ENERGY & FUELS
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2023
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IF 5.3
Cunshi Wang,Qiuzi Zhu,Zhimin Gao,Jianzhong Zhu,Liang Chen,Jianlong Liu,Wangjun Bai
The chemical absorption of CO2 using amine aqueous solutions is the most well-established and efficient approach to CCUS technology. However, these solutions can corrode carbon steel infrastructure, impacting production safety and cost-effectiveness. This study identifies a high CO2 loading (1.2561 mol mol–1) ternary system of 1,4-butanediamine (BDA), ethylene glycol (EG), and 70 wt % H2O (BE70H). The corrosion behavior and mechanism of BE70H on 20# carbon steel (20CS) were studied by weight loss test, ICP-OES analysis, electrochemical experiment, and various characterization techniques, with 30 wt % MEA solution was selected as a reference. The results show that the CO2-loaded amine solution is more corrosive to 20CS than the fresh solution. Fresh and CO2-saturated BE70H solutions (BE70HS) exhibited lower corrosion rates and lower iron concentrations. The characterization results showed that the surface of 20CS corroded by BE70HS formed a dense siderite (FeCO3) film. This film is believed to provide better corrosion inhibition than the chukanovite (Fe2CO3(OH)2) film formed in MEA-saturated solutions. The quantum chemical parameters, such as EHOMO, ELUMO, and ΔE, indicate that BDA molecules exhibit stronger adsorption on the surface of 20CS compared to MEA, effectively inhibiting the penetration of corrosive agents. The FeCO3 film and the adsorbed BDA layer on the 20CS surface are considered the major and minor pathways of corrosion inhibition, respectively. Furthermore, the phase separation behavior of the BE70H solution can potentially lead to differences in corrosiveness, making it a critical factor to consider in equipment anticorrosion design.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2023
·
IF 8.6
Cunshi Wang,Gongkui Xiao,Xiaobin Zhou,Qiuzi Zhu,Yuanyi Chen,Zhimin Gao,Chao Liu,Jianzhong Zhu
Liquid-solid phase change absorption has been considered a promising strategy for CO 2 capture. To achieve efficient and economic CO 2 capture in industrial-scale applications, it is essential to understand the phase-change behaviors and mechanisms of the biphasic system. In this study, a blend of 1, 4-Butanediamine (BDA) and ethylene glycol (EG) was developed as a biphasic solvent that can form a high CO 2 loading solid phase product (BESP) after absorption. The total solvent loading reached 0.9039 mol·mol −1 , with 90.74% of the loading enriched in the solid phase, which only accounts for 51.01% of the total solvent mass. Based on the 13 C NMR analysis and quantum chemical calculations, the reaction and phase change mechanism of CO 2 capture was proposed. The BDA/EG system absorbs CO 2 to generate carbamate species, protonated amines and alkyl-carbonates, which combine each other through hydrogen bonding or electrostatic attraction. The self-aggregation of zwitterions and the high polarity of the absorption products are considered to be the main reasons for the phase change. Alkyl-carbonate species are believed to co-precipitate through organic gelation via van der Waals force with the carbamate or protonated amine. Moreover, the viscosity, turbidity, solid-phase mass, and particle size distribution changes also demonstrate the growth and aggregation of particles during absorption. BESP, identified as a coupling product of carbamate and alkyl-carbonate ( [2BDAH + COO - ] · [EG‐OCO 2 - ] ), decomposes at a peak temperature of 127.4 °C. The calorimetric method determined regeneration heat to be approximately 3.17 GJ·ton -1 CO 2 , indicating its potential for alternative uses rather than direct heat regeneration. Such a biphasic solvent may provide unique solutions for industries to reduce CO 2 emissions.
