Article
Geosciences, Multidisciplinary
Youyou Cheng, Zhao Feng, Chunqiu Guo, Pengyu Chen, Chengqian Tan, Haidong Shi, Xiang Luo
Summary: This study provides a comprehensive analysis of the links between hydrogen sulfide (H2S) content and fluid components as well as petrophysical properties in carbonate gas reservoirs. The results show that H2S content is strongly correlated with fluid components and has a significant impact on porosity and permeability of the reservoir. The study also identifies sulfate thermochemical reduction (TSR) as the dominant contributor to high H2S content in carbonate reservoirs. Pore volume enlargement and the dissolution effect of acidic gases are found to be the main mechanisms for TSR to improve carbonate reservoir properties.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geochemistry & Geophysics
Kevin Meazell, Peter B. Flemings
Summary: This study uses 3D seismic data to track seafloor gas mounds and their leakage points in the Terrebonne Basin, Walker Ridge block 313 of the northern Gulf of Mexico. It predicts overpressure within sand bodies and explains the accumulation and release of free gas at the base of the hydrate stability zone. The study shows how the hydrate stability zone can impact fluid expulsion and be influenced by warm, rising, saline fluids sealed by hydrate.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Chemistry, Physical
Lingping Zeng, Mirhasan Hosseini, Alireza Keshavarz, Stefan Iglauer, Yunhu Lu, Quan Xie
Summary: Hydrogen is regarded as a promising renewable energy source to replace fossil fuels and achieve net-zero carbon emissions. Underground hydrogen storage is attracting more attention due to its potential for safe and economical large-scale hydrogen storage. This study used geochemical modeling to interpret the fluid-rock interactions and formation wettability in the H-2 -brine-calcite system. The results showed that temperature, salinity, and organic acid concentration have significant effects on the wettability of hydrogen, providing insights for assessing hydrogen wettability during underground hydrogen storage.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Environmental Sciences
Yu -Xi Feng, Cheng-Zhi Li, Peng Tian, Xiao-Zhang Yu
Summary: Thiocyanate is a common pollutant that negatively affects plant growth and crop yields. Rice plants can uptake and assimilate exogenous thiocyanate, producing hydrogen sulfide as a byproduct. Hydrogen sulfide has dual regulatory effects on rice plants. By clarifying the fate of hydrogen sulfide derived from assimilation of thiocyanate, we can better understand its physiological functions in rice plants.
Article
Multidisciplinary Sciences
Yumi Abiko, Yusuke Katayama, Wenyang Zhao, Sawako Horai, Kenji Sakurai, Yoshito Kumagai
Summary: Our study revealed the transformation of MeHg to (MeHg)2S in the gut and its subsequent fate, leading to the production of volatile DMeHg in the body.
SCIENTIFIC REPORTS
(2021)
Review
Engineering, Biomedical
Fan Rong, Tengjiao Wang, Qian Zhou, Haowei Peng, Jingtian Yang, Quli Fan, Peng Li
Summary: This review focuses on the design, preparation, and therapeutic applications of intelligent polymeric H2S delivery systems in cardiovascular therapy, inflammatory therapy, tissue regenerative therapy, cancer therapy and bacteria-associated therapy. Precise H2S therapies, especially imaging-guided H2S theranostics, are highlighted.
BIOACTIVE MATERIALS
(2023)
Article
Chemistry, Analytical
Zhen Jiang, Jinbo Zhao, Xingyu Yao, Jiurong Liu, Fenglong Wang, Lili Wu, Haixiang Song, Zhou Wang, Zhihui Zeng
Summary: In this paper, Ni0.9Zn0.1O/ZnO composite fibers were prepared using a combined approach of electrospinning and hydrothermal method for enhanced H2S gas sensing performance. The nanosheets structure of the composite fibers, as well as the proper energy band structure alignment between Ni0.9Zn0.1O and ZnO, have improved its gas sensing performance.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Nanoscience & Nanotechnology
Tingting Chen, Jianhai Sun, Ning Xue, Wen Wang, Zongchang Luo, Qinqin Liang, Tianye Zhou, Hao Quan, Haoyuan Cai, Kangsong Tang, Kaisheng Jiang
Summary: Cu-doped SnO2/rGO nanocomposites prepared by a solvothermal method show promising potential as H2S sensors due to their excellent selectivity, linear working range, response time, and detection ability at low concentrations. The superior sensing properties are attributed to catalytic sensitization by the Cu dopant and a synergistic effect of the Cu-SnO2 and rGO.
