Results 91 to 100 of about 50,853 (257)

Advanced Current Collector Design for High Energy Density Anode‐Free Sodium‐Ion Batteries

Electron, EarlyView.
The electrochemical performance of AFSIBs depends heavily on the current collector. This review highlights key advances in current collector design for AFSIBs, focusing on surface modification and structural engineering to enhance sodium affinity, ion transport, and interfacial stability. Future research directions are outlined to guide the development
Zhenzhu Wang, Jia Song, Xiaofeng Li, ChaoZhong Liu, Meijuan Liu, Lizhi Li, Xiaoyu Xu, Yumei Wang, Jiangfeng Ni, Bo Song   +9 more
wiley   +1 more source

Research on the Effect of Carbon Defects on the Hydrophilicity of Coal Pyrite Surface from the Insight of Quantum Chemistry

Molecules, 2019
To investigate the effect of carbon defects on the hydrophilicity of the whole surface of the coal pyrite, the adsorption of the single H2O molecule at different sites of the coal pyrite surface was studied with the DFT calculation.
Peng Xi, Ruixin Ma, Wenli Liu
doaj   +1 more source

Evaluation of Present Tectonic Stress Field and Permeability of Coalbed Methane Reservoirs by Inversion of Logging Data From Longtan Formation, Dahebian Block

Energy Science &Engineering, EarlyView.
ABSTRACT The permeability of coal reservoirs is predominantly controlled by the present tectonic stress field. This study systematically integrates macro‐ and micro‐scale analytical methods to investigate the controlling mechanisms of tectonic stress on pore‐fracture characteristics and permeability in the Longtan Formation coal reservoirs.
Guoqing He, Zhonghu Wu, Wenjibin Sun, Xianchao Yang, Jintao Zhou, Jun Yu, Baofeng Lan   +6 more
wiley   +1 more source

GOLDEN PYRITES FROM THE IBERIAN PYRITE BELT [PDF]

Goldschmidt2021 abstracts, 2021
G. R. Almodóvar, Sáez Ramos Reinaldo, José María González-Jiménez, Joaquín A. Proenza, Juan Manuel Pons, Rubén Piña, Lola Yesares Ortiz   +6 more
openaire   +1 more source

Pyrite Morphology as an Indicator of Paleoredox Conditions and Shale Gas Content of the Longmaxi and Wufeng Shales in the Middle Yangtze Area, South China

Minerals, 2019
Pyrite is the most common authigenic mineral preserved in many ancient sedimentary rocks. Pyrite also widely exists in the Longmaxi and Wufeng marine shales in the middle Yangtze area in South China.
Ziyi Liu, Dongxia Chen, Jinchuan Zhang, Xiuxiang Lü, Ziyi Wang, Wenhao Liao, Xuebin Shi, J. Tang, Guangjie Xie   +8 more
semanticscholar   +1 more source

Multiscale NMR Characterization in Shale: From Relaxation Mechanisms to Porous Media Research Frontiers

Energy Science &Engineering, EarlyView.
ABSTRACT Nuclear magnetic resonance (NMR), as an advanced non‐destructive and rapid measurement technology, has shown unique advantages in the evaluation of unconventional shale reservoirs. This paper systematically introduces the fundamental principles of NMR spectroscopy and relaxation theory in porous media and comprehensively analyzes the ...
Long Zhou, Guangzhi Liao, Ruiqi Fan, Rui Mao, Xueli Hou, Nan Li, Zhilong He, Yushu Zhang, Lizhi Xiao   +8 more
wiley   +1 more source

Re–Os isotope geochronology of the Shangbao pyrite–flourite deposit in southeastern Hunan, South China: Evidence for multiple mineralization events and the role of crust–mantle interaction in polymetallic deposits

Solid Earth Sciences, 2017
In South China, both crustal reworking and crust–mantle interaction were important geological processes during the Paleozoic and Mesozoic eras. However, the relationships between these two processes and metal mineralization are still unknown.
Cheng-Cheng Huang, Hai-Feng Guo, Jie Li, Qiang Wang, Chunfu Zhang, Derek Wyman, Gong-Jian Tang   +6 more
doaj   +1 more source

Abiotic syntheses of pyrite: clues to assess the biogenicity of pyrite spherules [PDF]

Geochemical Perspectives Letters
Life proliferates almost everywhere on Earth but determining whether or not hyperthermophile microorganisms have colonised a given hydrothermal environment, such as black smoker chimneys, remains challenging. Some mineral phases like pyrite spherules have been proposed to possibly serve as biosignatures.
Truong, C., Bernard, S., Gorlas, A., Guyot, F.   +3 more
openaire   +2 more sources

Origins of the Pangkaimen Au Deposit in the Northern Great Xing'an Range, China: Evidence From Geochronological, Geochemical, Fluid Inclusion, and H–O–S–Pb Isotope Data

Geological Journal, EarlyView.
The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu, Hongpeng Chen, Chenglu Li, Ye Wang, Tiesheng Li, Rigen Wu, Zengtao Li, Zhichao Song, Xiannan Zhu   +8 more
wiley   +1 more source

Flotation Behavior of Complex Sulfide Ores in the Presence of Biodegradable Polymeric Depressants

International Journal of Polymer Science, 2017
In this study, chitosan polymer was tested as a potential selective green depressant of pyrite in the bulk flotation of galena (PbS) and chalcopyrite (CuFeS2) from sphalerite (ZnS) and pyrite (FeS2) using sodium isopropyl xanthate as a collector and 4 ...
Muhammad Badar Hayat, Lana Alagha, Syed Mohammad Sannan   +2 more
doaj   +1 more source