The influence of particle size of amino-functionalized MCM-41 silicas on CO2 adsorption
文献信息
G. Gatti, C. Vittoni, D. Costenaro, G. Paul, E. Mangano, S. Brandani, L. Marchese
The CO2 adsorption properties of hybrid organic–inorganic MCM-41 silicas with different particle sizes are described here. Micrometric to nanometric MCM-41 silicas are functionalized by introducing amino groups via grafting of 3-[2-(2-aminoethyl)aminoethyl]aminopropyltrimethoxysilane (PAPTS). A combination of FTIR and SS-NMR spectroscopies is adopted to distinguish between physisorbed and chemisorbed CO2. A higher amount of CO2 is physisorbed in the nanometric sample because of a higher pore volume, whereas chemisorbed (carbamate and acid carbamic) species are more abundant in the micrometric sample. The adsorption process is also quantitatively studied using three different techniques (i.e. volumetric measurements, Thermo-Gravimetric Analysis (TGA) and Zero Length Column (ZLC) analysis), especially focusing on the reversibility of the reactions between CO2 and amino groups. The three techniques show a higher CO2 adsorption capacity for MCM-41 with nanometric size compared to the micrometric one. Finally, the process is studied at different temperatures (i.e. from 35 to 90 °C) in order to find the best operating conditions.
相关文献
A 3D-printed CuNi alloy catalyst with a triply periodic minimal surface for the reverse water-gas shift reaction
Junhao Ding, Xiao Chen, You Wang, Xu Song
DOI: 10.1039/D3TA05845J
Fluorinated carbon nitride with a hierarchical porous structure ameliorating PEO for high-voltage, high-rate solid lithium metal batteries
Shuohan Liu, Jieqing Shen, Zhikai Wang, Wensheng Tian, Xiujun Han, Zhixin Chen, Hui Pan, Lei Wang, Dongyu Bian, Shenmin Zhu
DOI: 10.1039/D3TA05495K
Correction: Synthesis of TiC nanotube arrays and their excellent supercapacitor performance
Tongxiang Ma, Yuzheng Pan, Junyu Chen, Zhiming Yan, Buxin Chen, Lang Zhao, Liwen Hu, Liangying Wen, Meilong Hu
DOI: 10.1039/D3TA90269B
Advanced electrolyte with high stability and low-temperature resistance for zinc-ion batteries
Qixian Bai, Qi Meng, Weiping Liu, Wenjun Lin, Pengfei Yi, Jingjing Tang, Guilin Zhang, Penghui Cao, Juan Yang
DOI: 10.1039/D3TA05052A
Fast redox conversion in lithium–sulfur batteries enabled by Cu-doped W18O49 with abundant oxygen defects
Guojun Dong, Yanfei Yang
DOI: 10.1039/D3TA05773A
Suppressing pre-aggregation to increase polymer solar cell ink shelf life
Zhen Wang, Zhengxing Peng, Nrup Balar, Harald Ade
DOI: 10.1039/D3TA06617G
Spiro[fluorene-9,9′-xanthene]-based hole shuttle materials for effective defect passivation in perovskite solar cells
Bommaramoni Yadagiri, Sanjay Sandhu, Ashok Kumar Kaliamurthy, Francis Kwaku Asiam, Jongdeok Park, Appiagyei Ewusi Mensah, Jae-Joon Lee
DOI: 10.1039/D3TA05915D
Optimizing dense particles for efficient thermochemical fuel generation through a unified particle-level model
Shuai Deng
DOI: 10.1039/D3TA05437C
您可能还喜欢
如何处理含有顺-二(2,2'-联吡啶)二氯化钌(II)二水合物(CAS号:67776-38-9)的废料?
处理含有该化合物的废料时,应先收集并分类,然后根据其危险特性选择合适的处理方法。推荐采用焚烧或由专业机构进行安全处理,以确保符合环保法规的要求。处理过程中应佩戴...
4-amino-2-bromo-3-iodopyridine(CAS号:1300750-77-9)的市场或研究趋势如何?
