An atomic force microscopy study of coal nanopore structure

详细信息    查看全文

• 作者：SuPing Yao (1)
  Kun Jiao (1)
  Ke Zhang (1)
  WenXuan Hu (1)
  Hai Ding (1)
  MiaoChun Li (1)
  WenMing Pei (1)
  
• 关键词：coal nanopore ; atomic force microscopy ; coal ; bed methane ; pore size distribution ; porosity
• 刊名：Chinese Science Bulletin
• 出版年：2011
• 出版时间：September 2011
• 年：2011
• 卷：56
• 期：25
• 页码：2706-2712
• 全文大小：836KB
• 参考文献：1. Clarkson C R, Bustin R M. The effect of pore structure and gas pressure upon the transport properties of coal: A laboratory and modeling study. 1. Isotherms and pore volume distributions. Fuel, 1999, 78: 1333鈥?344 CrossRef
  2. Gilman A, Beckie R. Flow of coal-bed methane to a gallery. Transport Porous Med, 2000, 41: 1鈥?6 CrossRef
  3. Karacan C O, Okandan E. Adsorption and gas transport in coal microstructure: Investigation and evaluation by quantitative X-ray CT imaging. Fuel, 2001, 80: 509鈥?20 CrossRef
  4. Mastalerz M, Drobniak A, Strapoc D, et al. Variations in pore characteristics in high volatile bituminous coals: Implications for coalbed gas content. Int J Coal Geol, 2008, 76: 205鈥?16 CrossRef
  5. Radovic L R, Menon V C, Le贸ny Le贸n C A, et al. On the porous structure of coals: Evidence for an interconnected but constricted micropore system and implications for coalbed methane recovery. Adsorption, 1997, 3: 221鈥?32 CrossRef
  6. Radlinski A P, Mastalerz M, Hinde A L, et al. Application of SAXS and SANS in evaluation of porosity, pore size distribution and surface area of coal. Int J Coal Geol, 2004, 59: 245鈥?71 CrossRef
  7. Zhang S, Tang S, Tang D, et al. The characteristics of coal reservoir pores and coal facies in Liulin district, Hedong coal field of China. Int J Coal Geol, 2010, 81: 117鈥?27 CrossRef
  8. Xodot B B. Coal and Gas Outburst. Beijing: China Industry Press, 1966. 27鈥?0
  9. Gan H, Walker P L, Nandi S P. Nature of porosity in American coals. Fuel, 1972, 51: 272鈥?77 CrossRef
  10. Zhang H. Genetical type of proes in coal reservoir and its research significance (in Chinese). J Coal Sci Eng, 2001, 26: 40鈥?4
  11. Veeco Instruments Inc. Nanocope Software 6.13 User Guide, 2002
  12. Zhu C F, Wang C. Progress in Applications of Scanning Probe Microscopy (in Chinese). Beijing: Chemical Industry Press, 2007. 2鈥?
  13. Benitez J J, Matas A J, Heredia A. Molecular characterization of the plant biopolyester cutin by AFM and spectroscopic techniques. J Struct Biol, 2004, 147: 179鈥?84 CrossRef
  14. Ganning A P, Giardin T P, Faulds C B, et al. Surfactant-mediated solubilisation of amylose and visualization by atomic force microscopy. Carbohyd Polym, 2003, 51: 177鈥?82 CrossRef
  15. Baker A A, Helbert W, Sugiyama J, et al. New insight into Cellulose structure by atomic force microscopy shows the / I _伪 crystal phase at near-atomic resolution. Biophys J, 2000, 79: 1139鈥?145 CrossRef
  16. Can M F, 脟谋nar M, Benli B, et al. Determining the fiber size of nano structured sepiolite using atomic force microscopy (AFM). Appl Clay Sci, 2010, 47: 217鈥?22 CrossRef
  17. Wang Z, Jiao N. Tung S, et al. Research on the atomic force microscopy-based fabrication of nanochannels on silicon oxide surfaces. Chinese Sci Bull, 2010, 55: 3466鈥?471 CrossRef
  18. Yumura M, Ohshima S, Kuriki S, et al. Atomic force microscopy observations of coals. In: Proceedings of International Conference on Coal Science 1. Tsukuba: NIMC, 1993. 394鈥?97
  19. Lawrie G A, Gentle I R, Fong C, et al. Atomic force microscopy studies of Bowen basin coal macerals. Fuel, 1997, 76: 1519鈥?526 CrossRef
  20. Cohen A D, Bailey A M, Myrick M L, et al. Applications of atomic force microscopy to study of artificially coalified peats. Soc Org Petrol, 1998, 15: 23鈥?7
  21. Bruening F A, Cohen A D. Measuring surface properties and oxidation of coal macerals using atomic force microscope. Int J Coal Geol, 2005, 63: 195鈥?04 CrossRef
  22. Golubev Y A, Kovaleva O V, Yushkin N P. Observations and morphological analysis of supermolecular structure of natural bitumens by atomic force microscopy. Fuel, 2008, 87: 32鈥?8 CrossRef
  23. Yang Q, Pan Z G, Tang D Z, et al. STM and AFM study of coal structure (in Chinese). Chinese Sci Bull, 1994, 39: 633鈥?35
