Size-dependent CO2 capture in chemically synthesized magnesium oxide nanocrystals

The carbon dioxide storage capacity of magnesium oxide (MgO) particles was examined as a function of particle size, shape, and surface area. Two types of MgO nanocrystals (5 nm spheres and 23 nm disks) were synthesized and compared against commercially available MgO (325 mesh/44 μm and 40 mesh/420 μm). The surface area of the four types of particles was determined by N2 gas adsorption. Carbon dioxide capture was measured at 60 °C and 600 °C using thermogravimetric analysis, with results indicating enhanced CO2 capacity correlating with increased surface area.

[1]  S. Halawy,et al.  Qualitative and Quantitative Assessments of Acid and Base Sites Exposed on Polycrystalline MgO Surfaces: Thermogravimetric, Calorimetric, and in-Situ FTIR Spectroscopic Study Combination , 2004 .

[2]  Renu Sharma,et al.  In situ and ex situ electron microscopy studies of polar oxide surfaces with rock‐salt structure , 2002 .

[3]  Michael O'Keeffe,et al.  Synthesis, structure, and carbon dioxide capture properties of zeolitic imidazolate frameworks. , 2010, Accounts of chemical research.

[4]  Lifang Chen,et al.  MgO(111) Nanosheets with Unusual Surface Activity , 2007 .

[5]  Bo Wang,et al.  Highly efficient separation of carbon dioxide by a metal-organic framework replete with open metal sites , 2009, Proceedings of the National Academy of Sciences.

[6]  Myunghyun Paik Suh,et al.  Highly selective CO(2) capture in flexible 3D coordination polymer networks. , 2009, Angewandte Chemie.

[7]  D. Milliron,et al.  Size-controlled synthesis and optical properties of monodisperse colloidal magnesium oxide nanocrystals. , 2009, Angewandte Chemie.

[8]  I. Lagadic,et al.  Nanoscale metal oxide particles/clusters as chemical reagents. Unique surface chemistry on magnesium oxide as shown by enhanced adsorption of acid gases (sulfur dioxide and carbon dioxide) and pressure dependence , 1996 .

[9]  Yadong Yin,et al.  Cation Exchange Reactions in Ionic Nanocrystals , 2004, Science.

[10]  Ji Yun Lee,et al.  Synthesis of mesoporous magnesium oxide: Its application to CO2 chemisorption , 2010 .

[11]  Direct measurement of the attractive interaction forces on F0 color centers on MgO(001) by dynamic force microscopy. , 2010, ACS nano.

[12]  A. Gedanken,et al.  Evaluation of metal oxide phase assembling mode inside the nanotubular pores of mesostructured silica , 2005 .

[13]  A. Załuska,et al.  Structure, catalysis and atomic reactions on the nano-scale: a systematic approach to metal hydrides for hydrogen storage , 2001 .

[14]  D. D’Alessandro,et al.  Strong CO2 binding in a water-stable, triazolate-bridged metal-organic framework functionalized with ethylenediamine. , 2009, Journal of the American Chemical Society.

[15]  Taeghwan Hyeon,et al.  Ultra-large-scale syntheses of monodisperse nanocrystals , 2004, Nature materials.

[16]  Kaoru Fujimoto,et al.  FTIR spectroscopic study of carbon dioxide adsorption/desorption on magnesia/calcium oxide catalysts , 1992 .

[17]  François Huaux,et al.  Influence of size, surface area and microporosity on the in vitro cytotoxic activity of amorphous silica nanoparticles in different cell types , 2010, Nanotoxicology.

[18]  Hyun‐Kon Song,et al.  Adsorption of carbon dioxide on the chemically modified silica adsorbents , 1998 .

[19]  Jason Graetz,et al.  Nanoscale Energy Storage Materials Produced by Hydrogen‐Driven Metallurgical Reactions , 2005 .

[20]  Satish K. Nune,et al.  Metal organic gels (MOGs): a new class of sorbents for CO2 separation applications , 2010 .

[21]  B. Smit,et al.  Carbon dioxide capture: prospects for new materials. , 2010, Angewandte Chemie.

[22]  Robert Hausler,et al.  Molecular analysis of carbon dioxide adsorption processes on steel slag oxides , 2009 .