Results 31 to 40 of about 99,879 (261)
Earth Surface Processes and Landforms, Volume 48, Issue 1, Page 198-214, January 2023., 2023 The Atlantic coast of NW Spain, where shingle beaches appear today, has suffered an important mobilization of dunes from a sea level about −120 m (bpsl), 20 ky ago. This aeolization caused the collapse of coastal/fluvial ecosystems (as forests) until the Late Holocene.
Carlos Arce Chamorro +3 more
wiley +1 more source
Chemical Bonds Containing Hydrogen: Choices for Hydrogen Carriers and Catalysts
Angewandte Chemie, EarlyView.Hydrogen carriers utilizing B─H, C─H, N─H, and O─H bonds are evaluated for their potential in hydrogen storage and release. Key candidates such as methanol, ammonia, and formic acid are examined with a focus on critical factors influencing performance, including the nature of chemical bonds, reaction pathways, and catalytic processes.
James Cashel +9 more
wiley +2 more sources
Covalent Organic Frameworks for Photocatalysis
Advanced Materials, EarlyView.This review provides an overview of recent advances in covalent organic frameworks (COFs) for photocatalysis, focusing on sustainable energy applications like water splitting, hydrogen peroxide generation, and CO2 and N2 reduction. It discusses design principles, structure‐function relationships, challenges in COF photocatalysis, and strategies to ...
Bikash Mishra +6 more
wiley +1 more source
Global Challenges, Volume 7, Issue 1, January 2023., 2023 Bibliometric and systematic analysis shows research from 1990 to 2020 reveals the versatility of magnetite nanoparticles and their evolving usage in a number of fields. Initially focusing on the environmental and industrial applications, to the biomedical applications. However, recent research highlights their toxicity and potential detrimental effects
Charlotte L. Fleming +3 more
wiley +1 more source
Four‐Centre, Multielectron Bonding in Rare‐Earth Germole Sandwich Complexes
Angewandte Chemie, EarlyView.Stepwise one‐ and two‐electron reduction of the dimeric germole‐ligated sandwich complexes [(η5‐CpGe)M(η5‐Cpttt)]2 (M = Y, Gd, Dy) produces the isostructural complex anions [{(η5‐CpGe)M(η5‐Cpttt)}2]− and [{(η5‐CpGe)M(η5‐Cpttt)}2]2−, respectively. The additional electrons populate bonding molecular orbitals extending across the {M2Ge2} rings, resulting ...
Siddhartha De +6 more
wiley +2 more sources
The malleability of uranium: manipulating the charge-density wave in epitaxial films [PDF]
, 2014 We report x-ray synchrotron experiments on epitaxial films of uranium, deposited on niobium and tungsten seed layers. Despite similar lattice parameters for these refractory metals, the uranium epitaxial arrangements are different and the strains propagated along the a-axis of the uranium layers are of opposite sign.
arxiv +1 more source
Titanium Oxysulfate‐Derived 1D Lepidocrocite Titanate Nanostructures
Advanced Materials Interfaces, EarlyView.A novel synthesis protocol is presented for creating high‐quality titania nanofilaments. This method transcends the limitations of traditional techniques, leveraging a solution precipitation process fine‐tuned for lower temperatures and minimal reagent use. The result?
Sukanya Maity +8 more
wiley +1 more source
The local health impacts of natural resource booms
Health Economics, Volume 32, Issue 2, Page 462-500, February 2023., 2023 Abstract This paper uses novel micro‐data on natural resources and administrative health data in Brazil to study how economic booms in minerals affect health at birth. By implementing a reduced‐form estimation of shift‐share research designs, the identification strategy relies on the exogeneity of global commodity prices to municipality‐specific health
Elisa M. Maffioli
wiley +1 more source
Ultraslow Wave Nuclear Burning of Uranium-Plutonium Fissile Medium on Epithermal Neutrons [PDF]
Progress in Nuclear Energy, Vol. 83, August 2015, pp. 105-122, 2014 For a fissile medium, originally consisting of uranium-238, the investigation of fulfillment of the wave burning criterion in a wide range of neutron energies is conducted for the first time, and a possibility of wave nuclear burning not only in the region of fast neutrons, but also for cold, epithermal and resonance ones is discovered for the first ...
arxiv +1 more source
Nanohybrid of Silver‐MXene: A Promising Sorbent for Iodine Gas Capture from Nuclear Waste
Advanced Materials Interfaces, EarlyView.Silver‐MXene (Ag‐Ti3C2Tx) nanohybrids effectively captured iodine gas at 150 °C, with Ag nanoparticles loaded onto MXene via silver nitrate reduction. Upon exposure to iodine gas, silver iodide forms, confirming successful adsorption. Ag‐Ti3C2Tx shows superior iodine uptake (946 mg g−1) compared to conventional sorbents, demonstrating its potential as ...
Karamullah Eisawi +7 more
wiley +1 more source