Results 91 to 100 of about 354,003 (282)

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

Advanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim, Mehran Nabahat, Laia Pascua‐Solé, Isabel Serrano, Ilaria Lucentini, Xènia Garcia, Marina Armengol‐Profitós, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Núria J. Divins, Ignacio J. Villar‐Garcia, Virginia Pérez‐Dieste, Carlos Escudero, Carlo Marini, Jordi Llorca, Eloi Pineda, Pere Bruna, Lluís Soler   +17 more
wiley   +1 more source

Desafios e reflexões da COP 28

Processando o Saber
A COP 28, Conferência das Partes sobre Mudanças Climáticas, destaca-se como um evento crucial para discutir e abordar os desafios relacionados aos gases de efeito estufa (GEE) em um mundo cada vez mais impactado pelas mudanças climáticas.
Fernanda Macedo, Elaine Cristina Araújo, Izabel da Silva Andrade, Thaís Correa, Vagner dos Santos Macedo   +4 more
doaj  

Near-zero methane emission from an abandoned boreal peatland pasture based on eddy covariance measurements.

PLoS ONE, 2017
Although estimates of the annual methane (CH4) flux from agriculturally managed peatlands exist, knowledge of controls over the variation of CH4 at different time-scales is limited due to the lack of high temporal-resolution data.
Mei Wang, Jianghua Wu, Junwei Luan, Peter Lafleur, Huai Chen, Xinbiao Zhu   +5 more
doaj   +1 more source

3D‐Printable, Honeycomb‐Inspired Tissue‐Like Bioelectrodes for Patient‐Specific Neural Interface

Advanced Materials, EarlyView.
3D printed MRI‐compatible tissue‐like neural electrodes tailored to individual gyral patterns. This honeycomb‐inspired printable gel electrode (HiPGE) employs a bioinspired architecture with soft hydrogels, engineered to match the softness of brain tissue.
Marzia Momin, Luyi Feng, Xiaoai Chen, Salahuddin Ahmed, Basma AlMahmood, Li‐Pang Huang, Jiashu Ren, Xinyi Wang, Hyunjin Lee, Samuel R. Cramer, Nanyin Zhang, Sulin Zhang, Tao Zhou   +12 more
wiley   +1 more source

Mechanistic Modeling of Microtopographic Impacts on CO2 and CH4 Fluxes in an Alaskan Tundra Ecosystem Using the CLM-Microbe Model [PDF]

, 2019
Spatial heterogeneities in soil hydrology have been confirmed as a key control on CO2 and CH4 fluxes in the Arctic tundra ecosystem. In this study, we applied a mechanistic ecosystem model, CLM-Microbe, to examine the microtopographic impacts on CO2 and ...
Gu, B, Hahn, MS, He, L, Kumar, J, Lipson, DA, Oechel, WC, Ricciuto, DM, Thornton, PE, Torn, MS, Wagner, R, Wang, Y, Wullschleger, SD, Xu, X, Yuan, F, Yuan, F, Zona, D   +15 more
core   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

Advanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria, Meng Yin, Stefan Neuhauser, Vlasis G. Mavrantzas, Ying Chen, Ken Suzuki, Andreas T. Güntner   +6 more
wiley   +1 more source

Indirect long-term global radiative cooling from NOx emissions [PDF]

, 2001
Anthropogenic emissions of short‐lived, chemically reactive gases, such as NO x and CO, are known to influence climate by altering the chemistry of the global troposphere and thereby the abundance of the greenhouse gases O3, CH4 and the HFCs.
Akimoto, H., Prather, M. J., Wild, Oliver   +2 more
core   +2 more sources

Science‐Towards‐Technology Breakthrough in CO2 Electroreduction: Multiphysics, Multiscale, and Artificial Intelligence Insights

Advanced Materials, EarlyView.
Electrochemical CO2RR is a key technology for converting CO2 into chemicals, but there remains a gap between “laboratory science” and “engineering practice” in current research. This review establishes a multi‐scale research framework, encompassing atomic‐level characterization, microenvironment regulation, external field‐assisted optimization, and AI ...
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Large methane oxidation across an oxygen gradient in Baltic Sea deep waters

Limnology and Oceanography Letters
Robust estimations of methane (CH4) oxidation in marginal seas remain elusive, making CH4 budgets particularly uncertain. Here, we investigate the CH4 benthic source and bottom layer oxidation across the entire Baltic Sea using concentration and stable ...
Linnea Henriksson, Tristan McKenzie, Yvonne Y. Y. Yau, Henry L. S. Cheung, Claudia Majtényi‐Hill, Wilma Ljungberg, Aprajita S. Tomer, Stefano Bonaglia, Isaac R. Santos   +8 more
doaj   +1 more source

Seven Years’ Observation of Mid-Upper Tropospheric Methane from Atmospheric Infrared Sounder

Remote Sensing, 2010
The Atmospheric Infrared Sounder (AIRS) on EOS/Aqua platform provides a measurement of global methane (CH4) in the mid-upper troposphere since September, 2002.
Thomas S. Pagano, Xingpin Liu, Xiaozhen Xiong, Chris Barnet, Jennifer Wei, Eric Maddy   +5 more
doaj   +1 more source