Results 151 to 160 of about 290,379 (268)

Raman spectroscopy [PDF]

open access: yesAnalytical and Bioanalytical Chemistry, 2010
openaire   +2 more sources

Infrared and Raman studies of thin polymer films [PDF]

open access: yes, 1994
[Keywords:- Waveguide; Raman; Attenuated Total Reflection; Infrared; Polymer Films; Barrier Films; Epoxy; Diffusion; Isocyanate; Crosslinking Agents; Cure Time; Kinetics; Urethane; Film Quality]This thesis describes the experimental work carried out ...
Tait, Jonathan Keith Francis
core  

Is It Real Type‐II or S‐Scheme? A Three‐Phase Diagnostic Protocol for Identifying Potentially Mislabeled Heterojunction Photocatalysts

open access: yesAdvanced Functional Materials, EarlyView.
Diagnostic analysis via the heterojunction validation funnel. The funnel illustrates the hierarchical stratification of 30 reported Type‐II systems based on the three‐phase, seven‐step diagnostic framework. Complete validation through all phases is achieved by only 3.3% of systems, while 96.7% lack full mechanistic validation, revealing a pervasive ...
Ki‐Hyun Kim
wiley   +1 more source

Generative AI as chemist’s virtual assistant: a case study with the chemistry of SmI2

open access: yesDiscover Applied Sciences
The scientific community is standing on the verge of the emergence of artificial intelligence (AI) in chemical education and research. While the increasing role of AI-based technologies in research is inevitable, it is of paramount importance to verify ...
Atriakankshya Das   +5 more
doaj   +1 more source

Raman spectroscopy, a non-destructive solution to the study of glass and its alteration

open access: yes, 2008
This paper presents the potential of Raman spectroscopy, a non-destructive technique which can be applied in-situ, for the analyses of glass and their alteration. Recent analytical developments are summarised for different glass composition and practical
Verney-Carron, A   +6 more
core  

Coupling Anodic Activity and Stability at Ni‐Based Non‐Oxide Catalysts via Coordinating Alcohol Oxidation and Oxygen Evolution

open access: yesAdvanced Functional Materials, EarlyView.
A cooperative and competitive interrelationship between alcohol oxidation (AOR) and water oxidation (OER) was observed on a typical anode catalyst of Ni2P. In situ Raman spectroscopy and electrochemical analyses revealed a specific complementary mechanism between them, in which OER and AOR critically contribute to the activity and stability of anodic ...
Yong Yan   +10 more
wiley   +1 more source

Techniques for Studying Materials: Raman Spectroscopy

open access: yes, 2010
This set of animations provides understanding of Raman Spectroscopy, rule of mutual exclusion, spectral resolution and the interactions of light with a molecule.
DoITPoMS, University of Cambridge   +2 more
core  

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

open access: yesAdvanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler   +4 more
wiley   +1 more source

A fiber based synchronously pumped tunable Raman laser in the NIR

open access: yes
Raman lasers have attracted much interest since they allow a very wide range of wavelengths to be generated [1]. Operation in the pulsed regime is compromised by the power dependence of the gain - different parts of the pulse with different instantaneous
Chen, Kang Kang   +4 more
core  

Nano‐Scale Characterization of Impurities Segregation in Solid Oxide Electrolysis Cells

open access: yesAdvanced Functional Materials, EarlyView.
Cathodic polarization induces impurity segregation in Ni, forming an amorphous Na─Al─Si─O amorphous phase at grain boundaries. Under ultralow oxygen partial pressure, multiple elements dissolve, migrate, and reoxidize within the metal. A patterned model system provides direct nanoscale evidence, clarifying the mechanism of polarization‐driven impurity ...
Zhongtao Ma   +5 more
wiley   +1 more source

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