scholarly journals Cobalt(II) Chloride Complex of Propylene-1,3-diamine as CO2 Absorber

2019 ◽  
Vol 32 (1) ◽  
pp. 215-218
Author(s):  
E. Liu ◽  
Fangfang Jian

A new CO2 absorber is reported in this paper. When CoCl3 is mixed with propylenediamine at room temperature and atmospheric ambient pressure, the extremely low concentration of CO2 in the air can be absorbed to form a stable metal complex [Co(PPD)2CO3]Cl·H2O (PPD = 1,3-propylenediamine). The CO2 capture capacity can reach 23.6 wt. %. Although Co is relatively expensive, the practical use of cobalt metal complexes produced still needs to be developed. This study provides an idea of capturing CO2 at low concentration under normal conditions. Through the structural characterization and performance study of complex [Co(PPD)2CO3]Cl·H2O, a new method for CO2 capture was explored. Thermogravimetric analysis data show that the compound [Co(PPD)2CO3]Cl·H2O has the ability to desorption CO2 and H2O at 160-220 ºC, and the ability to adsorb CO2 or regenerate CO2 is being explored. The electrochemical property of compound [Co(PPD)2CO3]Cl·H2O were also investigated.

2012 ◽  
Vol 55 ◽  
pp. 18-26 ◽  
Author(s):  
Qiang Wang ◽  
Hui Huang Tay ◽  
Zhanhu Guo ◽  
Luwei Chen ◽  
Yan Liu ◽  
...  

2016 ◽  
Vol 4 (3) ◽  
pp. 1439-1445 ◽  
Author(s):  
Jie Chen ◽  
Jie Yang ◽  
Gengshen Hu ◽  
Xin Hu ◽  
Zhiming Li ◽  
...  

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2220 ◽  
Author(s):  
Szu-Chen Wu ◽  
Po-Hsueh Chang ◽  
Chieh-Yen Lin ◽  
Cheng-Hsiung Peng

In this study, Ca-based multi-metals metal-organic framework (CaMgAl-MOF) has been designed as precursor material for carbon dioxide (CO2) capture to enhance the CO2 capture capacity and stability during multiple carbonation-calcination cycles. The CaMgAl-MOFs were constructed from self-assembly of metal ions and organic ligands through hydrothermal process to make metal ions uniformly distributed through the whole structure. Upon heat treatment at 600 °C, the Ca-based multi-metals CaMgAl-MOF would gradually transform to CaO and MgO nanoparticles along with the amorphous aluminum oxide distributed in the CaO matrix. XRD, Fourier transform infrared (FTIR), and SEM were used to identify the structure and characterize the morphology. The CO2 capture capacity and multiple carbonation-calcination cyclic tests of calcined Ca-based metal-organic framework (MOF) (attached with O and indicated as Ca-MOF-O) were performed by thermal gravimetric analysis (TGA). The single metal component calcined Ca-MOF sorbent have the highest CO2 capture capacity up to 72 wt.%, but a lower stability of 61% due to severe particle aggregation. In contrast, a higher Ca-rich MOF oxide sorbent with tailoring the Mg/Al ratios, Ca0.97Mg0.025Al0.005-MOF-O, showed the best performance, not only having the high stability of ~97%, but also maintaining the highest capacity of 71 wt.%. The concept of using Ca-based MOF materials combined with mixed-metal ions for CO2 capture showed a potential route for achieving efficient multiple carbonation-calcination CO2 cycles.


RSC Advances ◽  
2014 ◽  
Vol 4 (99) ◽  
pp. 55877-55883 ◽  
Author(s):  
F. Akhtar ◽  
N. Keshavarzi ◽  
D. Shakarova ◽  
O. Cheung ◽  
N. Hedin ◽  
...  

Monoliths of microporous aluminophosphates (AlPO4-17 and AlPO4-53) were structured by binder-free pulsed current processing.


2013 ◽  
Vol 17 ◽  
pp. 423-430 ◽  
Author(s):  
Kali-Stella Zoannou ◽  
Devin J. Sapsford ◽  
Anthony J. Griffiths

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