Results 151 to 160 of about 18,332 (234)
Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS
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 +4 more
wiley +1 more source
Recent Progress of Transition Metal Phosphides for Alkaline Hydrogen Evolution Reaction
Transition metal phosphides (TMPs) are competitive substitutes for platinum‐based catalysts due to cost‐effectiveness, abundant reserves, tunable properties, and comparable performance. This review outlines the synthesis and control strategies of TMPs, providing critical insights to overcome the challenges of TMP‐based electrocatalysts in alkaline ...
Baohui Zhu +5 more
wiley +1 more source
Fossil fuel reserves are rapidly depleting, while global energy demands continue to rise, prompting researchers to seek sustainable alternatives. Among these, biofuels, particularly biodiesel, stand out as a biocompatible and friendly option. However, biodiesel production via transesterification generates large quantities of glycerol (GOL) as a by ...
Muhammad Faiz Ahmad +4 more
wiley +1 more source
This paper presents a breakthrough pre‐breakdown electrochemical method for synthesizing polyNiMeOSalen suspensions, achieving an 83% yield and nanoscale dispersion ($1500/kg) and environmental impact (1.42 kg CO2eq/kg). We report a novel pre‐breakdown electrochemical synthesis method for producing polyNiMeOSalen suspensions with exceptional ...
Evgenii Beletskii +6 more
wiley +1 more source
Biomimetic ordered nano‐helix WO3 films enable multi‐band electrochromic photothermal management across the visible, near‐infrared, mid‐ and long‐wave infrared spectra, with ultrafast switching (<3 s) and robust durability (>10 000 cycles). These findings establish new paradigms for next‐generation photothermal management systems and energy‐efficient ...
Pan Li +9 more
wiley +1 more source
This review summarizes recent advances in the synthesis and processing of carbon nanotubes and carbon nanocomposites, highlighting structure–property relationships and their applications in energy storage, biomedical systems, and environmental technologies, with emphasis on performance optimization and sustainable material design.
Noor‐ul‐Huda Altaf +9 more
wiley +1 more source
Sintering of Negative and Zero Thermal Expansion Phases in A2M3O12 Family: A Review
This study assesses multiple synthesis methods for A2M3O12 powders, as well as consolidation and sintering routes for preparation of monolithic A2M3O12 ceramics. Correlations between powder features, consolidation, and sintering have been discussed to enable the fabrication of high‐density A2M3O12 monoliths with fine microstructure and improved ...
Marianne D. R. Henriques +1 more
wiley +1 more source
Intrinsic Thermal Transport Properties of ZrB2 From Room Temperature to Melting Point
ABSTRACT Zirconium diboride (ZrB2) is a promising material for extreme‐environment applications, yet its intrinsic high‐temperature thermophysical behavior remains uncertain: Experiments are highly sensitive to processing conditions, simulations omit key mechanisms, and both rarely reach ultrahigh temperatures. Here, we predict the thermal conductivity
Yeojin Lee +3 more
wiley +1 more source
Emerging solution‐processed Ag–Bi and Cu–Sn chalcogenides offer a low‐cost route to efficient near‐infrared photovoltaics. This review highlights their promise, pinpoints critical bottlenecks, and proposes strategies to enhance the performance and viability of sub‐1.1 eV absorbers.
Rashi Kedia +4 more
wiley +1 more source
Emerging Technologies for Biobutanol Production via Syngas Fermentation
Biobutanol production from syngas is promising but limited by microbial energy conservation and gas–liquid mass transfer. This review integrates advances in cultivation control and bioreactor engineering with next‐generation biological tools including metabolic rewiring, co‐cultivation and chain elongation, and electro‐fermentation to enable carbon ...
Xuemei Wang +3 more
wiley +1 more source

