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Title: Critical Knowledge Gaps in Mass Transport through Single-Digit Nanopores: A Review and Perspective

Journal Article · · Journal of Physical Chemistry. C
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  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Univ. of Illinois at Urbana-Champaign, IL (United States)
  3. Univ. of Maryland, College Park, MD (United States)
  4. Yale Univ., New Haven, CT (United States)
  5. Stanford Univ., CA (United States)
  6. Univ. of Florida, Gainesville, FL (United States)
  7. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  8. Univ. of California, Irvine, CA (United States)

Not all nanopores are created equal. By definition, nanopores have characteristic diameters or conduit widths between ~1 and 100 nm. However, the narrowest of such pores, perhaps best called Single Digit Nanopores (SDNs) and defined as those with regular diameters less than 10 nm, have only recently been accessible experimentally for precision transport measurements. This Review summarizes recent experiments on pores in this size range that yield surprising results, pointing toward extraordinary transport efficiencies and selectivities for SDN systems. These studies have identified critical gaps in our understanding of nanoscale hydrodynamics, molecular sieving, fluidic structure, and thermodynamics. These knowledge gaps are, in turn, an opportunity to discover and understand fundamentally new mechanisms of molecular and ionic transport at the nanometer scale that may inspire a host of new technologies, from novel membranes for separations and water purification to new gas-permeable materials and energy storage devices. Furthermore, we highlight seven critical knowledge gaps in the study of SDNs and identify the need for new approaches to address these topics.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation Graduate Research Fellowship
Grant/Contract Number:
AC52-07NA27344; SC0019112; 1122374
OSTI ID:
1867120
Report Number(s):
LLNL-JRNL-814731; 1023349
Journal Information:
Journal of Physical Chemistry. C, Vol. 123, Issue 35; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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