Results 171 to 180 of about 195,466 (308)

Alloying Cu, Fe, and Co in Ni/YSZ Electrodes for High‐Temperature CO2 Electrolysis: Impact on TPB Density, Activity, and Carbon Deposition Resistance

open access: yesCarbon Energy, EarlyView.
Systematic alloying of Ni with Cu, Fe, and Co in Ni/YSZ electrodes modifies active site density up to 43%, decreases activation energies by up to 44%, and reduces carbon deposition fourfold. Cu–Ni alloy is among the most promising alloy catalysts for electrochemical CO2 reduction in SOECs.
Min Jun Oh   +9 more
wiley   +1 more source

Synergistic CO2‐Philic/H2O‐Phobic Interface Engineering in PEDOT/NHCS/Au Composite for High‐Efficiency CO2 Electroreduction With Suppressed Hydrogen Evolution Reaction

open access: yesCarbon Energy, EarlyView.
The mechanism of CO2RR on NHCS/Au and PEDOT/NHCS/Au. ABSTRACT The electrocatalytic CO2 reduction reaction (CO2RR) offers a viable solution for the conversion and storage of renewable energy. Utilizing electronic metal‐support interactions (EMSI) to adjust the electronic properties of metal catalysts has demonstrated effectiveness in enabling highly ...
Nuramina Abdukirim   +7 more
wiley   +1 more source

Multiple Active Sites Engineering in Cu/γ‐Al2O3 Catalyst Enables Selective Electrocatalytic CO2 Reduction to Methane at High Rates

open access: yesCarbon Energy, EarlyView.
A multi‐site heterogeneous electrocatalyst is designed, composed of Cu nanoclusters supported on γ‐Al2O3. Within this system, CO2 activation, H2O dissociation, and *CO protonation are respectively governed by the Cu sites, γ‐Al2O3 sites, and the Cu/γ‐Al2O3 interface sites.
Xiangke Zeng   +10 more
wiley   +1 more source

Worldwide inference of national methane emissions by inversion of satellite observations with UNFCCC prior estimates. [PDF]

open access: yesNat Commun
East JD   +11 more
europepmc   +1 more source

Methane emissions from grasslands

open access: yes
IntroductionMethane (CH 4 ) is an important greenhouse gas. The concentration of greenhouse gases in the atmosphere has been increasing since pre-industrial times, mainly due to human activities. This increase gives concern, because it may cause global warming due to an enhanced greenhouse effect.In the soil, CH 4 may be produced under anaerobic ...
openaire   +2 more sources

Functionalizing Conductive Diamond: Recent Advance in Fabrication, Modifications, and Applications

open access: yesCarbon Energy, EarlyView.
This review highlights recent advancements in the synthesis, modification, and electrochemical applications of conductive diamond, particularly boron‐doped diamond (BDD). It emphasizes progress in fabrication methods, including CVD and HPHT, and explores modifications such as doping, surface terminations, and composite design, enabling significant ...
Ning Linghu, Xin Jiang, Jing Xu
wiley   +1 more source

Ultra‐High‐Efficiency On‐Chip CO2 Conversion by Nanosecond Self‐Pulsing Micro‐Plasma Devices

open access: yesCarbon Energy, EarlyView.
A micro‐plasma chip with sub‐10‐μm electrode gaps is introduced for efficient CO2‐to‐CO conversion. The device self‐converts a DC power supply into nanosecond pulses, producing field‐emission electrons that vibrationally excite CO2, driving dissociation via the ladder‐climbing mechanism. A scaled‐up chip array achieves 30% single‐pass conversion and 50%
Guangyu Sun   +5 more
wiley   +1 more source

Seasonality and Declining Intensity of Methane Emissions from the Permian and Nearby US Oil and Gas Basins. [PDF]

open access: yesEnviron Sci Technol
Varon DJ   +21 more
europepmc   +1 more source

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