Results 41 to 50 of about 45,220 (265)

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Observations of non-solar-type dynamo processes in stars with shallow convective zones [PDF]

, 2010
The magnetic field topology and differential rotation are fundamental signatures of the dynamo processes that generate the magnetic activity observed in the Sun and solar-type stars.
S. C. Marsden, Astrophysics, J.-F. Donati, S. V. Jeffers, Donati, J. -F., Donati, J.-F., E. Alecian, Alecian, E., Donati, J.F., Donati, J-F., Donati, Jean-François, Alecian, Evelyne, Jeffers, S.V., Marsden, S. C., Sub Experiment. Astrophysics begr 1/1/14, Jeffers, S. V., Marsden, S.C.   +16 more
core   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +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

Planet occurrence within 0.25AU of solar-type stars from Kepler [PDF]

, 2012
We report the distribution of planets as a function of planet radius, orbital period, and stellar effective temperature for orbital periods less than 50 days around solar-type (GK) stars.
Ford, Eric B., Fressin, Francois, Borucki, William J., Howard, A.W., Dunham, Edward W., Kjeldsen, Hans, Van Cleve, Jeffrey, Latham, David W., Koch, D.G., Howell, Steve B., Charbonneau, David, Tarter, Jill, Prsa, Andrej, Holman, Matthew J., Christiansen, Jessie, Gautier, Thomas N., Brown, Timothy M., Howard, Andrew W., Rowe, Jason F., Still, Martin, Seager, Sara, Fortney, Jonathan J., Sasselov, Dimitar D., Girouard, Forrest R., Christensen-Dalsgaard, Jørgen, Christensen-Dalsgaard, Jorgen, Dunham, E.W., Basri, Gibor S., Lucas, Philip W., Batalha, N.M., Twicken, Joseph D., Morton, Timothy D., Devore, Edna, Ragozzine, Darin, Thompson, Susan E., Koch, David G., Morehead, Robert C., Jenkins, J.W., Gilliland, Ronald L., Johnson, John Asher, Rowe, J.F., Jenkins, Jon M., Dupree, Andrea, Moorhead, Althea V., Lissauer, Jack J., Marcy, Geoffrey W., Rogers, Leslie, Clarke, Bruce, Endl, Michael, Batalha, Natalie M., Gautier, Thomas N., III, Bryson, S.T., Fischer, Debra A., Ciardi, David, Tenenbaum, Peter, Buchhave, Lars C. Astrup, Borucki, W.J., Cochran, William D., Steffen, Jason H., Shporer, Avi, Quinn, Samuel N., Morris, Robert L., Boss, Alan, Gould, Alan, Isaacson, Howard, Mullally, Fergal, Welsh, William F., Bryson, Stephen T., Walkowicz, Lucianne M., Rogers, Leslie Anne, MacQueen, Phillip J., Machalek, Pavel, Haas, Michael R., Fabrycky, Daniel C., Caldwell, Douglas A., Smith, Jeffrey C., Buchhave, Lars A., Torres, Guillermo, Klaus, Todd C., Geoffrey, G.W.   +79 more
core   +1 more source

Bioinspired Hierarchically Interconnected Supermacroporous Hydrogels via Dual‐Templating for Rapid Atmospheric Water Harvesting

Advanced Functional Materials, EarlyView.
Inspired by lung alveolar architecture, a dual‐templating strategy combining CO2 bubble and ice templating creates mechanically robust super‐macroporous hydrogels with highly interconnected transport pathways. The resulting material achieves 3.37× faster moisture sorption and 1.72× higher solar‐driven water release than single‐templated counterparts ...
Pan Huang, Weiyan Zhu, Yuanyuan Wang, Hanxiao Zhang, Ying Hu, Siyuan Yang, Wenshuai Yang, Hongbo Zeng   +7 more
wiley   +1 more source

Decoupling Light Absorption From Photocatalytic Reactivity in TiO2 via Defect and Interfacial Engineering

Advanced Functional Materials, EarlyView.
A hybrid photoprotective material integrates N‐doped TiO2 with a metal‐phenolic network (MPN) to achieve broad‐spectrum attenuation and robust reactive oxygen species (ROS) suppression. Nitrogen doping extends attenuation into the UVA/high energy visible light (HEV) regions and facilitates fast charge recombination to inhibit ROS formation.
Saehan Choi, Heewon Kim, Dongwoo An, KwangHo Lee, Minkyoung Kim, Yunhwa Hong, Kwang Heo, Jongwon Shim, EunAe Cho, Yoonsung Nam   +9 more
wiley   +1 more source

Benchmark stars for mean stellar density and surface gravity estimates of solar-type stars [PDF]

Adding an independent estimate of the mean stellar density, , as a constraint in the analysis of stars that host transiting exoplanets can significantly improve the precision of the planet radius estimate in cases where the light curve is too noisy to ...
Maxted, P F L
core   +1 more source

Variability of Kepler Solar-Like Stars Harboring Small Exoplanets [PDF]

, 2016
We examine Kepler light-curve variability on habitable zone transit timescales for a large uniform sample of spectroscopically studied Kepler exoplanet host stars.
Everett, Mark E., Ciardi, David R., Giampapa, Mark S., Howell, Steve B., Silva, David R., Szkody, Paula   +5 more
core   +1 more source

Lithium Abundances in Solar-Type Stars [PDF]

Symposium - International Astronomical Union, 2000
We report Li abundances from the λ6707 line for 19 nearby dwarf and subgiant solar-type stars. The unevolved stars in this sample present high (> 2.00) Li abundances. We found a few cases of subgiant stars which present high Li content. The Sun seems to be part of a population of nearly unevolved stars which have depleted their Li to a high degree ...
L. da Silva, G. F. Porto de Mello
openaire   +1 more source