Results 91 to 100 of about 10,780 (258)

A Comparative Study on Acoustic Characteristics of Methane and Tetrahydrofuran Hydrate-Bearing Sediments

Journal of Marine Science and Engineering
Laboratory acoustic measurements of hydrate-bearing sediments serve as an important reference for the geological interpretation of seismic exploration data.
Wengao Zhao, Qingtao Bu, Zihao Wang, Tong Liu, Qingguo Meng, Yapeng Zhao, Gaowei Hu   +6 more
doaj   +1 more source

Rapid Joule‐Heating‐Induced Non‐Equilibrium Exsolution in Perovskite Oxides for Enhanced Photothermal CO2 Methanation

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Rapid Joule heating induces Ni—Fe exsolution from perovskite oxides, forming Ni–Fe/oxide heterointerfaces that enhance photothermal CO2 methanation activity and selectivity. Achieving selective CO2 methanation under photothermal conditions requires catalysts capable of maintaining non‐equilibrium interfacial states that balance reduction and oxidation ...
Qiankai Zhang, Qinghao Li, Kaiyue Xing, Gan Jin, Lei Fu, Le Shi, Yang Wang, Junbo Wang, Kai Wu, Jun Zhou   +9 more
wiley   +1 more source

Biotechnological aspects of sulfate reduction with methane as electron donor

, 2010
Biological sulfate reduction can be used for the removal and recovery of oxidized sulfur compounds and metals from waste streams. However, the costs of conventional electron donors, like hydrogen and ethanol, limit the application possibilities.
Meulepas, Roel J.W., Piet N. L. Lens, Alfons J. M. Stams, Stams, Alfons J.M., Roel J. W. Meulepas, Stams, A.J.M., Meulepas, R.J.W., Lens, P.N.L., Lens, Piet N.L.   +8 more
core   +1 more source

Methane hydrate stability in seawater

Geophysical Research Letters, 1994
Experimental data are presented for methane hydrate stability conditions in seawater (S ≈ 33.5‰). For the pressure range of 2.75–10.0 MPa, at any given pressure, the dissociation temperature of mcthane hydrate is depressed by approximately −1.1°C relative to the pure methane‐pure water system.
Gerald R. Dickens, Mary S. Quinby‐Hunt
openaire   +1 more source

Research progress on flexible MXene‐based materials in advanced energy storage devices: From preparation strategies to device applications

FlexMat, EarlyView.
This review summarizes MXene synthesis and flexible electrode fabrication for FESDs, highlighting their potential owing to high conductivity and flexibility, and outlines future research directions. Abstract The rapid development of wearable and portable electronics has created demand for flexible energy storage systems (FESDs) that not only exhibit ...
Nanxi Miao, Ying Lu, Xing Gao, Lingzi Pan, Meng Gao, Chenxi Zhang, Ming Liu, Shizhong Wang, Zhongyu Weng, Huan Pang, Huijie Zhou   +10 more
wiley   +1 more source

The Concentration Changes of Major Ions in Seawater During the Methane Hydrate Formation Process

Yankuang ceshi, 2013
A description of the synthetic experiment of methane hydrate is given in this paper, along with a preliminary study of ion concentration changes during the process, whilst providing important technical support for the gas hydrate geochemical exploration.
REN Hong-bo, LIU Chang-ling, CHEN Min, LIN Xue-hui, ZHANG Yuan-yuan, DENG Xing-bo   +5 more
doaj  

Experimental Study of Methane Hydrates in Coal

E3S Web of Conferences, 2017
The possibility of gas hydrate formation in porous space of coal has been studied. The experiments conducted have proven the possibility of methane gas hydrate formation in moist coal. It has been demonstrated that the decomposition points of methane gas
Smirnov Vyacheslav, Dyrdin Valery, Kim Tatyana, Manakov Andrey, Khoreshok Aleksey   +4 more
doaj   +1 more source

Dry Reforming of Biogas Over Li–Ni–Al Catalysts: Influence of Li Incorporation Method

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Hydrogen is a promising source of energy, given the current context of depletion of fossil fuels and increased emissions of greenhouse gases. The technological route for obtaining this fuel from the dry reforming of biogas has received considerable attention from researchers, as it converts the polluting gases CH4 and CO2 into synthesis gas ...
Cristine Munari Steffens, Oscar W. Perez‐Lopez   +1 more
wiley   +1 more source

The methane hydrate formation and the resource estimate resulting from free gas migration in seeping seafloor hydrate stability zone

, 2009
It is a typical multiphase flow process for hydrate formation in seeping seafloor sediments. Free gas can not only be present but also take part in formation of hydrate.
Guan, Jinan, Liang, Deqing, Wu, Nengyou, Fan, Shuanshi   +3 more
core   +1 more source

A machine learning assisted method for rapidly annotating benthic megafauna in large volumes of marine imagery

Limnology and Oceanography: Methods, EarlyView.
Abstract Recent technological advancements have rapidly expanded our capacity for collecting image data in the marine environment, but processing images into meaningful ecological metrics remains a manual, time‐consuming, and biased process. This is particularly challenging with electro‐optical cabled imaging systems which generate images at a rate ...
Katharine T. Bigham, Ada Carter
wiley   +1 more source