Results 41 to 50 of about 42,654 (293)
A high-resolution analysis of the distribution of major and trace elements across the Cretaceous/Paleogene boundary (KPgB) in the distal section of Agost (SE Spain) was performed.
Claudia Sosa-Montes de Oca +3 more
doaj +1 more source
Desenvolvimento de métodos para análise inorgânica de biodiesel, matérias-primas e co-produtos utilizando espectrometria atômica [PDF]
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Química.A concentração de metais e outros elementos no biodiesel, suas matérias-primas e co-produtos depende de vários ...
Chaves, Eduardo Sidinei
core
A high‐Zn2+‐transference hydrogel electrolyte of ex‐PDADAM is developed via anion exchange at quaternary ammonium sites, achieving high Zn2+ transference number (0.86), ionic conductivity (8.10 mS cm−1), and toughness (51.25 MJ m−3). Symmetric cells are operated stably for over 2000 h, while flexible pouch cells retain 90.9% capacity after 300 cycles ...
Jung Woo Hong +8 more
wiley +1 more source
Szilícium tartalom meghatározása üzemi vízmintákban ICP-OES módszerrel
A szakdolgozatom elkészítése során kazánvizek és egyéb üzemi vízminták szilícium tartalmát vizsgáltam induktív csatolású plazma optikai emissziós spektrometriával (ICP-OES) és UV-VIS spektrofotometriás módszerrel mért értékekkel hasonlítottam össze a ...
Liba, Károly
core
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje +7 more
wiley +1 more source
DETERMINATION OF VANADIUM IN TURKISH ASPHALTITES; pp. 331–338 [PDF]
Vanadium is found in many rocks and minerals, including asphaltite. Asphaltite is one of the naturally occurring black, solid bitumens, which are soluble at heating in carbon disulfide and fuse.
I. AYDIN +3 more
doaj +1 more source
Phase boundaries between Co2P and CoP are constructed through a controlled transformation of Co to Co2P‐CoP branched nanoparticles. The polycrystalline mixed‐phase Co2P‐CoP branches are enriched with phase boundaries that stabilize Co active sites for OER. This work highlights phase boundary engineering as a powerful approach to tailor active sites and
Zeno R. Ramadhan +10 more
wiley +1 more source
The analytical performance of axially and radially viewed inductively coupled plasma optical emission spectrometers (AX-ICP OES and RD-ICP OES, respectively) were evaluated in terms of the Mg II/Mg I ratio, matrix effects, and detection limits (LOD). All
Silva Júlio C. J. +2 more
doaj
Heavy metals in the samples of coals and combustion residues (bottom ash and fly ash) from Pacitan coal-fired power plant (CPP) have been identified by using NAA, XRF, and ICP-OES methods.
Agus Taftazani +3 more
doaj +1 more source
Accurate determination of the size and the number of nanoparticles plays an important role in many different environmental studies of nanomaterials, such as fate, toxicity, and occurrence in general.
Nokwanda Hendricks +2 more
doaj +1 more source

