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Methane Bubbled Through Seawater Can be Converted to Methanol With High Efficiency.
Adv Sci (Weinh)
January 2025
Department of Chemistry, Stanford University, 380 Roth Way, Stanford, CA, 94305, USA.
Partial oxidation of methane (POM) is achieved by forming air-methane microbubbles in saltwater to which an alternating electric field is applied using a copper oxide foam electrode. The solubility of methane is increased by putting it in contact with water containing dissolved KCl or NaCl (3%). Being fully dispersed as microbubbles (20-40 µm in diameter), methane reacts more fully with hydroxyl radicals (OH·) at the gas-water interface.
View Article and Find Full Text PDFPutting piezoelectric sensors into Fano resonances.
Microsyst Nanoeng
December 2024
Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing, 210096, China.
Piezoelectric resonance sensors are essential to many diverse applications associated with chemical and biological sensing. In general, they rely on continuously detecting the resonant frequency shift of piezoelectric resonators due to analytes accreting on their surfaces in vacuum, gas or fluid. Resolving the small analyte changes requires the resonators with a high quality factor.
View Article and Find Full Text PDFHigh temperature pyrolysis of sewage sludge: Synergistic effects of co-pyrolysis with rice straw and composite plastics wastes.
Heliyon
November 2024
Synthetic Fuels and Chemicals Technology Center, Istanbul Technical University, 34469, Istanbul, Turkey.
The synergistic effect of co-pyrolysis for the mixtures of sewage sludge (SS), rice straw (RS) and composite plastic wastes (PE&PP) has been investigated with the aim of high gas yields and hydrogen generation. In this context, the applicability of high temperature pyrolysis technology was evaluated at both rotary type batch reactor and rotating screw type continuous reactor operating under the industrially relevant conditions. Gas yields have been improved at increasing the operating temperatures up to 850 °C.
View Article and Find Full Text PDFThe 2024 report of the Lancet Countdown on health and climate change: facing record-breaking threats from delayed action.
Lancet
November 2024
Institute for Global Health, University College London, London, UK.
Article Synopsis
- The world is nearing the critical threshold of 1.5°C warming, with 2023 recording an average temperature rise of 1.45°C since pre-industrial times, leading to severe climate-related impacts.
- The Countdown collaboration, formed to assess the health impacts of climate change post-Paris Agreement, involves over 300 experts analyzing data and trends annually.
- The 2024 report highlights troubling increases in climate-related health risks, such as a staggering 167% rise in heat-related deaths among seniors, indicating worsening conditions affecting wellbeing globally.
Analysis of volatile flavor compounds in Antarctic krill paste with different processing methods based on GC-IMS.
Food Sci Nutr
October 2024
College of Life Sciences, Key Laboratory of Biotechnology and Bioresources Utilization Dalian Minzu University, Ministry of Education Dalian Liaoning China.
Article Synopsis
- This study examines the preparation of shrimp paste using Antarctic krill and compares two cooking methods: stir-frying and steaming.
- It evaluates how different salt concentrations and processing techniques affect the flavor compounds in the shrimp paste.
- The analysis utilized an electronic nose and gas chromatography-ion mobility spectrometry, identifying 52 volatile flavor compounds, with a focus on their differences based on the cooking method used.
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