Results 101 to 110 of about 28,105 (213)

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

Synthesis of Carbon Nanotubes From CO2 Enabled by Fe–Mo Bimetallic Catalysts via Effective CO2 Scavenging

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The tandem process involves CO2 methanation and CH4 pyrolysis for CNT synthesis. Unreacted CO2 and H2 from methanation oxidize Fe, suppressing CNT growth on Fe‐only catalysts. Incorporation of Mo into Fe/MgO forms Mo2C, which prevents Fe oxidation under CO2/H2 conditions and thereby enables CNT formation.
Eunchae Oh, Jaewon Jang, Yoon Kyeung Lee, Junghoon Yang, Byung‐Joo Kim, Jungpil Kim   +5 more
wiley   +1 more source

Solar Fuels Via Methane Valorization: Thermochemical Pathways, Unified Metrics, and Techno‐Economic Perspectives

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A first‐of‐its‐kind review benchmarks three solar methane valorization pathways with unified performance metrics for clean fuel production. Meeting global climate targets and sustainable energy demands requires carbon‐neutral fuels and innovative conversion pathways.
Muhammad Abdulmoez, Amjad Othman, Majid Linjawi, Amro Al‐Qutub   +3 more
wiley   +1 more source

SCIENTIFIC SUBSTANTIATION OF ENERGY-EFFICIENT AND LOW- WASTE TECHNOLOGY OF CARBOHYDRATE RESOURCES DEVELOPMENT [PDF]

, 2018
Scientific substantiation and development of energy-efficient low- waste technology for hydrocarbon raw materials extraction by changing its aggregate state by physico-chemical interference, taking into account the ...
LOZYNSKYI, Vasyl, PETLOVANYI, Мykhailo, SAI, Kateryna, SAIK, Pavlo, Лозинский, В. Г., Лозинский, Василий Григорьевич, Лозинський, В. Г., Лозинський, Василь Григорович, Петлеваный, М. В., Петлеваный, Михаил Владимирович, Петльований, М. В., Петльований, Михайло Володимирович, Саик, П. Б., Саик, Павел Богданович, Саїк, П. Б., Саїк, Павло Богданович   +15 more
core  

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

Correlation Between the Molecular Structure of Metal‐Supporting Ligands and Catalysis in the Oxygenase‐Mimicking Immobilized Metal Complex Catalysts

European Journal of Inorganic Chemistry, EarlyView.
The correlation between the structures of metal complexes immobilized in the mesopores of hydrophobically modified silicate supports was examined in relation to the catalytic activities toward C‐H oxidation. On the alkene oxidation with H2O2, the iron catalyst bearing bis(imidazolyl)methane ligand promotes allylic oxidation, whereas the mononuclear ...
Yuta Akizawa, Hiroe Fukuzaki, Nana Aizawa, Sho Ikeda, Airi Kawabe, Saori Nishiyama, Iori Nagasawa, Masaya Okamura, Shiro Hikichi   +8 more
wiley   +1 more source

Push–Pull Ynamines and Push–Pull Ynamides: Synthesis, Structure, Reactivity, and Application

European Journal of Organic Chemistry, EarlyView.
Push–pull ynamines and push–pull ynamides, which carry an EWG and an amino or amido group as EDG, are highly interesting classes of EDG‐EWG alkynes that have been intensively studied due to their exceptional reactivity. In this review, the synthesis, structure, reactivity, and application of push–pull ynamines, push–pull ynecarbamates, push–pull ...
Hans‐Joachim Gais
wiley   +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

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