MICROSYSTEMS & NANOENGINEERING
(2023)
Article
Environmental Sciences
Emily Tran, Mavrik Zavrin, Annie B. Kersting, Ofra Klein-BenDavid, Nadya Teutsch, Noam Weisbrod
Summary: This study investigated the influence of montmorillonite colloids on the mobility of Pu-238, U-233, and Cs-137 through a chalk fracture. The results showed that uranium sorbed sparingly to chalk, while cesium sorbed strongly to both the montmorillonite colloids and chalk, resulting in low Cs-137 breakthrough. The experiments revealed differences in Pu(IV) and Pu(V) transport behavior, highlighting the importance of understanding redox-sensitive radionuclide migration.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Energy & Fuels
Mahdi Kanaani, Behnam Sedaee, Mojtaba Asadian-Pakfar
Summary: Hydrogen storage in underground structures is a vital way to maintain the balance between energy production and consumption, with the potential to convert excess electrical energy into chemical energy for temporary storage. The study found that using methane as cushion gas could achieve a maximum hydrogen recovery rate of 89.7%, while absence of cushion gas led to a higher hydrogen loss.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Multidisciplinary Sciences
Christopher H. Switzer, Shingo Kasamatsu, Hideshi Ihara, Philip Eaton
Summary: Hydrogen sulfide (H2S) is both an antioxidant and cytotoxic by inhibiting mitochondrial respiration. It is detoxified inside mitochondria through slow enzymatic reactions, but alternative detoxification mechanisms are predicted to exist. Superoxide dismutase [Cu-Zn] (SOD1) is shown to efficiently oxidize H2S, limiting its cytotoxicity. SOD1 can convert H2S to sulfate under limited sulfide conditions, but can catalyze the formation of per- and polysulfides when sulfide is in excess, leading to cellular thiol oxidation.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Physical
Merve Ozturk, Adnan Midilli, Ibrahim Dincer
Summary: This study proposes a novel system for utilizing hydrogen sulfide and natural gas resources in the Black Sea for transitioning to a hydrogen economy, with offshore wind and offshore photovoltaic power plants providing electricity for an electrolyzer. The system blends hydrogen with natural gas for industrial and residential applications, resulting in increased combustion efficiencies and reduced carbon dioxide emissions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Chemical
Ali Hayek, Yasser A. Shalabi, Abdulkarim Alsamah
Summary: This paper discusses the trade-off relationship between permeability and selectivity of polymeric membranes prepared from glassy polymers, as well as the evaluation methods and standards for the performance in pure-gas and mixed-gas separations. New upper bounds for CO2/CH4, H2S/CH4, and combined acid gas sour mixed-gas separations based on experimental data are proposed for potential future industrial applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Tajammul Husain, Mohammad Suhel, Sheo Mohan Prasad, Vijay Pratap Singh
Summary: Research has shown that both ethylene and hydrogen sulfide have the potential to alleviate the toxicity of hexavalent chromium in crop plants, with endogenous H2S playing a crucial role in the ET-mediated mitigation of Cr(VI) stress.
ENVIRONMENTAL POLLUTION
(2021)
Article
Geosciences, Multidisciplinary
Mahdi Amirsardari, Najeh Alali, Khalil Afsari
Summary: This study investigates the behavior of aquifers in low-dip reservoirs from two perspectives, identifying the outer corner water encroachment (OCWE) phenomenon and showing that commonly available analytical and numerical models cannot accurately predict water movement profiles and influx volumes in LDEWD aquifers. Simulation results suggest that OCWE movement from the outer corner of the reservoir is a major contributor to water encroachment and production in heterogeneous carbonate reservoirs.
NATURAL RESOURCES RESEARCH
(2021)