在镍银铝三金属层状双氢氧化物中原位制备用于二氧化碳捕集材料的新型三元纳米/微复合材料 LDH/Ag2O/Bayerite

IF 2.7 4区 环境科学与生态学 Q3 ENERGY & FUELS Greenhouse Gases: Science and Technology Pub Date : 2024-05-18 DOI:10.1002/ghg.2282
Muh. Nur Khoiru Wihadi
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引用次数: 0

摘要

我们报告了通过水热技术在镍银铝三金属层状双氢氧化物(LDH)中制备的新型原位三元纳米/微复合层状双氢氧化物/氧化银/贝叶石,并通过粉末 X 射线衍射(XRD)、傅立叶变换红外光谱(FT-IR)、场发射扫描电子显微镜(FE-SEM)、能量色散光谱(EDS)和 N2 吸附-解吸进行了表征。在碱性和水热条件下,LDH 纳米片上形成的贝叶石和氧化银物种取决于溶液中 Al3+ 和 Ag+ 的过量。所有三元复合材料的氮等温线吸附曲线都表现出均匀的介孔和片状特征。所有复合材料的表面积在 81.17 至 150.23 m2. g-1 之间,Barret-Joyner-Halenda(BJH)孔体积在 0.22 至 0.27 cm3. g-1 之间,平均孔直径在 3.47 至 5.78 nm 之间。所有复合材料都呈现出层状板状结构,上面覆盖着细长的碎片。复合材料的粒度范围为 54.86 至 115.96 nm,表明由于固体中 Ag 和 Ni 的摩尔比不同,复合材料的粒度从纳米级变为微米级。三元复合材料具有二氧化碳捕集活性,吸附容量在 13.93 到 19.61 mmol g-1 之间。© 2024 化学工业协会和约翰威利父子有限公司版权所有。
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Fabrication of new in-situ ternary nano/microcomposite LDH/Ag2O/Bayerite in trimetallic NiAg/Al layered double hydroxides for CO2 capture material

We reported new in-situ ternary nano/microcomposite layered double hydroxides/Ag2O/bayerite in trimetallic NiAg/Al layered double hydroxides (LDH) via hydrothermal technique; and characterization by powder X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM), energy dispersive spectroscopy (EDS), and N2 adsorption-desorption. The formation of bayerite and silver oxide species on the LDH nanosheet depended on the excess of Al3+ and Ag+ in the solution under alkaline and hydrothermal conditions. The nitrogen isotherm adsorption profile for all ternary composites exhibited uniformity with mesoporous and lamellar characteristics. The surface area of all the composites ranged from 81.17 to 150.23 m2. g−1, the Barret-Joyner-Halenda (BJH) pore volume from 0.22 to 0.27 cm3. g−1, and the average pore diameter ranged from 3.47 to 5.78 nm. All composites show a laminar plate-like structure covered with elongated pieces. The particle size of the composites ranged from 54.86 to 115.96 nm, indicating the size changed from nano to microcomposite because of the different molar ratios of Ag and Ni in the solid. The ternary composite reveals CO2 capture activity with adsorption capacity ranging from 13.93 to 19.61 mmol g−1. © 2024 Society of Chemical Industry and John Wiley & Sons, Ltd.

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来源期刊
Greenhouse Gases: Science and Technology
Greenhouse Gases: Science and Technology ENERGY & FUELS-ENGINEERING, ENVIRONMENTAL
CiteScore
4.90
自引率
4.50%
发文量
55
审稿时长
3 months
期刊介绍: Greenhouse Gases: Science and Technology is a new online-only scientific journal dedicated to the management of greenhouse gases. The journal will focus on methods for carbon capture and storage (CCS), as well as utilization of carbon dioxide (CO2) as a feedstock for fuels and chemicals. GHG will also provide insight into strategies to mitigate emissions of other greenhouse gases. Significant advances will be explored in critical reviews, commentary articles and short communications of broad interest. In addition, the journal will offer analyses of relevant economic and political issues, industry developments and case studies. Greenhouse Gases: Science and Technology is an exciting new online-only journal published as a co-operative venture of the SCI (Society of Chemical Industry) and John Wiley & Sons, Ltd
期刊最新文献
Issue Information Core-flooding experiments of various concentrations of CO2/N2 mixture in different rocks: II. Effect of rock properties on residual water Development of a multicomponent counter-current flow model to evaluate the impact of oxygen and water vapor on CO2 removal performance in a hollow fiber membrane contactor Invasion percolation & basin modelling for CCS site screening and characterization A study on degradation and CO2 capture performance of aqueous amino acid salts for direct air capture applications
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