Results 131 to 140 of about 4,233 (285)

Geological age of the Yunyang dinosaur eggs revealed by in-situ carbonate U-Pb dating and its scientific implications

Frontiers in Earth Science
The Cretaceous Period, marked by global events such as volcanic activity, oceanic anoxic episodes, and the end-Cretaceous mass extinction, has been extensively studied in marine records.
Qingmin Chen, Xing Cheng, Xing Cheng, Jian Wang, Bi Zhao, Bi Zhao, Bi Zhao, Shukang Zhang, Youfeng Ning, Gaohong Wang, Kaikai He, Wenshuo Zhang, Dongxiang Yu, Jiangli Li, Jiangli Li, Yarui Zou, Yarui Zou, Gang Chen, Min Li, Hai Cheng, Hai Cheng   +20 more
doaj   +1 more source

Synergistic Fe–Si Dual‐Site Pathway Engineering in Biomass‐Derived Carbon Matrix for High‐Performance Oxygen Reduction Reaction

Carbon Energy, EarlyView.
We report a dual‐atomic Si–Fe–N–C catalyst synthesized from nitrogen‐rich pinecones and an Fe porphyrin precursor. The inherent Si and N in pinecones form a porous Si–N–C framework that stabilizes Fe atoms during pyrolysis, yielding robust Si–Fe dual sites.
Min Su Cho, Yanmei Zang, Sung Joon Park, Byeong‐Seon An, Ho Jin Lee, Ashishi Gaur, Ghulam Ali, Mingony Kim, Kyung Yoon Chung, Sungbin Park, Yung‐Eun Sung, Daehae Kim, Ki Jae Kim, Chang Woo Myung, HyukSu Han   +14 more
wiley   +1 more source

In situ ⁸⁷Rb–⁸⁷Sr analyses of terrestrial and extraterrestrial samples by LA-MC-ICP-MS/MS with double Wien filter and collision cell technologies

, 2022
Nicolas Dauphas, Timo Hopp, Grant Craig, Zhe J. Zhang, Maria C. Valdes, P. R. Heck, B. L. A. Charlier, Elizabeth A. Bell, T. Mark Harrison, A. M. Davis, Laure Dussubieux, Patrick Ryan Williams, M. J. Krawczynski, Claudia Bouman, Nicholas S. Lloyd, D. L. Tollstrup, Johannes Schwieters   +16 more
openalex   +2 more sources

In situ boron isotope determination in amphibole by LA-MC-ICP-MS: matrix effects and new potential reference materials [PDF]

The B isotope systematics (δ11B) in amphibole offer insights into fluid- and melt-dominated processes in the crust-mantle system. We developed an analytical strategy for in situ B isotope determination in amphibole using LA- MC-ICP-MS on material with a ...
Agostini, Samuele, Cannaò, Enrico, Sessa, Gianluca, Tiepolo, Massimo   +3 more
core   +1 more source

Eco‐Friendly Synthesis of Cobalt Phthalocyanine for High‐Efficiency CO2${\rm CO}_{2}$ Electroreduction

Chemistry – A European Journal, EarlyView.
A sustainable synthesis of cobalt phthalocyanine (CoPc) using low‐impact solvents yields high‐performance electrocatalysts with reduced waste (E‐factor 18.6). When integrated into gas diffusion electrodes, CoPc achieves up to 12% Faradays efficiency for CO2‐to‐methanol and 65% CO2‐to‐CO conversion, aligning with state‐of‐the‐art materials and enabling ...
Gloria Zanotti, Federica Palmeri, Venanzio Raglione, Abdolhamid Khodadadi, Camille Tabaries, Jerome Capitolis, Mathieu Prevot, Laurent Piccolo, Mahmoud Zendehdel, Roberto Flammini, Giorgio Contini   +10 more
wiley   +1 more source

Progress and Application of Mass Spectrometry Techniques for Single Particle Analysis in Nuclear Safeguard

Zhipu Xuebao
The nuclear Non-proliferation Treaty (NPT) is one of the cornerstones regulating the international order. To make sure that all the member states fulfill their obligation under the treaty, the International Atomic Energy Agency (IAEA) has constructed a ...
Li-ping WANG, Wei-hua XIE, Peng-hui XIONG, Si-wei SHI, Ling ZHANG, Zhen QIN   +5 more
doaj   +1 more source

Microplastics and nanoplastics in water: Improving removal in wastewater treatment plants with alternative coagulants

The Canadian Journal of Chemical Engineering, EarlyView.
The contaminant removal performance of a conventional coagulant, alum, and alternative coagulants, aluminium chlorohydrate (ACH) and ACH + pDADMC, are compared in challenging wastewater treatment conditions (pH >7.8). The interactions of each coagulant with a negatively charged surface are depicted based on quartz crystal microbalance with dissipation ...
Sinan Abi Farraj, Mathieu Lapointe, Rafael S. Kurusu, Nathalie Tufenkji   +3 more
wiley   +1 more source

Constraining Geogenic Sources of Boron Impacting Groundwater and Wells in the Newark Basin, USA

Hydrology
The Newark Basin comprises Late Triassic and Early Jurassic fluvio-lacustrine rocks (Stockton, Lockatong, Passaic, Feltville, Towaco, and Boonton Formations) and Early Jurassic diabase intrusions and basalt lava flows.
Larbi Rddad, Steven Spayd
doaj   +1 more source

Lead isotope analysis of Meroitic period glass from Nubia with LA‐MC‐ICP‐MS [PDF]

, 2022
Juliet V. Spedding
openalex   +1 more source

Crystallization of Cathode Active Material Precursors from Tartaric Acid Solution

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
This work investigates a novel approach for closing the gap between recycling and production of lithium‐ion battery cathode material. The new concept is based on antisolvent crystallization of metal carboxylates, which can be directly used as precursors in production of cathode material.
Chunyan Ma, Mona Mohamoud, Tiaan Punt, Jinlong Li, Michael Svärd, Kerstin Forsberg   +5 more
wiley   +1 more source