Results 41 to 50 of about 253 (183)

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa, Jildimara de Jesus Santana, Viviane de Oliveira Campos, Felipe Fernandes Barbosa, Gregory S. Patience   +4 more
wiley   +1 more source

Bottlenecks‐Breaking in Zinc‐Iodine Batteries Toward Practical Implementation: A Review and Perspective

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Aqueous zinc–iodine batteries (Zn–I2Bs) offer promise for grid storage due to safety and cost advantages yet face critical bottlenecks: severe self‐discharge (polyiodide shuttling and HER), limited energy density, sluggish kinetics, and zinc anode instability.
Jia‐Lin Yang, Jun‐Ming Cao, Dai‐Huo Liu, Xing‐Long Wu   +3 more
wiley   +1 more source

Soot reference materials for instrument calibration and intercomparisons: a workshop summary with recommendations [PDF]

Atmospheric Measurement Techniques, 2012
Soot, which is produced from biomass burning and the incomplete combustion of fossil and biomass fuels, has been linked to regional and global climate change and to negative health problems.
D. Baumgardner, O. Popovicheva, J. Allan, V. Bernardoni, J. Cao, F. Cavalli, J. Cozic, E. Diapouli, K. Eleftheriadis, P. J. Genberg, C. Gonzalez, M. Gysel, A. John, T. W. Kirchstetter, T. A. J. Kuhlbusch, M. Laborde, D. Lack, T. Müller, R. Niessner, A. Petzold, A. Piazzalunga, J. P. Putaud, J. Schwarz, P. Sheridan, R. Subramanian, E. Swietlicki, G. Valli, R. Vecchi, M. Viana   +28 more
doaj   +1 more source

Seasonal contrast in size distributions and mixing state of black carbon and its association with PM_1.0 chemical composition from the eastern coast of India [PDF]

Atmospheric Chemistry and Physics, 2020
Over the Indian region, aerosol absorption is considered to have a potential impact on the regional climate, monsoon and hydrological cycle. Black carbon (BC) is the dominant absorbing aerosol, whose absorption potential is determined mainly by its ...
S. K. Kompalli, S. N. Suresh Babu, S. K. Satheesh, S. K. Satheesh, K. Krishna Moorthy, T. Das, R. Boopathy, D. Liu, D. Liu, E. Darbyshire, J. D. Allan, J. D. Allan, J. Brooks, M. J. Flynn, H. Coe   +14 more
doaj   +1 more source

Metal‐Free Submicron‐Hollow‐Fiber Conjugated Polymer Sponges for Efficient Pollutant Removal and Thermal Insulation

Small, EarlyView.
Mimicking natural tubular structures, metal‐free conjugated hollow fibers are synthesized via one‐pot Chichibabin condensation. Pyridinic networks spontaneously self‐assemble into submicron hollow fibers and entangle into spongy monoliths—without templates, metals, or post‐processing.
Songah Jeong, Hyungwoo Kim
wiley   +1 more source

Microfluidics‐Driven Piezophotocatalysis: An Innovative Approach for Accelerated Water Remediation Using PVDF–Transition Metal Sulfide‐Based Piezocatalysts

Small Science, Volume 6, Issue 3, March 2026.
An integrated microfluidic platform integrating flow‐engineered micropillars with a PVDF–TMDC‐based piezophotocatalytic membrane enables rapid and energy‐efficient degradation of dyes and pharmaceuticals. Synergistic piezoelectric activation, visible‐light irradiation, ultrasonic vibration, and microscale flow dynamics deliver high‐throughput pollutant
Alisha Rohal, Vibhav Katoch, Abhishek Kumar, Ambrish Pandey, Bhanu Prakash   +4 more
wiley   +1 more source

Sensitivity of the Single Particle Soot Photometer to different black carbon types [PDF]

Atmospheric Measurement Techniques, 2012
Black carbon (BC) is now mainly of anthropogenic origin. It is the dominant light absorbing component of atmospheric aerosols, playing an important role in the earth's radiative balance and therefore relevant to climate change studies. In addition, BC is
M. Laborde, P. Mertes, P. Zieger, J. Dommen, U. Baltensperger, M. Gysel   +5 more
doaj   +1 more source

Temperature‐Dependent Zinc Oxide Cathodoluminescence: Toward Compact Wavelength‐Tunable Solid‐State Photoionization Sources

Advanced Optical Materials, Volume 14, Issue 6, 9 February 2026.
A proof‐of‐concept of a thermally‐tunable cathodoluminescence‐based light source is demonstrated using a wide‐bandgap z‐cut ZnO crystal as anode, resulting in the ultraviolet (UV) emission peak shifting from 398 nm to ~409 nm (3.115‐3.032 eV). Our results establish the feasibility of a compact, field‐deployable UV source with potential for gas sensing ...
Rui M. R. Pinto, Aritz Retolaza, João Cunha, Pedro Matos, Júlio Silva, Diana Silva, Rosana Alves Dias, K. B. Vinayakumar   +7 more
wiley   +1 more source

Comparison between Different Optical Configurations of Active-FRAME Setup in Multispectral Imaging of Flames

Photonics
Snapshot multispectral imaging of chemical species in the flame is essential for improved understanding of the combustion process. In this article, we investigate the different configurations of a structured laser sheet-based multispectral imaging ...
Devashish Chorey, Prasad Boggavarapu, Devendra Deshmukh, Ravikrishna Rayavarapu, Yogeshwar Nath Mishra   +4 more
doaj   +1 more source

Cr3+‐Activated Tunable Near‐Infrared Mechanoluminescence Materials for Potential Water Pollutant Monitoring

Advanced Functional Materials, Volume 36, Issue 6, 19 January 2026.
Four kinds of magnetite type NIR‐ML materials are synthesized by high‐temperature solid‐state reaction method. The continuous spectral tuning from a sharp R line (698 nm) to a broadband range (650–1000 nm) is realized based on composite engineering, concentration engineering, and lattice engineering strategies.
Xuesong Wang, Yao Xiao, Puxian Xiong, Pan Zheng, Shengbing Xu, Wenzhao He, Haiqiang Fang, Pengzhe Wang, Jiayi Yu, Sheng Wu, Qi Qian   +10 more
wiley   +1 more source