temperature resistance measurement (HT-RT…

Superconductivity · Physics 2009-11-10 Chinping Chen , Zeng-jun Zhou , Xing-guo Li , Jun Xu , Yu-hao Wang , Yong-zhong Wang , Qing-rong Feng

Thanks to the \textit{Cassini} spacecraft onboard instruments, it has been known that Titan's ionospheric chemistry is complex and the molecular growth is initiated through the photolysis of the most abundant species directly in the upper…

Earth and Planetary Astrophysics · Physics 2020-01-08 Jérémy Bourgalais , Nathalie Carraso , Ludovic Vettier , Pascal Pernot

In this paper, we report a novel photovoltaic phenomenon in a low cost manganite/ZnO p-n heterojunction grown on ITO glass substrate by pulsed laser depositon (PLD) under relative low growth temperature. The heterostructure…

Materials Science · Physics 2012-08-31 Jiaqi Zhang , Keke Huang , Xiaotian Yang , Wenzhe Si , Xiaofeng Wu , Yanyan Du , Gang Cheng , Shouhua Feng

Methane (CH4) and nitrous oxide (N2O) are potent greenhouse gases that represent substantial chemical energy. Conversion of these abundant waste gases to high-value chemicals typically requires high temperatures up to 1000 C, producing…

The characterization of Pt/TiO2 (Degussa P25) catalyst system using atomic resolution Z-contrast images and electron energy loss spectroscopy in the scanning transmission electron microscope has recently revealed that Pt particles have a…

Materials Science · Physics 2009-11-11 Hakim Iddir , Vladimir Skavysh , Serdar Ogut , Nigel D. Browning

Effective co-catalysts are of key importance for photocatalytic H2 generation from aqueous environments. An attractive co-catalyst candidate are AuPt (metastable) alloys due to the synergistic electronic and chemical interaction of the…

Applied Physics · Physics 2020-05-05 Nhat Truong Nguyen , Selda Ozkan , Ondrej Tomanec , Xuemei Zhou , Radek Zboril , Patrik Schmuki

Supported metal in the form of single atoms, clusters, and particles can individually or jointly affect the activity of supported heterogeneous catalysts. While the individual contribution of supported metal to the overall activity of…

Materials Science · Physics 2026-02-20 Zhuyan Gao , Tiziano Montini , Junju Mu , Nengchao Luo , Emiliano Fonda , Paolo Fornasiero , Feng Wang

Advanced nanomaterials with enhanced optical and photocatalytic properties for the photodegradation of organic pollutants, in particular pharmaceuticals and personal care products (PPCPs), were successfully prepared by a swift one-pot…

Applied Physics · Physics 2022-09-26 D. M. Alves , J. V. Prata , A. J. Silvestre , O. C. Monteiro

Due to their characteristic geometry, TiO$_2$ nanotubes (TNTs), suitably doped by metal-substitution to enhance their photocatalytic properties, have a high potential for applications such as clean fuel production. In this context, we…

Materials Science · Physics 2020-09-17 Mohamed M. Fadlallah , Ulrich Eckern

In dusty plasma environments, the spontaneous growth of nanoparticles from reactive gases has been extensively studied for over three decades, primarily focusing on hydrocarbons and silicate particles. Here, we introduce the growth of…

Monolayer MoTe2 exhibits a variety of derivative structural phases and associated novel electronic properties that enable a wealth of potential applications in future electronic and optoelectronic devices. However, a comprehensive study…

Materials Science · Physics 2024-07-22 Zemin Pan , Tao Jian , Hui Zhang , Xiaoyu Lin , Chao Zhu , Jinghao Deng , Zhengbo Cheng , Chuansheng Liu , Chendong Zhang

Catalysts of carbon monoxide oxidation were synthesized by deposition of platinum on titanium nitride (TiN). Two substrates with an average particle size of 18 and 36 nm were obtained by hydrogen reduction of titanium tetrachloride in a…

We report new near ultraviolet HST/STIS observations of atmospheric absorptions during the planetary transit of HD209458b. We detect absorption in atomic magnesium (MgI), while no signal has been detected in the lines of singly ionized…

Defects in semiconductors can exhibit multiple charge states, which can be used for charge storage applications. Here we consider such charge storage in a series of oxygen deficient phases of TiO$_2$, known as Magn\'eli phases. These…

Materials Science · Physics 2016-02-10 A. C. M. Padilha , H. Raebiger , A. R. Rocha , G. M. Dalpian

Supported carbon nanosheets and carbon nanotubes served as sacrificial templates for preparing spacious TiO2 photocatalytic thin films. Amorphous TiO2 was deposited conformally on the carbonaceous template material by atomic layer…

The reactions of the low-lying metastable states of atomic phosphorus, P($^2$D) and P($^2$P), with H$_{2}$O and H$_{2}$ were studied by the pulsed laser photolysis at 248 nm of PCl$_{3}$ , combined with laser induced fluorescence detection…

Solar and Stellar Astrophysics · Physics 2022-06-29 Kevin M. Douglas , David Gobrecht , John M. C. Plane

The fabrication of heterogeneous photocatalysts has received increasing research interest due to their potential applications for the degradation of organic pollutants in wastewater and the evolution of carbon-free hydrogen fuel via water…

Applied Physics · Physics 2021-11-08 Subrata Das , Sagar Dutta , Angkita Mistry Tama , M. A. Basith