Results 141 to 150 of about 544,383 (276)

High‐Performance Zero‐Gap Glycerol‐Fed Electrolyzer for C3 Chemicals and Hydrogen Production

open access: yesAdvanced Materials, EarlyView.
This work presents a dynamic, self‐regulating operation strategy that enables selective glycerol electrooxidation in the OER‐free regime, co‐producing C3 chemicals and hydrogen at cell voltages below 1.25 V. Voltage‐ and temperature‐resolved analyses define optimal operating conditions, achieving a sustained current density of 500 mA cm−2 at ∼1.21 V ...
Shayan Angizi   +11 more
wiley   +1 more source

Ilmu Kimia Tumbuhan Lauraceae Indonesia: X. Alkaloid Benzilisokuinolin Dari Litsea cassiaefolia

open access: yesJournal of Mathematical and Fundamental Sciences, 2019
Penyelidikan kimia telah dilakukan untuk pertama kalinya terhadap tumbuhan Litsea cassiaefolia. Pada penyelidikan ini, melalui kombinasi kromatografi partisi dan cara pemisahan yang lazim, tiga alkaloid telah ditemukan, yakni disentrin (I ...
Euis Holisotan Hakim   +3 more
doaj  

Stable P‐Type PbS Quantum Dot Ink for all‐Blade‐Coated Short‐Wavelength Infrared Photodiodes

open access: yesAdvanced Materials, EarlyView.
Stabilization of p‐type PbS quantum dot ink is achieved through hydrogen bonding between fluorinated alcohols solvent and the MP ligand, allowing a six‐day shelf‐life. The solvent does not compromise pre‐deposited layers, enabling fully blade‐coated photodiodes in both n–p and p–n architectures, with enhanced detectivity and bandwidth compared to layer‐
Han Wang   +5 more
wiley   +1 more source

Integrated Lead/Iodine Management for Sustainable Perovskite Solar Modules

open access: yesAdvanced Materials, EarlyView.
Perovskite solar modules face environmental risks from lead and iodine leakage. A dual‐function adsorbent—porphyrin‐modified whitlockite nanocomposites—effectively captures iodine and Pb2+, even under severe damage. Combined with a semi‐closed recycling process, it recovers 96.9% high‐purity PbI2 and reduces residual Pb2+ to <10 ppb, offering an ...
Guo‐Bin Xiao   +6 more
wiley   +1 more source

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

open access: yesAdvanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz   +17 more
wiley   +1 more source

Field‐Effect Transistors from Artificial Charged Domain Walls in Stacked Van der Waals Ferroelectric α‐In2Se3

open access: yesAdvanced Materials, EarlyView.
This study utilizes the van der Waals stacking of ferroelectric α$\alpha$‐In2Se3 to fabricate in‐plane artificial charged domain walls. These charged domain walls are electrically accessible, gate‐tunable, and show 2–9 orders of magnitude higher conductance than charged domain walls from thin film ferroelectrics, allowing their integration in field ...
Shahriar Muhammad Nahid   +6 more
wiley   +1 more source

Enhancing Grayscale E‐Beam Lithography: Thermal Treatment of Novolak‐Based Resist for 3D Nanostructures

open access: yesAdvanced Materials Interfaces, EarlyView.
Surface roughness and chemistry of novolak‐based grayscale resists are dependent on both exposure dose and post‐exposure thermal treatment. The observed trends align with the viscoelastic phase separation model and underscore the need to consider both thermodynamic and kinetic factors in resist processing. By tailoring thermal treatment, it is possible
Rahul Singh   +4 more
wiley   +1 more source

Ilmu Kimia Tumbuhan Lauraceae Indonesia : XI. Alkaloid Aporfin dan Oksoaporfin dari Litsea excelsa.

open access: yesJournal of Mathematical and Fundamental Sciences, 2019
The first chemical investigation on Litsea excelsa had been carried out in our laboratories. Three alkaloids had been isolated in this investigation, namely dicentrinone (I), nordicentrine (II), and norpredicentrine(III), and their identities were ...
Euis Holisotan Hakim   +3 more
doaj  

Opportunities for Multiscale Pattern Modulation with Temporally Arrested Breath Figures

open access: yesAdvanced Materials Interfaces, EarlyView.
This works presents the temporally arrested breath figure methodology and its opportunities for pattern modulation. Through thermodynamic and photochemical phase change handles, this method uses drop‐wise condensation as a dynamic template for fast, accessible and scalable micropatterning.
Francis J. Dent   +5 more
wiley   +1 more source

PENGEMBANGAN ASESMEN ALTERNATIF PRAKTIKUM KIMIA DASAR II MELALUI CHEMISTRY FAIR PROJECT (CFP) BERBASIS KONSERVASI DENGAN MEMANFAATKAN DAILY CHEMICAL

open access: yesJurnal Penelitian Pendidikan, 2016
Penelitian ini bertujuan untuk (1) Mengembangkan asesmen alternatif pada praktikum kimia dasar II melalui chemistry fair project berbasis konservasi dengan memanfaatkan daily chemical(2) Mengetahui tingkat kevalidan, kepraktisan dan keefektifannya ...
Indah Urwatin Wusqo   +2 more
doaj  

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