Download PDF - Pan Stanford Publishing
Download PDF - Pan Stanford Publishing
Download PDF - Pan Stanford Publishing
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Contents<br />
vii<br />
4.3.3 Shape-Dependent Thermodynamic<br />
Modelling of Nanocrystals 123<br />
4.4 Modelling of Surface Energy for Polar and<br />
Non-Polar Surfaces 124<br />
4.4.1 Modelling Pyrite FeS 2 Surfaces 126<br />
4.5 Modelling of FeS 2 Nanocrystals 130<br />
4.5.1 Shape and Thermodynamic Stability of<br />
FeS 2 Nanocrystals 130<br />
4.5.2 Formation of FeS 2 Nanocrystals in<br />
Sulfur-Rich Conditions 133<br />
4.6 Conclusion 135<br />
5. Noble Metal Nanoparticles in Ore Systems 141<br />
Robert Hough, Martin Reich, and Ryan Noble<br />
5.1 Introduction 141<br />
5.2 Imaging Nanoparticles in Natural Samples 143<br />
5.3 Gold Nanoparticles in Hydrothermal Sulphides 146<br />
5.3.1 “Invisible” Gold in Arsenian Pyrite 147<br />
5.3.2 The Fate of “Invisible” Gold at High<br />
Temperatures 149<br />
5.4 Nanoparticulate Gold and Copper in Supergene<br />
Deposits 151<br />
5.4.1 Gold in Supergene Deposits 152<br />
5.4.1.1 Morphology 152<br />
5.4.1.2 Influence of bacteria 156<br />
5.4.2 Copper Deposits 157<br />
5.4.3 Other Metals 157<br />
5.5 Colloidal Transport 157<br />
5.6 Future Directions 161<br />
6. Diamondoids 169<br />
C. Bostedt, L. Landt, T. Möller, J.E. Dahl, and R.M.K. Carlson<br />
6.1 Introduction and Structure 169<br />
6.2 Diamondoids in the Geosphere 174<br />
6.3 Electronic Structure and Optical Properties 179<br />
6.4 Functionalized Diamondoids 186
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