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On the other hand, porous medium was regarded as natural chemistry “catalysis reactor”.
Journal of Fuel Chemistry and Technology, 2003, 31(5) : 429-433(In Chinese)
Journal of Fuel Chemistry and Technology, 2004, 32(1), 117-122(In Chinese)
Oilfield Chemistry, 2006, 23(2): 153-157(In Chinese)
Journal of Fuel Chemistry and Technology, 2001, 29(3): 269-272(In Chinese).

The obtained CAs displayed the interpenetrating network (IPN) structure of the regenerated cellulose nanofibers network and the SiO2 gel skeleton in nanoscale.
The IPN structure not only make sure the integrality of CAs, but also endowed excellent mechanical properties to them.
Summary The intact cellulose-silica CAs with IPN structure were prepared with freeze drying method.
Schubert, Aerogels—Airy Materials: Chemistry, Structure, and Properties.
Pajonk, Chemistry of Aerogels and Their Applications.

Shukla2,b, Pratiksha Gaur2,c 1Department of Physical & Chemical Sciences, Shri Sathya Sai University for Human Excellence, Navnihal, Okali Post, Kamalapur, District – Kalaburgai, Karnataka – 585313, India 2Coordination Chemistry Research Lab, Department of Chemistry, Govt.
To develop MOFs chemistry, credit goes to Omar Yaghi, professor of chemistry at the University of California, Berkeley, and co-workers.
When an X-ray hits the crystal face, it diffracts in a pattern that characterized its structure.
It includes X-ray absorption near-edge structure (XANES; also known as near-edge X-ray absorption fine structure – NEXAFS) and extended X-ray absorption fine structure (EXAFS) [49].
[29] B L Hayes, (2002) Microwave Synthesis: Chemistry at the Speed of Light (Matthews, NC: CEM Publ., 2002)

As research basic of influence of salts on concrete durability, effects of inorganic salts on pore structure of cement paste were studied in this paper, and possible implications of concrete property with pore structure was also analyzed.
Adding NaCl and Na2SO4 into cement paste raised coarse pores with size>1000nm at 3 days and 28days, which were harmful for the pore structure. 1.
Thus, the free water was removed from all the paste grains before pore structure testing.
The solution chemistry and early hydration of ordinary portland cement pastes with and without admixtures [J].
Materials Chemistry and Physics. 2004, 86: 298~306 [10] Patrice Rivard, Marc-Andre Berube, Gerard Ballivy, Jean-Pierre Ollivier.

The analysis of whey proteins structure by CD spectrum showed that secondary structure of whey proteins changed in various pH(Fig. 1).Absolute value of [θ]216(deg.cm2.dmol-1) and [θ]222(deg.cm2.dmol-1)of whey proteins increased significantly,added 0.1% EPS at pH7.0,showing that increases in α-helix contents and β-sheet contents were obvious.The phenomenon of whey proteins added 0.1% EPS at pH6.0~pH5.0 was similar to that at pH7.0,whilst secondary structure of whey proteins added 0.1% EPS changed weaker at pH6.0 than pH7.0 and pH5.0.
Croguennec.Influence of pH on the dry heat-induced denaturation /aggregation of whey proteins.Food Chemistry, 129 (2011), p. 110–116
Ren.Influence of pH on the structure and oleic acid binding ability of bovine a-Lactalbumin.Protein Journal,31(2012), p.564-572
Food Chemistry, 116(2009), p.104-113
Food Chemistry,131 (2012),p.956-963

Tetrabutylorthotitanate (Ti(OBu)4, Analytical Grade(AR), Tianjin Damao Chemistry Reagent corporation, China) as the titanium source was used to prepare the crystal TiO2 powder.
Ethyl alcohol (CH3CH2OH, AR, Tianjin Damao Chemistry Reagent Corporation, China) and acetic acid (CH3COOH, AR, Tianjin Damao Chemistry Reagent Corporation, China) were used as solvent and dispersing agent in the experiment, respectively.
The Rhodamine B (AR, Tianjin Damao Chemistry Reagent Corporation, China) was dissolved with distilled water as the simulated waste water .
D/max-rA (12 kW and Cu Kα radiation) to determine the crystal structure and crystallinity of the TiO2 particles.The crystallite size of TiO2 was estimated using the Scherrer equation (Demeestere et al., 2005) where k is equal to 0.89, the constants related to the degree of broadening, (0.15406) is the X-ray wavelength, is the half height width of XRD diffraction peak, is the Bragg angle.
Acknowledgements This work was financially supported by Liao Ning Petrolchemical Vocational and Technology College and the Department of chemistry.

"Glass chemistry: Problems, perspectives, and application (A review)."
Glass Physics and Chemistry 42.5 (2016): 429-439
Inorganic Chemistry Frontiers 5.12 (2018): 3015-3027
The Journal of Physical Chemistry B 117.5 (2013): 1444-1450
Journal of Solid State Chemistry 230 (2015): 56-60.

These results might be used to study the structure of spherical viruses and molecules.
The advances for solving the problem of minimizing f(x) can be found from Cam-bridge’s computational chemistry group [2].
The three-dimensional structures of the new best results are illustrated.
We set the cluster of 98 atoms as the base of the seed because the 98 atoms cluster has a tetrahedral structure.
Journal of Physical Chemistry A 102 p.6129-6137 (1998)

[2] Damodaran, S., Journal of Agricultural and Food Chemistry, 1988. 36(2): 262-269
[3] Thorarinsdottir, K.A., et al., Food Chemistry, 2002. 77(3): 377-385
[6] Hao, S., et al., Food chemistry, 2009. 115(1): 124-128
Park, Food Chemistry, 2003. 83(3): 409-416
Jiang, Journal of Agricultural and Food chemistry, 1989. 37(5): 1228-1231

With the addition of enzymes (Fig. 2 F, G, H), the pore structures were smoother than the control.
And the pore structures of the crumb with the addition of enzymes were smoother than the control.
Preston: Cereal Chemistry, Vol. 77 (2000), p. 70-76
[5] T.Maeda, T.Hashimoto, M.Minoda, S.Tamagawa and N.Morita: Cereal Chemistry Vol. 80 (2003), p. 722-727
A.Gerrard: Food Chemistry, Vol. 89 (2005), p. 325-332