Results 131 to 140 of about 58,135 (312)

Entropy‐Stabilized Aluminate Catalysts That Break the Activity–Stability Tradeoff in CF4 Hydrolysis

Angewandte Chemie, EarlyView.
Entropy‐stabilized aluminate breaks the activity–stability tradeoff in CF4 hydrolysis by combining a multication aluminate framework with an entropy‐stabilized lattice. An electron‐deficient Al–O environment is F‐philic but O‐phobic, enabling C–F activation while suppressing H2O poisoning. Under steam‐rich, strongly fluorinating conditions, the entropy‐
Seunghyuck Chi, Hyungmin Jeon, Yaejun Baik, DongHwan Oh, Jin Seok, Woosung Choi, Seungjun Lee, Minkee Choi   +7 more
wiley   +2 more sources

Efficient Sequestration of Heavy Metal Cations by [Mo₂S₁₂]²⁻ Intercalated Cobalt Aluminum-Layered Double Hydroxide

Inorganics
Heavy metal cations such as Ag+, Pb2+, and Hg2+ can accumulate in living organisms, posing severe risks to biological systems, including humans. Therefore, removing heavy metal cations from wastewater is crucial before discharging them to the environment.
Subrata Chandra Roy, Carrie L. Donley, Saiful M. Islam   +2 more
doaj   +1 more source

Defect States in Hydrogenated- nanocrystalline Si thin films

, 2009
Hydrogenated nanocrystalline silicon films (nc-Si:H) is a very promising material for photovoltaic applications. Notwithstanding its interesting properties, many issues regarding its electronic and optical properties and the influence of structural ...
D. Chrastina, G. Isella, CAVALLINI, ANNA, CAVALCOLI, DANIELA   +3 more
core  

Zinc Sulfide Enabling Remarkable Surface Passivation of Crystalline Silicon

Advanced Energy Materials, EarlyView.
Polycrystalline ZnS films capped by Al2O3 provide outstanding surface passivation performance. The excellent lattice agreement between c‐Si and ZnS combined with a hydrogenation step result in extremely low interface state density (≈ 1×1010 cm−2 eV−1) and recombination current pre‐factor (1.0 fA/cm2), revealing a new passivation strategy for ...
Gabriel Bartholazzi, Elodie Galinier, Felipe Kremer, Piyumi Kodithuwakku, Daniel Macdonald, Lachlan Black   +5 more
wiley   +1 more source

Polarity‐Directed Synthesis of an Exfoliable 2D Polyoxometalate‐Based Metal‐Organic Framework for Noble Metal‐Free Alkyne Transfer Semi‐Hydrogenation

Angewandte Chemie, EarlyView.
Exfoliation of 2D nanosheets based on polyoxometalate metal‐organic frameworks (POMOFs) gives access to nanostructures with selective catalytic reactivity for the alkyne transfer semi‐hydrogenation which outperform the bulk references and rival some classical noble metal‐based catalysts.
Xusheng Dai, Yalei Zhang, Yue Zhao, Shujun Li, Nana Ma, Qingchun Xia, Yiwei Liu, Rongji Liu, Shuxia Liu, Xuenian Chen, Carsten Streb   +10 more
wiley   +2 more sources

Sputtering Mechanism of an Unsintered Organic–Inorganic Sputtering Target for Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
An unsintered MAPbI3 sputtering target fabricated via a mechanochemical route enables large‐area vacuum deposition of perovskite absorber layers, while revealing an ion–photon coupled decomposition mechanism that governs target erosion and film composition under RF plasma exposure.
Doha Lim, Rira Kang, Yewon Lee, Hyun Hwi Lee, Mee‐Yi Ryu, Muntae Hwang, So‐Yeon Ju, Fang Luo, Byunghong Lee, Han‐Ki Kim   +9 more
wiley   +1 more source

Complex Iridium Oxides Converge In Structure And Reactivity During Acidic Oxygen Evolution Electrocatalysis

Advanced Energy Materials, EarlyView.
Ir‐based double perovskites restructure during acidic oxygen evolution electrocatalysis through dissolution of non‐Ir cations and convergence toward IrOx active‐site motifs with similar structure and intrinsic activity across compositions. The identity of the dissolving cations controls dissolution and surface reconstruction kinetics, clarifying how ...
Harrison H. Lippie, Xun Zhan, Kevin C. Matthews, Arya M. Balasubramanian, Jamie H. Warner, Joaquin Resasco   +5 more
wiley   +1 more source

Molecular Dynamics Simulation of Microstructure of Nanocrystalline Copper

, 2001
The microstructure of computer generated nanocrystalline coppers is simulated by using molecular dynamics with the Finnis-Sinclair potential, analysed by means of radial distribution functions, coordination number, atomic energy and local crystalline ...
周富信, 文玉华, 刘曰武, Wen, YH (reprint author), Chinese Acad Sci, Inst Mech, State Key LNM, Beijing 100080, Peoples R China.   +3 more
core  

Current‐Driven Li2O Formation in Catalyst‐Free Solid‐State Li‐O2 Batteries Enabling Simultaneous High Energy and High Power

Advanced Energy Materials, EarlyView.
A catalyst‐free solid‐state Li‐O2 battery achieves current‐driven four‐electron Li2O formation, delivering simultaneous high‐energy and high‐power operation with 1032 Wh·kg−1 and 374 W·kg−1 in a single cell. ABSTRACT Li‐O2 batteries offer a compelling pathway toward next‐generation energy storage owing to their ultrahigh theoretical energy density ...
Shu‐Ting Ko, Ziting Ma, Cruz Gonsalves, Joseph Degroot, Chuck Chunhu Tan, Timothy Lin, Cauê Nogueira, Xin Xu, Chunting Chris Mi, Lingping Kong   +9 more
wiley   +1 more source

Innovative synthesis and performance enhancement of yttria-stabilized zirconia nanocrystals via hydrothermal method with Uncaria gambir Roxb. leaf extract as a capping agent

Kuwait Journal of Science
Yttria-stabilized zirconia (YSZ) is a ceramic material with versatile applications, yet its synthesis and performance improvements remain essential. This study introduces an innovative hydrothermal synthesis method with pH control and Uncaria gambir Roxb.
doaj   +1 more source