研究领域:
化学工程
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环境科学
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DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2013
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IF 2.004
Zhicheng Xu,Shujuan Wang,Changhe Chen
Densities of and N2O solubilities in aqueous solutions of 1,4-butanediamine (BDA), 2-(diethylamino)-ethanol (DEEA), and their aqueous mixtures were measured at (298.15, 313.15, and 333.15) K, and viscosities were measured at (298.15, 303.15, 313.15, 323.15, and 333.15) K. The experiments cover the mole fraction ranges (1.95–14.3 mol %) BDA, (2.01–19.3 mol %) DEEA, and (3.63–16.7 mol %) BDA + (2.62–22.2 mol %) DEEA in the blended solutions. The results were compared with available data in the literature. The experimental density and viscosity data were correlated using two semi empirical correlations in the literature as functions of temperature and concentration of BDA and DEEA.
研究领域:
化学工程
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物理化学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION
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2018
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IF 1.333
Qiao Zhang,Jianjun Fang,Wenjuan Liu,Yunhui Zhao,Tianlong Huang,Jiale Cui,Yun Yang,Zhihua Zhou
Bone tissue engineering is sought to apply strategies for bone defects healing biodegradable porous scaffolds without limitations and shortcomings. In this work, we have developed a novel maleic anhydride (MAH) and 1,4-butanediamine modified poly(lactide-co-glycolide) polymer (BMPLGA). The synthesized polymer was characterized by Fourier transform infrared spectrometry (FTIR), Nuclear magnetic resonance spectra (1H NMR), gel permeation chromatography (GPC) and contact angle measurements. In addition, cell morphologies in the extracts and cell cytotoxity were also studied. The results showed that the BMPLGA was successfully obtained by introducing MAH and 1,4-butanediamine into PLGA in bulk. The introduction of anhydride and amino groups improved the hydrophilicity of PLGA. Fibroblastic cells showed normal morphologies in BMPLGA extracts, and the BMPLGA materials showed no cell cytotoxicity. The synthetic BMPLGA material may have potentials for biomedical applications due to improving hydrophilicity.
研究领域:
生物材料学
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医学工程
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2018
·Vol. 135
·期 30
·46530
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IF 1.901
Kaijie Dong,Qinze Liu,Gang Wei,Tao Hu,Jinshui Yao,Xian Zhang,Tingting Gao
A novel magnetic adsorbent, poly(catechol-1,4-butanediamine)-coated Fe 3 O 4 composite (Fe 3 O 4 @PCBA), was successfully fabricated via an easy and gentle method according to the mussel-inspired adhesion property of polydopamine. Effects of many factors on the adsorption performance of Fe 3 O 4 @PCBA for Cr(VI) were investigated, including temperature, pH value, contacting time, adsorbent dosage, and initial Cr(VI) concentration. The thermodynamics, adsorption isotherm, kinetics, and intraparticle diffusion of adsorption were also studied systematically. Results indicated that the removal rate of Cr(VI) was approximately close to 100% when the initial concentration was less than 120 mg/L, and the maximum uptake capacity of Fe 3 O 4 @PCBA for Cr(VI) was 280.11 mg/g complied with Langmuir isotherm model. Accordingly, the nocuous Cr(VI) could be partially reduced to Cr(III) during the adsorption period. Hopefully, this strategy could be extended to prepare series of magnetic Fe 3 O 4 @catechol–amine adsorbents with different amino and phenolic hydroxyl groups for Cr(VI) removal. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46530.
研究领域:
环境科学
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材料科学
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化学工程
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DOI
高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
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2022
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IF 3.269
Pan Zhang,Yanxi Ji,Wenya Li,Lihua Xu,Lemeng Wang,Dong Fu
The viscosities of N -(2-aminoethyl)ethanolamine (AEEA), 1,4-butanediamine (BDA) and N-methyl- 1,3-propane- diamine (MAPA) activated 2- diethylaminoethanol (DEAE) aqueous solutions were measured at temperatures ( T ) from 303.2 K to 323.2 K, respectively. The DEAE mass fractions ( w DEAE ) and the other three amines ( w AEEA / w BDA / w MAPA ) are 0.300 to 0.500 and 0.050 to 0.150 respectively. The Weiland equation was used to calculate the viscosity of these three solutions, and the calculation results were satisfied with data of the experimental results. With the aid of experimentally determined viscosity data, the activation energy ( E a) of these three solutions was predicted through the Arrhenius formula. With the help of the viscosity data and the diffusion coefficient model of CO 2 in water, the CO 2 diffusion coefficient ( D CO2 ) in these three solutions was calculated. The quantitative relationship between the calculated values (viscosity, activation energy and diffusion coefficient) and the operation conditions (solution mass fraction and temperature) was analyzed. Our results show that the DEAE-BDA absorbent has better application potential due to its lower viscosity, higher CO 2 diffusion coefficient and lower activation energy.
