Results 71 to 80 of about 10,667,646 (310)

An experimental study on the characteristics of ammonia/coal mild gasification-combustion and the Fuel-N transformation

open access: yesMeitan xuebao
Ammonia (NH3) is a carbon-free and hydrogen-rich fuel. NH3 co-firing in coal-fired boiler is an effective approach to reduce carbon emissions from the combustion source.
Baochong CUI   +5 more
doaj   +1 more source

Volatilização de N-NH3 na cultura de milho:: II. avaliação de fontes sólidas e fluidas em sistema de plantio direto e convencional [PDF]

open access: yesRevista Brasileira de Ciência do Solo, 1997
Foram desenvolvidos dois experimentos em campo, em sistema de plantio direto (SPD) sobre cobertura de aveia-preta, em latossolo vermelho-escuro, distrófico, argiloso, e em sistema de plantio convencional (SPC), após cultivo de soja, em latossolo vermelho-amarelo distrófico arenoso, no Centro de Pesquisa Novartis-Seeds e na Fazenda Stª.
Cabezas, W.A.R. Lara   +2 more
openaire   +4 more sources

Magnetic‐Field Control of Surface States in CoFe2O4 Thin Films for Nitrate Electroreduction to Ammonia

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐assisted CVD of heterometallic single‐source precursors modulates thin‐film surface electronic structure and interfacial charge transfer. Field‐grown (Cobalt ferrite‐1T)CF‐1T films exhibit stabilized electronic states, lower kinetic barriers, and markedly enhanced nitrate‐to‐ammonia electrocatalysis versus (Cobalt ferrite‐0T) CF‐0T ...
Touraj Karimpour   +11 more
wiley   +1 more source

Coal char affects soil pH to reduce ammonia volatilization from sandy loam soil

open access: yesAgrosystems, Geosciences & Environment, 2020
Ammonia (NH3) volatilization loss adversely affects N availability in soil‐plant systems, reduces crop yield, and negatively impacts environment. Char (coal combustion residue), which contains up to 293 g kg−1 total C by weight, has been shown to reduce ...
Dinesh Panday   +2 more
doaj   +1 more source

Advancing Tandem Organic Solar Cells With Ternary Acceptor Control for High‐Power Modules and Solar‐to‐Ammonia Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Tandem organic solar cells with optimized ternary acceptor engineering achieved a power conversion efficiency of 15.53% and enabled a high‐voltage mini‐module (Voc 6.11 V). Integration into a bias‐free PV‐EC system further demonstrated efficient solar‐to‐ammonia (STA) conversion (97% Faradaic Efficiency, 4± 2% STA efficiency), highlighting scalable ...
Seyeong Song   +11 more
wiley   +1 more source

Thermally Pre‐Formed Reconfigurable Resistive Random‐Access Memory Crossbar Arrays: A Dual‐Mode Platform for Robust Physically Unclonable Functions and In‐Memory Computing

open access: yesAdvanced Functional Materials, EarlyView.
A reconfigurable RRAM platform utilizing thermally pre‐formed filaments (TPFs) is developed to realize robust hardware security. By exploiting the thermodynamic stochasticity of TPFs, exceptionally reliable physically unclonable functions (PUFs) are achieved.
Seongbin Kwon   +4 more
wiley   +1 more source

Interlayer Expansion of Bulk MoS2 via Top‐Down Organic Pillaring Enables Tunable Li+ Intercalation and Controlled Solvent Co‐Intercalation

open access: yesAdvanced Functional Materials, EarlyView.
Top‐down organic pillaring expands the interlayer spacing of bulk‐sized MoS2 particles while preserving the bulk morphology. Operando X‐ray diffraction and electrochemical dilatometry show that MoS2‐bulk undergoes solvent co‐intercalation in diglyme electrolyte, causing large structural expansion, while pillared, expanded MoS2 suppresses solvent uptake
Jaehoon Choi   +8 more
wiley   +1 more source

Ammonia losses estimated by an open collector from urea applied to sugarcane straw

open access: yesRevista Brasileira de Ciência do Solo, 2012
The quantification of ammonia (NH3) losses from sugarcane straw fertilized with urea can be performed with collectors that recover the NH3 in acid-treated absorbers.
Eduardo Mariano   +5 more
doaj   +1 more source

Coupling Anodic Activity and Stability at Ni‐Based Non‐Oxide Catalysts via Coordinating Alcohol Oxidation and Oxygen Evolution

open access: yesAdvanced Functional Materials, EarlyView.
A cooperative and competitive interrelationship between alcohol oxidation (AOR) and water oxidation (OER) was observed on a typical anode catalyst of Ni2P. In situ Raman spectroscopy and electrochemical analyses revealed a specific complementary mechanism between them, in which OER and AOR critically contribute to the activity and stability of anodic ...
Yong Yan   +10 more
wiley   +1 more source

Plasma radicals as kinetics-controlling species during plasma-assisted catalytic NH3 formation: support from microkinetic modeling

open access: yes, 2023
About 1% of the world’s CO2 emissions are tied to the standard method to produce NH3 (i.e., Haber-Bosch process), hence there is a need to decarbonize the production this chemical.
Fnu, Gorky   +3 more
core   +1 more source

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