Abstract. The North Sea is Europe's key oil and gas (O&G) basin with the output currently meeting 3 %–4 % of global supply. Despite this, there are few observational constraints on nature atmospheric emissions from this region, most information derived bottom-up inventory estimates. This study reports airborne measurements volatile organic compounds (VOCs) emitted O&G-producing ...

Gas detection based on photoacoustic spectroscopy (PAS) has attracted extensive attention due to its high sensitivity and large range of linearity. Herein, achieve the simultaneous light carbon gases (CH4, C2H4, C2H6), a gas system was constructed using single mid-infrared tunable diode laser (central wavelength 3345 nm) source differential Helmholtz resonance (DHRS). The parameters (driving cu...

To clarify the implication of alkane carbon and hydrogen isotopes for genesis accumulation over-mature shale gas, we carried out a comparative study on Longmaxi gases from eight blocks in Upper Yangtze area. The results show that δ 13 C CH4 , C2H6 C3H8 gas are all positively correlated with Ro. According to distribution model thermal maturity, lies reversal stage. Shale is mixture kerogen crack...

A binary component catalyst consists of single atoms (SAs– Pt and Au) anchored on self-doped TiO2 nanotubes (TNTs), was developed for photocatalytic CO2 reduction. The defects introduced TNTs substrate stabilized with atomic Au via strong metal support interactions (MSI), due to which, the covalent facilitated an effective transfer photo-generated electrons from defective sites SAs, in turn enh...

Perovskites such as SrTiO3 are interesting for photocatalytic applications due to their structure-related and electronic properties. These properties influenced by the presence of SrCO3 which is often formed simultaneously during hydrothermal synthesis SrTiO3. In this study, SrTiO3-SrCO3 composites with different contents (5–24 wt%) were synthesized. Their morphological, structural, optical inv...

In this study, two shale samples with different maturities, from Geniai, Lithuania (Ro = 0.7%), and Wenjiaba, China 2.7%), were selected for open-system pyrolysis experiments at 400 °C 500 °C, respectively. The generation of isotopic gases the shales maturities was investigated, effects pyrite catalysis on carbon compositions also studied. It found that CO2, CH4 their main gaseous products both...

High-performance tracking trace amounts of NO2 with gas sensors could be helpful in protecting human health since high levels may increase the risk developing acute exacerbation chronic obstructive pulmonary disease. Among various sensors, Graphene-based have attracted broad attention due to their sensitivity, particularly addition noble metals (e.g., Ag). Nevertheless, internal mechanism impro...