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High surface area biocarbon monoliths for methane storage

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Green Energy & Environment 2023年第5期8卷 1308-1324页

作者： Elizabeth Michaelis Renfeng Nie Douglas Austin Yanfeng Yue Department of Chemistry Delaware State UniversityDoverDE 19901United States College of Chemical Engineering Zhengzhou UniversityZhengzhouHenan450001China

New energy sources that reduce the volume of harmful gases such as SO_(x)and NO_(x)released into the atmosphere are in constant *** gas,primarily made up of methane,is being widely used as one reliable energy source for heating and electricity generation due to its high combustion ***,natural gas accounts for a large portion of electricity generation and chemical feedstock in manufacturing plastics and other commercially important organic *** the near future,natural gas will be widely used as a fuel for ***,a practical storage device for its storage and transportation is very beneficial to the deployment of natural gas as an energy source for new *** this tutorial review,biomaterials-based carbon monoliths(CMs),one kind of carbonaceous material,was reviewed as an adsorbent for natural gas(methane)adsorption and storage.

关键词： Activated carbon Carbon monolith methane storage High surface area Activation agent

A robust soc-MOF platform exhibiting high gravimetric uptake and volumetric deliverable capacity for on-board methane storage

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Nano Research 2021年第2期14卷 512-517页

作者： Gaurav Verma Sanjay Kumar Harsh Vardhan Junyu Ren Zheng Niu Tony Pham Lukasz Wojtas Sydney Butikofer Jose C Echeverria Garcia Yu-Sheng Chen Brian Space and Shengqian Ma Department of Chemistry University of South Florida4202 E.Fowler Ave.TampaFL 33637USA ChemMatCARS Center for Advanced Radiation SourcesThe University of Chicago9700 South Cass AvenueArgonneIL 60439USA Department of Chemistry Multani Mai Modi CollegePatiala 147001India Department of Chemistry Biochemistryand PhysicsThe University of Tampa401 W.Kennedy Blvd.TampaFL 33606-1490USA Department of Chemical and Biomolecular Engineering University of Illinois at Urbana-ChampaignChampaignIL 61801USA

Emerging as an outperformed class of metal-organic frameworks(MOFs),square-octahedron(soc)topology MOFs(soc-MOFs)feature superior properties of high porosity,large gas storage capacity,and excellent thermal/chemical *** report here an iron based soc-MOF,denoted as Fe-pbpta(H4pbpta=4,4',4'',4'''-(1,4-phenylenbis(pyridine-4,2-6-triyl))-tetrabenzoic acid)possessing a very high Brunauer,Emmett and Teller(BET)surface area of 4,937 m2/g and a large pore volume of 2.15 cm3/*** MOF demonstrates by far the highest gravimetric uptake of 369 cm3(STP)/g under the DOE operational storage conditions(35 bar and 298 K)and a high volumetric deliverable capacity of 192 cc/cc at 298 K and 65 ***,Fe-pbpta exhibits high thermal and aqueous stability making it a promising candidate for on-board methane storage.

关键词： metal-organic framework(MOF) reticular chemistry methane storage aqueous stability high gravimetric and volumetric uptake

Preparation of activated carbon with high surface area for high-capacity methane storage

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Journal of Energy Chemistry 2014年第5期23卷 662-668页

作者： Bingsi Liu Wenshuo Wang Na Wang (Peter) Chak Tong Au Department of Chemistry School of Science Tianjin University Department of Chemistry Hong Kong Baptist UniversityKowloon Tong Hong Kong China

Activated carbon （AC） was fabricated from corncob, which is cheap and abundant. Experimental parameters such as particle size of corncob, KOHlchar weight ratio, and activation temperature and time were optimized to generate AC, which shows high methane sorption capacity. AC has high specific surface area （3227 m^2/g）, with pore volume and pore size distribution equal to 1.829 cm^3/g and ca. 1.7-2.2 nm, respectively. Under the condition of 2℃ and less than 7.8 MPa, methane sorption in the presence of water （Rw = 1.4） was as high as 43.7 wt% methane per unit mass of dry AC. The result is significantly higher than those of coconut-derived AC （32 wt%） and ordered mesoporous carbon （41.2 wt%, Rw = 4.07） under the same condition. The physical properties and amorphous chaotic structure of AC were characterized by N2 adsorption isotherms, XRD, SEM and HRTEM. Hence, the corncob-derived AC can be considered as a competitive methane-storage material for vehicles, which are run by natural gas. Key words