4-氨基-2-溴-3-碘吡啶主要应用于药物合成和研究领域,尤其是在抗病毒和抗癌药物的研发中。随着新型药物的需求增加,该化合物的研究趋势较好。市场方面,由于其特殊...
4-乙酰基氨基-2-氨基-苯甲酸(CAS号:43134-76-5)的市场或研究趋势如何?
当前,4-乙酰基氨基-2-氨基-苯甲酸(CAS号:43134-76-5)在医药和化工领域有一定的应用。随着药物研发的进展,该化合物在新型药物设计中的应用可能增加...
庚a氟-1-(1-碘-1,2,2,2-四氟乙氧基)丙烷(CAS号:107432-46-2)的市场或研究趋势如何?
该化合物目前主要用于特定的工业应用,如氟聚合物的合成。市场趋势显示,由于其独特的结构和性能,未来可能在新型氟材料和特种化学品领域有更多的应用。研究趋势方面,主要...
在合成中是否有Propargyl-PEG13-bromide(CAS号:2055105-25-2)的替代品?
可以考虑使用1,3-丁二烯-1-炔-3-基-聚乙二醇-13-溴化物作为Propargyl-PEG13-bromide的替代品,因为两者在结构上相似,均可用于合成...
2-氨基-6-甲氧基嘌呤(CAS号:20535-83-5)安全吗?
2-氨基-6-甲氧基嘌呤在正常使用条件下相对安全,但在操作时仍需注意防护措施,如佩戴手套和护目镜,避免吸入或接触皮肤和眼睛。
2-甲基-3-溴苯乙酸乙酯(CAS号:1261862-72-9)适用哪些法规指南?
该化合物根据其化学性质和潜在危害,可能适用于GHS(全球化学品统一分类和标签制度)的分类标准。具体分类需依据其毒性和燃烧危险性进行评估。此外,欧洲化学品管理局(...
4,4-二甲基吡咯烷-3-羧酸盐酸盐(CAS号:1351343-41-3)应用于哪些行业?
4,4-二甲基吡咯烷-3-羧酸盐酸盐在医药、聚合物和传感器领域有应用。在医药领域,它可以作为某些药物的中间体;在聚合物领域,它可用作某些聚合物的稳定剂;在传感器...
处理5-Hydroxy-7-methoxy-2-(4-methoxyphenyl)-4-oxo-4H-chromen-6-yl 2-O-beta-D-xylopyranosyl-beta-D-glucopyranoside(CAS号:149998-39-0)时应注意哪些实验室安全事项?
处理该化合物时应注意使用个人防护装备(如手套、护目镜和实验服),在通风橱中操作。避免直接接触皮肤和吸入,泄漏时应立即清理并使用适当的吸收材料。参考安全数据表(S...
7-甲基-1,2,3,4-四氢-吖啶-9-甲酸(CAS号:345621-27-4)的市场或研究趋势如何?
该化合物在医药研究中具有潜在应用价值,特别是在抗癌药物研发方面。随着研究的深入,对其合成方法的优化和生物活性的进一步探索将成为研究热点。
来源期刊
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










![4-(4-{4-[4-Fluoro-3-(trifluoromethyl)phenyl]-1-methyl-1H-imidazol-2-yl}-1-piperidinyl)-1H-pyrazolo[3,4-d]pyrimidine 4-methylbenzenesulfonate (1:1) structure 4-(4-{4-[4-Fluoro-3-(trifluoromethyl)phenyl]-1-methyl-1H-imidazol-2-yl}-1-piperidinyl)-1H-pyrazolo[3,4-d]pyrimidine 4-methylbenzenesulfonate (1:1) structure](https://cnstatic.chemtradehub.com/structs/108/1082949-68-5-00b6.webp)

![4-Nitrophenyl N-{[(2-methyl-2-propanyl)oxy]carbonyl}-L-isoleucinate structure 4-Nitrophenyl N-{[(2-methyl-2-propanyl)oxy]carbonyl}-L-isoleucinate structure](https://cnstatic.chemtradehub.com/structs/169/16948-38-2-c88f.webp)

