Results 61 to 70 of about 4,318 (176)

Nitrogen Isotope Evidence for Changing Arctic Ocean Ventilation Regimes During the Cenozoic

Geophysical Research Letters, 2022
In this work, I report on the coupling of dinitrogen (N2) fixation and denitrification in oxygen‐deficient waters of the Arctic Ocean during the Paleogene. This coupling fertilized marine phytoplankton growth and favored organic carbon burial.
Jochen Knies
doaj   +1 more source

Advances in BiOCl‐Based Photocatalysts: From Synthesis, Structural Tailoring to Solar Energy Conversion

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Semiconductor photocatalysis represents a pivotal frontier in the quest for sustainable energy and environmental remediation. Among the diverse catalytic materials, Bismuth Oxychloride (BiOCl) has emerged as a particularly promising candidate due to its unique layered structure, featuring [Bi2O2]2+ layers intertwined with halogen ions, which ...
Liu Han, Bin Wu, Jie Wang, Yang Su, Yingtang Zhou, Zhongyi Jiang   +5 more
wiley   +1 more source

Incorporating Nitrifier‐Denitrification Improves Simulation of Nitrous Oxide and Nitric Oxide Emissions Under Intensive Nitrogen Application

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 6, June 2026.
Abstract Nitrous oxide (N2O) and nitric oxide (NO) are key components of global biogeochemical nitrogen (N) cycle, contributing to global warming and atmospheric degradation. Process‐based models have been developed and applied to quantify N2O and NO fluxes from croplands.
Jia Deng, Rodney T. Venterea, Steve Frolking   +2 more
wiley   +1 more source

Unveiling the contribution of particle-associated non-cyanobacterial diazotrophs to N2 fixation in the upper mesopelagic North Pacific Gyre

Communications Biology
Dinitrogen (N2) fixation supports marine life through the supply of reactive nitrogen. Recent studies suggest that particle-associated non-cyanobacterial diazotrophs (NCDs) could contribute significantly to N2 fixation contrary to the paradigm of ...
Christian F. Reeder, Alba Filella, Anna Voznyuk, Arthur Coët, Reece C. James, Tully Rohrer, Angelicque E. White, Léo Berline, Olivier Grosso, Gert van Dijken, Kevin R. Arrigo, Matthew M. Mills, Kendra A. Turk-Kubo, Mar Benavides   +13 more
doaj   +1 more source

Benthic nitrogen fixation in Zostera marina meadows in an upwelling-influenced coastal lagoon

Ciencias Marinas, 2017
Dinitrogen (N2) fixation rates were determined in the phyllosphere and in sediments with and without the presence of eelgrass (Zostera marina) in San Quintín Bay, an upwelling-influenced coastal lagoon in the NE Pacific.
Julieta Hernández-López, Víctor F Camacho-Ibar, Alfonso Macías-Tapia, Karen J McGlathery, Luis W Daesslé, Jose M Sandoval-Gil   +5 more
doaj   +1 more source

Rapid mode switching facilitates the growth of Trichodesmium: A model analysis

iScience
Summary: Trichodesmium is one of the dominant dinitrogen (N2) fixers in the ocean, influencing global carbon and nitrogen cycles through biochemical reactions.
Meng Gao, Jamal Andrews, Gabrielle Armin, Subhendu Chakraborty, Jonathan P. Zehr, Keisuke Inomura   +5 more
doaj   +1 more source

Benthic Dinitrogen Fixation Traversing the Oxygen Minimum Zone Off Mauritania (NW Africa)

Frontiers in Marine Science, 2017
Despite its potential to provide new nitrogen (N) to the environment, knowledge on benthic dinitrogen (N2) fixation remains relatively sparse, and its contribution to the marine N budget is regarded as minor.
Jessica Gier, Carolin R. Löscher, Andrew W. Dale, Stefan Sommer, Ulrike Lomnitz, Tina Treude, Tina Treude   +6 more
doaj   +1 more source

Group 6 Metal NHC and CAAC Complexes in Homogeneous Catalysis: Reactivity Trends and Selected Applications

ChemCatChem, Volume 18, Issue 9, 14 May 2026.
Group 6 metal complexes of Cr, Mo, and W supported by N‐heterocyclic carbenes are emerging as versatile platforms for homogeneous catalysis. This review highlights advances in reduction, hydrogen transfer, oxidation, and small molecule activation, revealing how ligand design controls reactivity and opens sustainable alternatives to noble‐metal ...
Beatriz Garcia, Alberto Bertoldo, Beatriz Royo   +2 more
wiley   +1 more source

N2 cleavage by silylene and formation of H2Si(μ-N)2SiH2

Nature Communications
Fixation and functionalisation of N2 by main-group elements has remained scarce. Herein, we report a fixation and cleavage of the N ≡ N triple bond achieved in a dinitrogen (N2) matrix by the reaction of hydrogen and laser-ablated silicon atoms. The four-
Liyan Cai, Bing Xu, Juanjuan Cheng, Fei Cong, Sebastian Riedel, Xuefeng Wang   +5 more
doaj   +1 more source

Exploring Legume-Rhizobia Symbiotic Models for Waterlogging Tolerance

Frontiers in Plant Science, 2019
Unexpected and increasingly frequent extreme precipitation events result in soil flooding or waterlogging. Legumes have the capacity to establish a symbiotic relationship with endosymbiotic atmospheric dinitrogen-fixing rhizobia, thus contributing to ...
Chiara Pucciariello, Alexandre Boscari, Andrea Tagliani, Renaud Brouquisse, Pierdomenico Perata   +4 more
doaj   +1 more source