关键词： corncob activated carbon methane storage hydrate adsorption

Improving methane storage on wet activated carbons at various amounts of water

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燃料化学学报 2012年第4期40卷 385-389页

作者： MOHAMMAD JABER DARABI MAHBOUB ALI AHMADPOUR HAMED RASHIDI Department of Chemical Engineering Faculty of EngineeringFerdowsi University of Mashhad

Different mesoporous activated carbons were prepared by both chemical and physical activation processes and were examined for methane uptake in the presence of *** isotherms were obtained at wet condition by wetting samples with water at mass ratio of water/carbon(R) close to *** compare,the amount of methane storage were also measured at dry *** maximum amount of methane stored was attained as 237 V/V at R=1.0 by hydrate formation at the methane critical *** the next step,mass ratios of water/carbon were changed to investigate various amount of water for methane storage *** other values of mass ratio of water/carbon(R=0.8 and 1.4) were selected and methane isotherms were obtained at the same *** values of 210 and 248 V/V were reached for methane storage,*** was also observed that,in the pressure range lower than hydrate pressure,by increasing water ratio the hydrate formation pressure was decreased and methane uptake was much less than that of dry condition due to pore filling by water.

关键词： methane storage hydrate isotherm water wetting

A novel pillared-layer-type porous coordination polymer featuring three-dimensional pore system and high methane storage capacity

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Science China Chemistry 2016年第8期59卷 970-974页

作者： Jiao-Min Lin Chun-Ting He Pei-Qin Liao Dong-Dong Zhou Jie-Peng Zhang Xiao-Ming Chen Key Laboratory of Bioinorganic and Synthetic Chemistry Ministry of EducationSchool of Chemistry and Chemical Engineering Sun Yat-Sen University Guangzhou 510275 China

Solvothermal reaction of Zn（NO3）2, 4-（1H-pyrazol-4-yl）pyridine （Hpypz） and 1,3,5-benzenetricarboxylic acid （H3btc） in N,N-dimethylacetamide （DMA） produced a new porous coordination polymer [Zns（pypz）4（btc）2] （1）. Single-crystal X-ray diffraction study of 1 showed that deprotonated pypz^- ligands served as 1,2,4-triazolate-like ligands, linking Zn（II） ^＋ ions to form porous two-dimensional （2-D） sql-a layers {Zn（pypz）} , which were further connected by eight-legged pillars {Zn2（btc）4（H2O）2}8- based on the typical paddlewheel dinuclear Zn2（RCOO）4（H20）2 cluster to form a novel type of non-interpenetrated pillared-layer framework with 3-D intersecting pore system and large pore volume. Gas sorption measurements revealed that 1 possesses large BET surface area of 2061 m^2g^-1 and very high methane total uptake of 245 cm^3（STP） cm^-3 at 298 K and 65 bar.

关键词： metal-organic framework network topology eight-legged pillar methane storage

Accelerated methane storage in clathrate hydrates using surfactantstabilized suspension with graphite nanoparticles

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Chinese Journal of Chemical Engineering 2020年第4期28卷 1112-1119页

作者： Liang Yang Xin Wang Daoping Liu Guomin Cui Binlin Dou Juan Wang Shuqing Hao Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering School of Energy and Power EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China School of Environmental and Chemical Engineering Shanghai University of Electric PowerShanghai 200090China National Engineering Research Center of Coal Preparation and Purification China University of Mining&TechnologyXuzhou 221116China

