Results 61 to 70 of about 24,264 (212)

Dual‐Function Electrocatalysis: Simultaneous Wastewater Remediation and Hydrogen Evolution—A Comprehensive Review

Carbon Energy, EarlyView.
Replacing the oxygen evolution reaction with the electro‐oxidation of pollutants and waste streams offers an energy‐efficient route for simultaneous hydrogen production and pollutant remediation. This review summarizes the reaction mechanisms, catalyst design principles, and emerging paired‐electrolysis strategies that govern activity, selectivity ...
Safa Al‐Yahyaey, Rashid Al‐Hajri, Ala'a H. Al‐Muhtaseb, Hussein A. Younus, Mohammed Al‐Abri   +4 more
wiley   +1 more source

Respiration and growth of Paracoccus denitrificans R-1 with nitrous oxide as an electron acceptor

Microbiology Spectrum
In the nitrogen biogeochemical cycle, the reduction of nitrous oxide (N2O) to N2 by N2O reductase, which is encoded by nosZ gene, is the only biological pathway for N2O consumption.
Jiaxian Zhou, Wenfang Deng, Jiapeng Wu, Hua Xiang, Xiaomei Shen, Jih-Gaw Lin, Yiguo Hong   +6 more
doaj   +1 more source

Nitrous oxide content and fluxes in Setúbal Bay, Portugal, during upwelling events

Ciencias Marinas, 2011
To evaluate the influence of upwelling events on nitrous oxide (N2O) levels and sea-air exchange in Setúbal Bay (SW Portugal), measurements of dissolved N2O were carried out from the surface down to 200 m depth in May 2006 and May 2007.
C Gonçalves, MJ Brogueira, MF Camões
doaj   +1 more source

Selective Non‐Catalytic Reduction of NOx in the Exhaust Gas of Small Wood Gasification Boilers

Chemie Ingenieur Technik, EarlyView.
Kinetic studies of the SNCR reaction were conducted to investigate NOx reduction in the exhaust gas of small‐scale wood gasification boilers. Both the experimental results and the derived global kinetic model indicate that SNCR can achieve a significant reduction in NOx emissions under typical operating conditions. ABSTRACT The gas‐phase reaction of NO
Alexander Groß, Sven Kureti
wiley   +1 more source

Unprecedented N2O production by nitrate-ammonifying Geobacteraceae with distinctive N2O isotopocule signatures

mBio
Dissimilatory nitrate reduction to ammonium (DNRA), driven by nitrate-ammonifying bacteria, is an increasingly appreciated nitrogen-cycling pathway in terrestrial ecosystems.
Zhenxing Xu, Shohei Hattori, Yoko Masuda, Sakae Toyoda, Keisuke Koba, Pei Yu, Naohiro Yoshida, Zong-Jun Du, Keishi Senoo   +8 more
doaj   +1 more source

Development and Validation of a Multipurpose Setup for Synthesis Gas Chemistry

Chemie Ingenieur Technik, EarlyView.
Validation of a flexible multipurpose setup for synthesis gas reactions under industrially relevant conditions equipped with precise control of temperature, pressure, and gas composition, and multiple online detection methods (IR, GC, QMS, and RAMAN), demonstrated by successful operation of NH3 decomposition, MeOH synthesis, and NH3 synthesis ...
Jan Folke, Simon Ristig, Oscar Gómez‐Cápiro, Daniel Laudenschleger, Holger Ruland   +4 more
wiley   +1 more source

(Hoch‐)Spannende Experimente zur Plasmachemie

CHEMKON, EarlyView.
In den im Artikel vorgestellten Experimenten wird die Chemie atmosphärischer Luft‐Plasmen mithilfe eines kostengünstigen Tesla‐Transformators untersucht und anhand schulgeeigneter Modelle veranschaulicht. Im Mittelpunkt stehen Experimente zur Oberflächenmodifikation, Plasma‐Reinigung sowie zum Nachweis ausgewählter reaktiver Sauerstoff‐ und ...
Christoph Weidmann, Lena Bohnert, Thomas Waitz   +2 more
wiley   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

CO₂ and N₂O Emissions From Vehicles in Seoul Megacity, South Korea: Insights From Mixing Ratio and Stable Isotope Ratios. [PDF]

Rapid Commun Mass Spectrom
ABSTRACT Rationale Vehicular traffic is a major source of anthropogenic greenhouse gases in megacities; however, real‐world constraints on vehicle‐derived N2O emissions and their isotopic characteristics remain limited. Methods Air samples were collected from three tunnels and urban background sites (a university campus and mountain) in Seoul, South ...
Kim J, Ahn J, Ghosh S, Toyoda S, Morimoto S, Choi H, Jung J, Lee H.   +7 more
europepmc   +2 more sources

Design of a Novel CeW/Fe‐TiO2 Catalyst With High Oxygen Vacancy for Enhancing the Reactivity and SO2 Resistance in Low‐Temperature NH3‐SCR Reaction

EcoEnergy, EarlyView.
Fe3+ was introduced into the TiO2 lattice using the hydrothermal method, and low‐valent cations replaced part of Ti4+ to generate oxygen vacancies within the Fe‐Ov‐Ti unit, resulting in CeW/Fe‐TiO2 catalysts with oxygen‐deficient structures. Compared with CeW/TiO2 catalyst, the increase in oxygen vacancy content significantly improved the catalytic ...
Yuhang Wang, Xiaosheng Huang, Guodong Zhang, Haitao Zhang, Yongjie Xi, Zhicheng Tang   +5 more
wiley   +1 more source