  24. Chang Y M, Yang H G, Ma T W, et al. Study of the coal microstructure based on AFM (in Chinese). Modern Sci Ins, 2006, 6: 71鈥?2
  25. Liu J, Jiang X, Huang X, et al. Morphological characterization of super fine pulverized coal particle. Part2. AFM investigation of single coal particle. Fuel, 2010, 89: 3884鈥?891 CrossRef
  26. Junno T, Deppert K, Montelius L, et al. Controlled manipulation of nanoparticles with an atomic force microscope. Appl Phys Lett, 1995, 66: 3627鈥?629 CrossRef
  27. Hao Q. On morphogical character and origin of micropores in coal (in Chinese). J China Coal Soc, 1987, 4: 51鈥?7
  28. Loucks R G, Reed R M, Ruppel S C, et al. Morphology, genesis, and distribution of nanometre-scale pores in siliceous mudstones of the Mississippian Barnett Shale. J Sediment Res, 2009, 79: 848鈥?61 CrossRef
  29. Zhang X M, Zhang S A, Zhong L W. Coal Bed Methane in China (in Chinese). Xi鈥檃n: Shanxi Science and Technology Press, 1991. 82鈥?4
  30. Su X B, Zhang L P, Lin X Y. Influence of coal ranks on coal adsorption capacity (in Chinese). Nat Gas Ind, 2005, 25: 19鈥?1
  31. Zhao X L, Tang D Z, Xu H, et al. Effect of coal metamorphic process on pore system of coal reservoirs (in Chinese). J Chin Coal Soc, 2010, 35: 1506鈥?511
  32. Wu J, Jin K L, Tong Y D, et al. Theory of coal pores and its application in evaluation of gas outburst proneness and gas drainage (in Chinese). J Chin Coal Soc, 1991, 16: 86鈥?5
  33. Qin Y. Micropetrology and Structural Evolution of High-rank Coal in China (in Chinese). Xuzhou: China University of Mining and Technology Press, 1995. 48鈥?34
  34. Chalmers G R L, Bustin R M. The organic matter distribution and methane capacity of the lower Cretaceous strata of northeastern British Columbia, Canada. Int J Coal Geol, 2007, 70: 223鈥?39 CrossRef
  35. Jarvie D M, Hill R J, Ruble T E, et al. Unconventional shale-gas systems: the Mississippian Barnett Shale of north central Texas as one model for thermogenic shale-gas assessment. AAPG Bull, 2007, 91: 475鈥?99 CrossRef
  36. Hover V C, Peacor D R, Walter L M. Relationship between organic matter and authigenic illite/smectite in Devonian Black Shales, Michigan and Illinois Basins, USA. In: Crossey L J, Loucks R G, Totten M W, eds. Siliciclastic Diagenesis and Fluid Flow: Concepts and Applications. Tusal: SEPM, 1996. 73鈥?3 CrossRef
  37. Hirono T, Lin W, Nakashima S. Pore space visualization of rocks using an atomic force microscope. Int J Rock M Sci, 2006, 43: 317鈥?20 CrossRef
  38. Stoeckli F, Hugi-Cleary D, Centenob T A. The Characterization of solids by adsorption and immersion techniques and by AFM/STM. J Eur Ceram Soc, 1998, 18: 1177鈥?185 CrossRef
  
• 作者单位：SuPing Yao (1)
  Kun Jiao (1)
  Ke Zhang (1)
  WenXuan Hu (1)
  Hai Ding (1)
  MiaoChun Li (1)
  WenMing Pei (1)
  
  1. State Key Laboratory for Mineral Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing, 210093, China
  
• ISSN：1861-9541

文摘

Coal nanopore structure is an important factor in understanding the storage and migration of absorbed gas in coal. A new method for studying coal nanopore structures is proposed. This idea is based on the nano-level resolution of atomic force microscopy, which can be employed to observe the structural features of coal nanopores clearly, conduct quantitative three-dimensional measurements and obtain structural parameters. Analysis results show that coal nanopores are mainly metamorphic pores and intermolecular pores. The metamorphic pores are commonly rounded and elliptical, increasing quantitatively with the coalification degree. The forms of intermolecular pores change markedly. The average pore size of low-rank coal is bigger than high-rank coal, and the number of intermolecular pores decreases as the coal rank increases. Section analysis effectively characterizes the coal pore microstructure, bearing analysis is a vital approach to measure microporosity, and grain analysis can be employed to study the pore size distribution. Atomic force microscopy is a tool for the in-depth research of coal pore microstructure and the coal-bed methane adsorption mechanism.