Results 191 to 200 of about 128,867 (311)

Iron Nanoparticles on Porous Carbon Discs: Electrocatalysts with Over 30% Energy Efficiencies for the Production of Ammonia from Nitrate

Advanced Science, EarlyView.
Iron nanoparticles on carbon disc matrixes (CD@Fe) are engineered, showing a high surface area of 424 m2 g−1 and micro/mesoporosity. The CD@Fe showed promising electrocatalytic performance for the nitrate reduction to ammonia with ammonia yield rates of 1.8–13.5 mg h−1 cm−2 at overpotentials of −0.2–−0.6 V (vs.
Daon Park, Jinuk Choi, Ji Yong Shim, Yoon Kee Kim, Jina Park, Chang Wan Kang, So Young Park, Tae‐Yong An, Hyojung Lim, Subramani Surendran, Kyoung Chul Ko, Uk Sim, Seung Uk Son   +12 more
wiley   +1 more source

Ecological Insights Into the Extinct Korean Sea Lion (Zalophus japonicus) in Korea Based on Stable Isotope Analysis of Bone Collagen. [PDF]

Rapid Commun Mass Spectrom
Lee YJ, Kim MJ, Kim JS, Kwak SN, Lee SH.
europepmc   +1 more source

Response Characteristics of Hydrogen, Oxygen, and Carbon Isotope Composition to Atmospheric Temperature and Seismic Activity in Spring Water Hydrogeochemistry

Zhihua Zhou, Xiao Ren, Jun Zhong, X. Feng   +3 more
openalex   +1 more source

Nanoconfinement‐Steered Molecular Preorganization Enables Efficient Monoethanolamine Degradation through Electronically Modulated High‐Valent Iron–Oxo Pathways

Advanced Science, EarlyView.
Precise modulation of reaction pathways remains an unresolved challenge in peroxymonosulfate‐activated advanced oxidation processes. The spatial preorganization strategy in engineered confinement architecture enables regioselective bond cleavage in monoethanolamine via synergistic proton–electron transfer, redirecting its degradation from nonselective ...
Lin Zhang, Qin Dai, Xinyue Chen, Hang Yuan, Lei Xing, Zhimo Fang, Xiuze Li, Xiangke Wang, Lihui Zhang, Junping Zhao, Qiangwei Li, Lidong Wang   +11 more
wiley   +1 more source

Correction: Expansion of forest cover and coeval shifts in Later Stone Age land-use at Taforalt and Rhafas Caves, Morocco, as inferred from carbon isotopes in ungulate tooth enamel. [PDF]

PLoS One
Worthey KB, Fernandez P, Turner E, Steele TE, Humphrey L, Barton RNE, Hublin JJ, Bouzouggar A.   +7 more
europepmc   +1 more source

Selective and Long‐Term Stable Ammonia Electrolysis Using Pt–WOx Catalysts with Suppressed NOx Formation and Enhanced Activity

Advanced Science, EarlyView.
This study reports photodeposited Pt nanoparticles on WOx nanowires (Pt–WOx (P)) as a bifunctional catalyst for ammonia electrolysis. Strong metal–support interactions promote electron transfer to Pt, lowering the energy barrier of the rate‐determining step and suppressing NOx formation.
Changhyun Lim, Hyogyun Roh, Hyeon Kim, Dayoung Kwon, Okkyun Seo, Jiayi Tang, Takeshi Watanabe, Wooyul Kim, Donghwa Lee, Kijung Yong   +9 more
wiley   +1 more source

Geochemical fingerprints of dolomitization in Upper Jurassic Arabian carbonate platform: Evidence from carbon, oxygen, strontium and magnesium isotopes

Xiaolan Jia, Weiqiang Li, Zhiguang Xia, Mohammad Alsuwaidi   +3 more
openalex   +1 more source

Carbon Isotope Ratios in Crassulacean Acid Metabolism Plants [PDF]

, 1976
Stan R. Szarek, John H. Troughton
openalex   +1 more source

USING STABLE ISOTOPES TO ESTIMATE TROPHIC POSITION: MODELS, METHODS, AND ASSUMPTIONS

, 2002
D. Post
semanticscholar   +1 more source

Boron Nitride Nanomaterials Trigger Immunomodulatory Effects in Human Broncho‐Epithelial Cells by Modulating Eicosanoid Lipid Signaling

Advanced Science, EarlyView.
This study demonstrates that BNNT exposure disrupts lipid homeostasis in bronchial epithelial cell cultures and activates eicosanoid lipid biosynthesis, producing inflammatory lipid mediators like leukotrienes. These effects are more pronounced in asthmatic cell cultures compared to healthy ones.
Govind Gupta, Jonas Bossart, Sènan Mickael D'Almeida, Luis Augusto Visani de Luna, Christoph Schwärzler, Tingting Fu, Vanesa Ayala‐Nunez, Alexander Gogos, Marija Buljan, Vera M Kissling, Emmanuel Flahaut, Miguel Garcia, Cyrill Bussy, Peter Wick, Tina Buerki‐Thurnherr   +14 more
wiley   +1 more source