Results 51 to 60 of about 47,869 (256)

Ultrafast Thermal Shock Synthesis of CuNiSnLa Medium‐Entropy Metallic Glass for Sustainable Nitrogen Fixation via Plasma‐Coupled Electrocatalysis

Advanced Functional Materials, EarlyView.
This work introduces an ultrafast thermal shock strategy to synthesize a CuNiSnLa medium‐entropy metallic glass (MEMG). The rapid heating and cooling process generates a robust, highly active catalyst for electrocatalytic nitrate reduction to ammonia (NRA).
Hongbo Chen, Peng‐Jun Deng, Yang Liu, Shenglong Huang, Shuo Sun, Haoxuan Li, Jiajia Lu, Panagiotis Tsiakaras   +7 more
wiley   +1 more source

Geochemical Characteristics of Soil Selenium and Influencing Factors of Selenium Bioavailability in Rice Root Soils in Qingxi Area, Ganxian County, Jiangxi Province

Yankuang ceshi, 2021
BACKGROUND The south of Jiangxi Province is a typical geographical distribution area of selenium deficiency. However, some research results in recent years indicate that the rice has high selenium content.
LIU Bing-quan, SHA Min, XIE Chang-yu, ZHOU Qiang-qiang, WEI Xing-xing, ZHOU Fan   +5 more
doaj   +1 more source

Atomically Dispersed Ni Site Catalysts Accelerating Sluggish Sulfur Redox Kinetics in Nonaqueous Zn‐S Batteries

Advanced Functional Materials, EarlyView.
An atomically dispersed Ni catalyst featuring Ni‐N4 coordination is developed as a sulfur host for nonaqueous Zn─S batteries. This configuration modulates the electronic structure to lower activation barriers during rate‐limiting steps and promotes a robust ZnF2‐rich cathode‐electrolyte interphase, thereby accelerating sulfur redox kinetics ...
Junhyuk Ji, Dongwoo Kim, Nuri Moon, Daehwan Kim, Keon Kim, Nahyung Kim, Young Yong Kim, Won Bae Kim   +7 more
wiley   +1 more source

Spatially Regulated Lithium Plating via Li2O‐Rich Interphase Enables Durable Fast‐Charging Hybrid Lithium Batteries

Advanced Functional Materials, EarlyView.
A Li2O‐rich solid electrolyte interphase (SEI) is engineered on graphite through a propylene carbonate‐based electrolyte to spatially regulate Li plating. The homogeneous interphase lowers Li nucleation barriers, promotes conformal Li deposition around graphite particles, and suppresses dendritic accumulation, enabling durable hybrid Li‐ion/Li‐metal ...
Robert Kuphal, Jingjing Liu, Junxiang Liu, Tao Ma, Yi Ding, Mahmood Haq, Satish Udpa, Stephen J. Harris, Chengcheng Fang   +8 more
wiley   +1 more source

Detecting Elemental Impurities by Inductively Coupled Plasma Mass Spectrometry in Russian Radiopharmaceuticals

Регуляторные исследования и экспертиза лекарственных средств
INTRODUCTION. Radiopharmaceutical manufacturers should assess potential negative impact of elemental impurities on the quality of their products using real data of their elemental contamination.
Yu. N. Shvetsova, A. A. Erina, V. M. Shchukin, N. E. Kuz'mina, R. D. Ruziev, D. A. Pripadchev, M. A. Kuznetsov   +6 more
doaj   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
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, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Capabilities and Limitations of High-Resolution – Inductively Coupled Plasma – Mass Spectrometry (ICP-MS) Möglichkeiten und Grenzen der hochauflösenden Plasma-Massenspektrometrie (ICP-MS)

CHIMIA, 2001
Coupling inductively coupled plasmas with sector field mass spectrometers has led to a remarkable improvement of the analytical capabilites in the field of trace element determinations during the last decade.
Christoph Moor, Wim Devos, Christian Bissig   +2 more
doaj  

Element Analysis of Small and even Smaller Objects by ICPMS and LA-ICPMS

CHIMIA, 2014
Inductively coupled plasma mass spectrometry is increasingly used for non-traditional applications such as the analysis of solids at high spatial resolution when combined with laser ablation or the analysis of engineered nanoparticles.
Olga Borovinskaya, Marcel Burger, Luca Flamigni, Sabrina Gschwind, Daniel Tabersky, Hao A. O. Wang, Bodo Hattendorf, Joachim Koch, Detlef Günther   +8 more
doaj   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Iron Redox Speciation Analysis Using Capillary Electrophoresis Coupled to Inductively Coupled Plasma Mass Spectrometry (CE-ICP-MS)

Frontiers in Chemistry, 2019
Neuronal iron dyshomeostasis occurs in multiple neurodegenerative diseases. Changes in the Fe(II)/Fe(III) ratio toward Fe(II) is closely related to oxidative stress, lipid peroxidation, and represents a hallmark feature of ferroptosis.
Bernhard Michalke, Desiree Willkommen, Vivek Venkataramani, Vivek Venkataramani   +3 more
doaj   +1 more source