In this study,enhanced kinetics of methane hydrate formation in the sodium dodecyl sulfate(SDS)solution with different concentrations of suspended graphite nanoparticles(GNPs)were investigated at 6.1-9.0 MPa and 274.15 *** GNPs with rough surfaces and excellent thermal conductivity not only provided a considerable number of microsites for hydrate nucleation but also facilitated the fast hydrate heat transfer in the suspension *** a relatively low pressure of 6.1 MPa,the suspension with 0.4 wt%of GNPs exhibited the minimum induction time of 22 min and maximum methane uptake of 126.1 cm3·***,the methane storage performances of the suspensions with higher and lower concentrations of GNPs were not *** the applied pressure,the temperature increase arising from the hydrate heat in the suspension system with the optimized concentration(0.4 wt%)of GNPs was more significant than that in the traditional SDS ***,compared with those of the system without GNPs,enhanced hydration rate and storage capacity were achieved in the suspensions with GNPs,and the storage capacities were increased by 3.9%-17.0%.The promotion effect of GNPs on gas hydrate formation at low pressure is much more obvious than that at high pressure.

关键词： methane storage clathrate hydrates formation kinetics suspension graphite nanoparticles

Synthesis of nanoporous copper terephthalate [MIL-53(Cu)] as a novel methane-storage adsorbent

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Journal of Natural Gas Chemistry 2012年第6期21卷 680-684页

作者： Mansoor Anbia Sara Sheykhi Research Laboratory of Nanoporous Materials Faculty of Chemistry Iran University of Science and Technology

Copper （II） dicarboxylate, MIL-53, metal-organic framework synthesized hydrothermally has been used for the first time as an adsorbent for methane gas adsorption. methane adsorption capacity of MIL-53（Cu） was increased to about 8.52 mmol·g-1 at 298 K and 35 bar for methane storage. The adsorbent was characterized by X-ray diffraction （XRD）, Brunauer-Emmet-Teller （BET） method, Fourier transform infrared （FT-IR）, thermo gravimetric analysis （TGA） and scanning electron microscopy （SEM）. The adsorption property of CH4, on MIL-53（Cu） was investigated by volumetric measurement. The enhancement of CH4 adsorption capacity of MIL-53（Cu） is attributed to the increase of micropore volume of MIL-53（Cu）.

关键词： metal organic framework MIL-53(Cu) methane storage hydrothermal volumetric measurement

Turning gas hydrate nucleation with oxygen-containing groups on size-selected graphene oxide flakes

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Journal of Energy Chemistry 2023年第12期87卷 351-358,I0009页

作者： Huiquan Liu Changrui Shi Zherui Chen Shuai Wang Mingjun Yang Jiafei Zhao Cong Chen Yongchen Song Zheng Ling Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education School of Energy&Power EngineeringDalian University of TechnologyDalian 116024LiaoningChina Ningbo Institute of Dalian University of Technology Ningbo 315016ZhejiangChina

Gas hydrate is a promising alternative for gas capture and storage due to its high gas storage capacity achieved with only structured water *** is the critical controlling step in gas hydrate *** an alien solid surface is an effective approach to regulate gas hydrate ***,how the solid surface compositions control the gas hydrate nucleation remains *** from the fact that the surface compositions of graphene oxide(GO)can be finely tuned,we report the effect of functional groups of size-selected GO flakes on methane hydrate *** carbonyl and carboxyl of GO flakes showed a more prominent promotion for methane hydrate nucleation than the hydroxyl of GO *** energy,zeta potential,Raman spectra,and molecular dynamics simulation analysis were used to reveal the regulation mechanism of the functional groups of size-selected GO flakes on methane hydrate *** GO flakes with abundant carbonyl and carboxyl exhibited higher charge density than those enriched in *** negatively charged GO flakes can induce water molecules to form an ordered hydrogen-bonded arrangement via charge-dipole ***,the water molecules surrounding the carboxyl and carbonyl showed a more ordered hydrogen-bonded structure than those around the hydroxyl of GO *** ordered water arrangement,similar to methane hydrate cages,significantly accelerated methane hydrate *** study shows how the surface chemistry of solids control gas hydrate nucleation and sheds light on the design of effective heterogeneous nucleators for gas hydrate.

关键词： methane hydrate methane storage Energy storage Surface energy Hydrogen-bonded water