Themed collection SDG13: Climate Action- chemistry of greenhouse gases, 2022

24 items
Critical Review

Secondary organic aerosol formation from monocyclic aromatic hydrocarbons: insights from laboratory studies

This review summarizes in detail the current knowledge in the chemical compositions, formation mechanisms, and physicochemical properties of secondary organic aerosols formed from monocyclic aromatic hydrocarbons.

Graphical abstract: Secondary organic aerosol formation from monocyclic aromatic hydrocarbons: insights from laboratory studies
From the themed collection: Atmospheric chemistry
Open Access Critical Review

Particulate nitrate photolysis in the atmosphere

Particulate nitrate photolysis can lead to the formation of secondary inorganic and organic aerosols that affect climate, air quality, and human health.

Graphical abstract: Particulate nitrate photolysis in the atmosphere
Critical Review

Boosting CO2 electroreduction towards C2+ products via CO* intermediate manipulation on copper-based catalysts

An overview of the strategies for boosting C2+ selectivity by manipulating CO*(CO).

Graphical abstract: Boosting CO2 electroreduction towards C2+ products via CO* intermediate manipulation on copper-based catalysts
Critical Review

Geochemical controls on CO2 interactions with deep subsurface shales: implications for geologic carbon sequestration

CO2 sequestration in shales is controlled by the intrinsic properties of shale and external factors shown in grey and green boxes, respectively. The adsorption capacity (orange box) is influenced by both intrinsic properties and external factors.

Graphical abstract: Geochemical controls on CO2 interactions with deep subsurface shales: implications for geologic carbon sequestration
Open Access Critical Review

Aging of atmospheric aerosols and the role of iron in catalyzing brown carbon formation

Iron in mineral dust can catalyze reactions with atmospheric organics that lead to the formation of brown carbon (BrC) that impact the climate in a number of ways.

Graphical abstract: Aging of atmospheric aerosols and the role of iron in catalyzing brown carbon formation
Critical Review

The progress of nanomaterials for carbon dioxide capture via the adsorption process

This review article describes the main technologies for CO2 capture, highlights the latest research status of nanomaterials for CO2 capture, and investigates the influence of surface microstructure and modification of materials on CO2 capture.

Graphical abstract: The progress of nanomaterials for carbon dioxide capture via the adsorption process
Paper

Formation pathways of aldehydes from heated cooking oils

We studied the mechanisms of cooking oil decomposition that lead to emission of aldehydes, an important group of air pollutants, from food cooking.

Graphical abstract: Formation pathways of aldehydes from heated cooking oils
Paper

Identification of the active site during CF4 hydrolytic decomposition over γ-Al2O3

CF4 hydrolytic decomposition was studied at three-coordinated Al sites on the γ-Al2O3 (110) surface.

Graphical abstract: Identification of the active site during CF4 hydrolytic decomposition over γ-Al2O3
From the themed collection: Environmental Remediation
Open Access Paper

Decomposition mechanism of α-alkoxyalkyl-hydroperoxides in the liquid phase: temperature dependent kinetics and theoretical calculations

The decomposition rates of organic hydroperoxides derived from ozonolysis of terpene-alcohol in the presence of short-chain alcohols in aqueous organic media is markedly increased as the temperature is increased.

Graphical abstract: Decomposition mechanism of α-alkoxyalkyl-hydroperoxides in the liquid phase: temperature dependent kinetics and theoretical calculations
From the themed collection: ES: Atmospheres Hot Papers
Paper

Towards a broad-operation window for stable CO2 electroreduction to HCOOH by a design involving upcycling electroplating sludge-derived Sn@N/P-doped carbon

Sn@NPC composite is synthesized by a design involving the upcycling of Sn electroplating sludge, and exhibits high selectivity and stability for CO2RR to HCOOH.

Graphical abstract: Towards a broad-operation window for stable CO2 electroreduction to HCOOH by a design involving upcycling electroplating sludge-derived Sn@N/P-doped carbon
Open Access Paper

Hygroscopicity of polycatechol and polyguaiacol secondary organic aerosol in sub- and supersaturated water vapor environments

Polycatechol and polyguaiacol are light-absorbing and water-insoluble compounds that are produced from biomass burning emissions. The aerosol can act as seeds for cloud droplet formation.

Graphical abstract: Hygroscopicity of polycatechol and polyguaiacol secondary organic aerosol in sub- and supersaturated water vapor environments
From the themed collection: ES: Atmospheres Hot Papers
Paper

Abiotic reduction of nitrite by Fe(II): a comparison of rates and N2O production

Nitrite reduction by Fe(II) in an agricultural sediment and complete conversion to N2O suggests chemodenitrification is important to N2O emissions.

