Results 111 to 120 of about 4,233 (285)

Using perovskite to determine the pre-shallow level contamination magma characteristics of kimberlite [PDF]

, 2014
It remains difficult to obtain reliable geochemical signatures of uncontaminated kimberlite magma from bulk rock studies due to the combined effects of crustal assimilation and element mobility during post-emplacement alteration processes.
Hawkesworth, Chris J., Sarkar, Chiranjeeb, Storey, Craig   +2 more
core   +2 more sources

A Dual‐Piezoelectric Metal–Organic Cage/COF Z‐Scheme Heterojunction for Solar‐Mechanical Water Splitting

Advanced Science, EarlyView.
A dual‐piezoelectric Z‐scheme heterojunction is constructed by integrating a piezoelectric metal–organic cage (MOC‐FA3) with a β‐ketoenamine‐linked covalent organic framework (S‐COF). This design enables efficient solar‐mechanical energy conversion, achieving remarkable piezo‐photocatalytic pure water splitting for simultaneous H2 and H2O2 production ...
Xin‐Ao Li, Yixuan Wang, Zi‐Zhan Liang, Xin‐Bang Peng, Li‐Min Xiao, Li Gong, Xinyi Yang, Bo Zou, Yecheng Zhou, Jun‐Min Liu   +9 more
wiley   +1 more source

Zircon U-Pb age, geochemical characteristics, and tectonic implications of the early Permian ultrabasic dykes in the Harlik Mountain, east Tianshan, Xinjiang

Dizhi lixue xuebao
Objective  During multiple stages of magmatic activity in the Harlik Mountains of the east Tianshan, extensive granitic and mafic dyke swarms were formed.
DU Xiaofei, WANG Wei, ZHANG Chuanlin, MA Huadong, ZHU Bingyu, QIU Lin   +5 more
doaj   +1 more source

Idades U-Pb de zircão detrítico da sequência metassedimentar superior na região do Greenstone Belt de Guarinos, Goiás

Geologia USP. Série Científica, 2017
Na porção norte do Bloco Arqueano de Goiás ocorrem dois greenstone belts (Guarinos e Pilar de Goiás) cobertos por uma sequência metassedimentar, atribuída por diversos autores ao Grupo Araxá e por outros ao Grupo Serra da Mesa/Serra Dourada e, ainda ...
Alex Joaquim Choupina Andrade Silva, Luiz Sérgio Amarante Simões   +1 more
doaj   +1 more source

Depth profiling by femtosecond-LA-(MC-)ICP-MS for the investigation of chemical and isotopic diffusion profiles with high spatial resolution [PDF]

, 2022
Stefan Weyer, Martin Oeser, Ralf Dohmen, I. Horn   +3 more
openalex   +1 more source

Characterization of nuclear fuels by ICP mass-spectrometric techniques [PDF]

, 2018
Isotopic analyses of radioactive materials such as irradiated nuclear fuel are of major importance for the optimization of the nuclear fuel cycle and for safeguard aspects.
Günther-Leopold, Ines, Kivel, Niko, Kobler Waldis, Judith, Wernli, Beat   +3 more
core  

Bio‐Inspired Cascade Photocatalysis on Fe Single‐Atom Carbon Nitride Upcycles Plastic Wastes for Effective Acetic Acid Production

Advanced Energy Materials, EarlyView.
This work demonstrates a novel cascade photocatalysis concept using Fe single‐atom catalysts (Fe@C3N4 SAC) to directly upcycle plastics (PET, PP, PE, PVC) into valuable acetic acid at ambient conditions. Inspired by microbial degradation, the bifunctional cascade photocatalyst combines Fenton‐like oxidation and CO2 photoreduction, as validated by ...
Wei Wei, Cheng Du, Jiawei Ge, Xiang Wang, Zuolong Chen, Meng Zhang, Tao Guo, Lei Wang, Maoyu Wang, Yuzi Liu, Hua Zhou, Chengjun Sun, Ning Chen, Weifeng Chen, Brant Billinghurst, Mohsen Shakouri, Peter Sprenger, Fatemeh Fani Sani, Yulian Quan, Brian Kendall, Roy Brouwer, Yimin A. Wu   +21 more
wiley   +1 more source

Lead Isotope Homogeneity of NIST SRM 610 and 612 Glass Reference Materials: Constraints from Laser Ablation Multicollector ICP‐MS (LA‐MC‐ICP‐MS) Analysis [PDF]

, 2008
Adam J.R. Kent
openalex   +1 more source

Mixed‐Phase TiO2 Nanotubes Enhance Ru Nanoparticle Activity for Hydrogen Evolution in pH‐Neutral Electrolytes

Advanced Energy and Sustainability Research, EarlyView.
Efficient water electrolysis in NaBr electrolyte is achieved using TiO2 nanotube supports decorated with Ru nanoparticles. A cooperative “job‐sharing” effect between the TiO2 proton‐storage support that provides protons to the Ru catalyst enhances hydrogen evolution, minimizes Ru demand and polarization losses, and delivers stable performance ...
Matan Sananis, Elena Davydova, Anna Breytus, Avner Rothschild   +3 more
wiley   +1 more source

Comparative Investigation of Three Mg Doping Strategies in NMC811 Cathodes for High‐Energy Density Lithium‐Ion Batteries

Batteries &Supercaps, EarlyView.
Magnesium (Mg) doping is explored as a stabilization strategy for high‐capacity LiNi0.8Mn0.1Co0.1O2 (NMC811) cathodes. Three doping routes are compared, revealing that solid‐state lithiation delivers the best cycling stability. Operando X‐ray diffraction and electrochemical dilatometry link reduced cation mixing and lattice stabilization to improved ...
Anna Kobets, Filipp Obrezkov, Xiangze Kong, Jouko Lahtinen, Tao Hu, Seyedabolfazl Mousavihashemi, Basit Ali, Ulla Lassi, Tanja Kallio   +8 more
wiley   +1 more source