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多孔氫鍵金屬-有機(jī)框架材料對(duì)乙炔和二氧化碳的吸附分離

發(fā)布時(shí)間:2018-05-21 02:00

  本文選題:氫鍵金屬-有機(jī)框架材料 + 慢擴(kuò)散合成法。 參考:《化工學(xué)報(bào)》2017年01期


【摘要】:以腺嘌呤和溴化銅(氯化銅)為原料,采用慢擴(kuò)散合成法,合成多孔氫鍵金屬-有機(jī)框架材料MPM-1-Br和MPM-1-Cl。采用SEM、PXRD、TGA及比表面積分析等技術(shù)對(duì)材料進(jìn)行綜合表征,并測(cè)定了此二種同構(gòu)多孔氫鍵金屬-有機(jī)框架材料對(duì)乙炔和二氧化碳單組分氣體的吸附等溫線。實(shí)驗(yàn)結(jié)果表明,MPM-1-Br和MPM-1-Cl的比表面積分別為373 m~2·g~(-1)和417 m~2·g~(-1),且在240℃的溫度范圍內(nèi)有良好的穩(wěn)定性;在298 K和總壓100 kPa下,通過(guò)IAST理論計(jì)算得到其對(duì)C_2H_2/CO_2混合氣體(體積比50:50)的吸附選擇性分別達(dá)到了3.8和3.0,與HKUST-1(4.7)和UTSA-30(3.3)等金屬-有機(jī)框架材料有相當(dāng)?shù)姆蛛x性能。
[Abstract]:Porous hydrogen bonding metal-organic frame materials MPM-1-Br and MPM-1-Cl were synthesized from adenine and copper bromide (cupric chloride) by slow diffusion synthesis. The adsorption isotherms of acetylene and carbon dioxide one-component gases were determined by means of SEMP-PXRDGA and specific surface area analysis, and the adsorption isotherms of the two isomorphic porous hydrogen bonding metal-organic framework materials for acetylene and carbon dioxide were determined. The experimental results show that the specific surface areas of MPM-1-Br and MPM-1-Cl are 373mtmc2gn-1) and 417mt2gc-1, respectively, and have good stability in the temperature range of 240 鈩,

本文編號(hào):1917218

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