研究领域:
化学工程
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环境科学
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DOI
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-10
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IF 14.7
Pan Yongyan,Wang Jianan,Sun Zhenxing,Zhang Jiaqi,Zhou Zheng,Shi Chenyang,Liu Sanwan,Ren Fumeng,Chen Rui,Cai Yong,Sun Huande,Liu Bin,Zhang Zhongyong,Zhao Zhengjing,Cai Zihe,Qin Xiaojun,Zhao Zhiguo,Ji Yitong,Li Neng,Huang Wenchao,Liu Zonghao,Chen Wei
All-perovskite tandem solar cells have shown great promise in breaking the Shockley–Queisser limit of single-junction solar cells. However, the efficiency improvement of all-perovskite tandem solar cells is largely hindered by the surface defects induced non-radiative recombination loss in Sn–Pb mixed narrow bandgap perovskite films. Here, we report a surface reconstruction strategy utilizing a surface polishing agent, 1,4-butanediamine, together with a surface passivator, ethylenediammonium diiodide, to eliminate Sn-related defects and passivate organic cation and halide vacancy defects on the surface of Sn–Pb mixed perovskite films. Our strategy not only delivers high-quality Sn–Pb mixed perovskite films with a close-to-ideal stoichiometric ratio surface but also minimizes the non-radiative energy loss at the perovskite/electron transport layer interface. As a result, our Sn–Pb mixed perovskite solar cells with bandgaps of 1.32 and 1.25 eV realize power conversion efficiencies of 22.65% and 23.32%, respectively. Additionally, we further obtain a certified power conversion efficiency of 28.49% of two-junction all-perovskite tandem solar cells.
研究领域:
材料科学
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太阳能
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化学
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物理学
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产品关联
DOI
PubMed
高影响因子
Journal of Macromolecular Science Part B-Physics
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2022
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IF 1.366
Meimei Guo,Zhihua Zhou,Wenjuan Liu,Tianlong Huang,Wei Wu,Jianglong Duan,Meiling Yi,Chao Zhang,Xiao He,Jinxing Chen,Jiaming Gu,Jianjun Fang
Polymer/bioceramic composite scaffolds have gained importance in treating bone defects. In this paper we described a novel degradable scaffold material for bone tissue repairing prepared by combining poly(lactide-co-glycolide-co-ε-caprolactone) (PLLGC) and 1,4-butanediamine-modified poly(lactide-co-glycolide) (BMPLGA) with nano-biaoactive glass (NBAG) and nano β-tricalcium phosphate (β-TCP). The composite scaffolds were characterized by using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques. The FTIR results indicated that the inorganic fillers of NBAG and β-TCP were successfully incorporated into the PLLGC/BMPLGA matrix. The influences of the inorganic filler content and freezing temperature on the porosity and compressive strength of the composite scaffolds were studied. The composite scaffolds showed an interconnected pore structure with the pore size ranging from 20 to 100 μm depending on the freezing temperature and the inorganic fillers. The compressive strength was enhanced with increasing content of the inorganic fillers and the freezing temperature; however, the porosity decreased. We suggest the PLLGC-BMPLGA/NBAG-β-TCP composite scaffolds have great potential for application in bone tissue regeneration.
研究领域:
生物材料
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组织工程
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高分子科学
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生物医学工程
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材料表征
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DOI
高影响因子
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