Results 51 to 60 of about 163,369 (269)

Pulsed Oxidative–Reductive Electrolysis Over Dual Cu and Co Single‐Atom Sites for Urea Electrosynthesis

Advanced Materials, EarlyView.
Alternating oxidative–reductive pulses synchronize CO2‐derived *CO and NH3‐derived *NHx intermediates over dual Cu and Co single‐atom sites, enabling urea and ethyl urea formation with a total C─N Faradaic efficiency of 42 ± 4%. In situ spectroscopy and theoretical calculations elucidate complementary Cu and Co functions, while oxidative controls ...
Putri Ramadhany, Peiqi Qiu, Thành Trần‐Phú, Denny Gunawan, Bernt Johannessen, Rosalie K. Hocking, Yan Jiao, Rose Amal, Rahman Daiyan   +8 more
wiley   +1 more source

Fluid-driven element mobility resets plagioclase rubidium strontium and barium clocks while potassium feldspar resists

Communications Earth & Environment
Rubidium, cesium, strontium, barium and their isotopes are employed as tracers of magmatic differentiation and fluid-mediated metasomatism, but their mobility during mineral-scale alteration remains uncertain.
Hao-Xiang Zhang, Shao-Yong Jiang, Si-Qi Liu, Hui-Min Su, Wen-Tian Li   +4 more
doaj   +1 more source

Applications of Isotopes to Chemical Problems [PDF]

, 1942
In the first part of this thesis is described research in nuclear physics on radioactive isotopes of barium, cesium, and bismuth. Isotopes of barium and cesium were chemically identified and their properties were determined.
Cooley, Robert Alonzo
core   +1 more source

Robotics in Ionizing Radiation Environments: Vulnerabilities, Hardening, and Future Directions

Advanced Robotics Research, EarlyView.
Radiation exposure causes cumulative degradation in robotic sensors, actuators, and electronic logic, often leading to undetected failures. This study maps component vulnerabilities, evaluates hardening and shielding strategies, and identifies testing gaps that must be addressed to enable next‐generation radiation‐tolerant robotic systems.
Francis A. K. Djirackor, Josephine T. Djirackor, Amanuel Abrdo Tereda, Sun Yi, Younho Seong   +4 more
wiley   +1 more source

Methane Activation by B5+ Toward a CB5H2+ Isomer Containing a Planar Tetracoordinate Carbon Atom

Angewandte Chemie, EarlyView.
Methane activation by B5+ yields CB5H2+ through H2 elimination. Electronic‐structure calculations connect the nascent dehydrogenation product to a low‐lying isomer containing a planar tetracoordinate carbon atom. ABSTRACT Planar tetracoordinate carbon (ptC) motifs have been identified predominantly in the global‐minimum structures of gas‐phase clusters
Qin‐Wei Zhang, Qiang Chen, Fernando Murillo, Filiberto Ortíz‐Chi, Rui‐Nan Yuan, Fernando Martínez‐Villarino, Aura Gómez‐Heredia, Hong Niu, Rui Wei, Jiao‐Jiao Chen, Yan‐Bo Wu, Gabriel Merino   +11 more
wiley   +2 more sources

Enrichment characteristics and biological effects of 133CsCl in black porgy Acanthopagrus schlegelii

Frontiers in Marine Science
The release of cesium (Cs) isotopes from treated nuclear-contaminated water at Japan’s Fukushima Daiichi Nuclear Power Plant (FDNPP) has raised global concern due to their potential long-term environmental impacts.
Caoqun Zheng, Gongye Liu, Liang Shao, Rabia Zeb, Lei Wang, Hongmai Zhang, Ronghui Zheng, Chao Fang, Youyou Huang, Tao Yu, Jun Bo   +10 more
doaj   +1 more source

Nanoscale Secondary Ion Mass Spectrometry for Quantifying Membrane Fouling: Fouling Layer Structure and Chemical Interaction

Advanced Science, EarlyView.
Nanoscale secondary ion mass spectrometry (Nano SIMS) is established as a powerful analytical tool to visualize and quantify the membrane fouling layers. ABSTRACT Membrane technology has garnered considerable attention for applications in wastewater treatment and resource recovery. Nevertheless, membrane fouling remains a major barrier, yet the lack of
Mengfei Wu, Xinhua Wang, Pin Zhao, Weilong Song, Ming Xie   +4 more
wiley   +1 more source

Quantifying Atmospheric Fallout of Fukushima-Derived Radioactive Isotopes in Mushrooms in the Hawaiian Islands [PDF]

, 2016
In March of 2011, the radioisotopes cesium-134 and cesium-137 were released into the atmosphere from the damaged Fukushima Dai-ichi Nuclear Power Plant. This study estimated the magnitude of atmospheric fallout of these isotopes on Oʻahu and Hawaiʻi, and
McKenzie, Trista
core   +1 more source

Demonstration of a Two‐Electron Pathway in Piezoelectric Mechanochemistry: Synthesis and Mechanical Adaptation of Polythiourethane

Angewandte Chemie, EarlyView.
A mechano‐triggered polythiourethane (PTU) synthesis mediated by a two‐electron pathway. The polymerization proceeds efficiently (<1 h) under focused ultrasound, achieving >90% conversion without any conventional base catalyst. The approach demonstrates broad compatibility with various thiol/isocyanate monomer combinations, highlighting its synthetic ...
Yixiao Dong, Farsa Ram, John Brownridge, Thalia Haines, Pin‐Ruei Huang, María José Román‐Vasquez, Jun Wang, Aaron P. Esser‐Kahn   +7 more
wiley   +2 more sources

Materials used for enriching radioactive cesium isotopes from seawater

Frontiers in Marine Science
Radiocesium, particularly 134Cs and 137Cs, is among the most extensively studied anthropogenic radionuclides in the marine environment. Their dispersal in seawater and entry into marine food webs make them relevant to marine radioecology and the tracing ...
Chen Ling, Siling Qian, Kaige Zhang, Shaohong Zhu, Yufei Gu, Zijun Ma, Yupeng Ren   +6 more
doaj   +1 more source