Graphical abstract: Abiotic reduction of nitrite by Fe(ii): a comparison of rates and N2O production
Open Access Paper

A modelling study of OH, NO3 and H2SO4 in 2007–2018 at SMEAR II, Finland: analysis of long-term trends

We applied the 1D model SOSAA to simulate the atmospheric concentrations of OH, NO3, and H2SO4 from 2007 to 2018 at SMEAR II. The results showed that daily OH increased by 2.39% per year and NO3 and H2SO4 decreased by 3.41% per year and 2.78% per year, respectively.

Graphical abstract: A modelling study of OH, NO3 and H2SO4 in 2007–2018 at SMEAR II, Finland: analysis of long-term trends
Open Access Paper

Natural greenhouse gas and ozone-depleting substance sources and sinks from the peat bogs of Connemara, Ireland from 1994–2020

New emissions of methane and chloroform, with concurrent depositions of ozone and hydrogen were determined from the peat bogs of Ireland.

Graphical abstract: Natural greenhouse gas and ozone-depleting substance sources and sinks from the peat bogs of Connemara, Ireland from 1994–2020
Paper

Unraveling high-pressure gas storage mechanisms in shale nanopores through SANS

Three essential factors, including the final injection pressure, total organic carbon (TOC), and porosity of open pores, could determine methane storage and long-term CO2 sequestration potentials in depleted shale reservoirs.

Graphical abstract: Unraveling high-pressure gas storage mechanisms in shale nanopores through SANS
Paper

Plasma-induced construction of defect-enriched perovskite oxides for catalytic methane combustion

An innovative plasma-induced strategy was employed to one-step prepare defect-enriched porous LaMnO3 and cerium-substituted LaMnO3 perovskite oxides with excellent performance in methane combustion.

Graphical abstract: Plasma-induced construction of defect-enriched perovskite oxides for catalytic methane combustion
Paper

Resolving the organization of CO2 molecules confined in silica nanopores using in situ small-angle neutron scattering and molecular dynamics simulations

This work quantifies the core–shell structure of nano-confined CO2 molecules under pressure in silica pores using in operando small-angle neutron scattering (SANS) measurements and molecular dynamics simulations.

Graphical abstract: Resolving the organization of CO2 molecules confined in silica nanopores using in situ small-angle neutron scattering and molecular dynamics simulations
From the themed collection: Nanocircular Economy Papers 2014-2022
Paper

Activation and adsorption performance of sewage sludge carbon for CO2: unusual enhancement effect of HF treatment

The unusual enhancement effect of HF-treated sludge carbon for CO2 adsorption was found, which contributed to the HF activation role, resulting in the formation of abundant CO2-philic ultra-micropores and C–F functional groups.

Graphical abstract: Activation and adsorption performance of sewage sludge carbon for CO2: unusual enhancement effect of HF treatment
Paper

Degradation mechanisms of simple aliphatic amines under ozonation: a DFT study

Degradation mechanisms of simple aliphatic amines during ozonation have been investigated by using the DFT method.

Graphical abstract: Degradation mechanisms of simple aliphatic amines under ozonation: a DFT study
Open Access Paper

Peroxy radical kinetics and new particle formation

Chamber experiments may over emphasize peroxy radical cross reactions due to lower concentrations of reactants that directly convert OH into HO2.

Graphical abstract: Peroxy radical kinetics and new particle formation
Paper

Anaerobic respiration pathways and response to increased substrate availability of Arctic wetland soils

Divergent soil biogeochemical conditions will determine the fate and pathways of labile carbon released during permafrost thaw, thereby influencing the production of greenhouse gas mixtures and radiative forcing of tundra soils.

Graphical abstract: Anaerobic respiration pathways and response to increased substrate availability of Arctic wetland soils
Paper

Influence of dissolved organic matter on carbonyl sulfide and carbon disulfide formation from cysteine during sunlight photolysis

Sunlight photolysis of cysteine and dissolved organic matter (DOM) from freshwater to open ocean water sources generates carbonyl sulfide (COS) but not carbon disulfide (CS2).

Graphical abstract: Influence of dissolved organic matter on carbonyl sulfide and carbon disulfide formation from cysteine during sunlight photolysis
Open Access Paper

Secondary organic aerosol formation from evaporated biofuels: comparison to gasoline and correction for vapor wall losses

With an ongoing interest in displacing petroleum-based sources of energy with biofuels, we measure and model the formation and composition of secondary organic aerosol (SOA) from organic compounds present in biofuels.

Graphical abstract: Secondary organic aerosol formation from evaporated biofuels: comparison to gasoline and correction for vapor wall losses
Open Access Paper

Assessing the prevalence, products, and pathways of dissolved organic matter partial photo-oxidation in arctic surface waters

Isotope tracer experiments reveal that rates of dissolved organic matter partial photochemical oxidation are considerably underestimated in arctic surface waters.

Graphical abstract: Assessing the prevalence, products, and pathways of dissolved organic matter partial photo-oxidation in arctic surface waters
From the themed collection: Geochemistry
24 items

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