Expertise in the Physical Characterisation of Materials
01763 262333
MCA Services Unit 1A Long Barn, North End, Meldreth, Cambridgeshire SG8 6NT UK
01763 262333
© MCA Services
Micropore Analysis by Gas Adsorption Pore Size Distribution and Pore Volume and Area: Pores < 2nm diameter. Micropores   are   those   smaller   than   2nm   diameter   and   present   in   a   wide   range   of   materials,   for   example:   zeolites,   MOFs,   ZIFs   and activated   carbons   and   charcoals.   They   are   fundamentally   important   to   the   functionality   and   performance   of   many   applications:   battery materials,   catalysts,   adsorbents,   sequestration   and   filter   materials   are   just   a   few   examples.   Micropore   volume   and   area   typically   affect performance   capacity   and   micropore   size   affects   functionality   and   efficiency.   A   certain   micropore   size   is   often   required   for   a   given application   to   be   efficient:   consequences   of   micropore   being   too   large   or   small   are   a   loss   of   functionality   and   pore   clogging   /   blocking.   A full understanding of micro-porous character in terms of volume, area and size distribution is, therefore, required. At   MCA   Services   we   offer   a   range   of   micropore   analysis   options   using   the   very   latest,   state-of-the-art,      Micromeritics   3Flex   instrument. Crucially,   dedicated   micropore   analysis   provides   a   full   set   of   pore   size   distribution   data   as   well   as   pore   volume   and   pore   area   data.   These are   derived   from   specialised   data   reduction   methods   and   models,   such   as   DFT   (Density   Functional   Theory),   NL-DFT   (Non-linear   Density Functional   Theory)   and   Horvath-Kawazoe.   These   provide   considerably   more   information   (e.g.   pore   size   and   pore   size   distribution)   than historical statistical methods such as t-plots, alpha-S plots and the Dubinin models, although these can also be applied if required. Key Information: Micropore size values and micropore size distribution Micropore volume measurement Micropore area value and distribution Choice of micropore only or full isotherm measurement Micropore & mesopore characterisation from full isotherms Data reduction by DFT (Density Functional Theory) Data reduction by NL-DFT (Non-linear Density Functional Theory) BET surface area included in reports Choice of adsorptive: N2, Ar, CO2, H2, O2 or Xe Other adsorbates available on request Comprehensive degassing options Hydrogen adsorption & pressure composition plots With   many   adsorptives,   analysis   can   be   confined   to   the   micropore   region   or   extended   to   measure   the   full   adsorption   and   desorption isotherms.   This   extension   provides   micropore   and   mesopore   size,   area   and   volume   distributions   in   a   single   analysis   and   set   of   reports. The desorption isotherm can provide information on the pore shape present within the mesopore range. The   Micromeritics   3Flex   is   an   extremely   powerful   instrument   with   cutting   edge technology    and    software.    A    wealth    of    information    can    be    gained    from    the comprehensive   data   reduction   software   and   with   our   decades   of   experience   we are   always   happy   to   determine   the   best   reporting   options   and   pore   models   for every   sample.   The   combination   of   expertise   and   instrumentation   ensures   that you always receive the most complete and appropriate data possible.
combined CO2 nitrogen isotherm for micropore characterisation Argon adsorption isotherm for micropore distribution by DFT
Expertise in the Physical Characterisation of Materials
MCA Services Unit 1A Long Barn, North End, Meldreth, Cambridgeshire SG8 6NT UK
01763 262333
© MCA Services
Micropore Analysis by Gas Adsorption Pore Size Distribution and Pore Volume and Area: Pores < 2nm diameter. Micropores   are   those   smaller   than   2nm   diameter   and   present   in   a wide    range    of    materials,    for    example:    zeolites,    MOFs,    ZIFs    and activated   carbons   and   charcoals.   They   are   fundamentally   important   to the    functionality    and    performance    of    many    applications:    battery materials,   catalysts,   adsorbents,   sequestration   and   filter   materials   are just    a    few    examples.    Micropore    volume    and    area    typically    affect performance    capacity    and    micropore    size    affects    functionality    and efficiency.    A    certain    micropore    size    is    often    required    for    a    given application   to   be   efficient:   consequences   of   micropore   being   too   large or   small   are   a   loss   of   functionality   and   pore   clogging   /   blocking.   A   full understanding   of   micro-porous   character   in   terms   of   volume,   area   and size distribution is, therefore, required. At   MCA   Services   we   offer   a   range   of   micropore   analysis   options   using the    very    latest,    state-of-the-art,        Micromeritics    3Flex    instrument. Crucially,   dedicated   micropore   analysis   provides   a   full   set   of   pore   size distribution   data   as   well   as   pore   volume   and   pore   area   data.   These   are derived   from   specialised   data   reduction   methods   and   models,   such   as DFT   (Density   Functional   Theory),   NL-DFT   (Non-linear   Density   Functional Theory)    and    Horvath-Kawazoe.    These    provide    considerably    more information   (e.g.   pore   size   and   pore   size   distribution)   than   historical statistical    methods    such    as    t-plots,    alpha-S    plots    and    the    Dubinin models, al though these can also be applied if required. Key Information: Micropore size values and micropore size distribution Micropore volume measurement Micropore area value and distribution Choice of micropore only or full isotherm measurement Micropore & mesopore characterisation from full isotherms Data reduction by DFT (Density Functional Theory) Data reduction by NL-DFT (Non-linear Density Functional Theory) BET surface area included in reports Choice of adsorptive: N2, Ar, CO2, H2, O2 or Xe Other adsorbates available on request Comprehensive degassing options Hydrogen adsorption & pressure composition plots With    many    adsorptives,    analysis    can    be    confined    to    the    micropore region    or    extended    to    measure    the    full    adsorption    and    desorption isotherms.   This   extension   provides   micropore   and   mesopore   size,   area and   volume   distributions   in   a   single   analysis   and   set   of   reports.   The desorption    isotherm    can    provide    information    on    the    pore    shape present within the mesopore range. The    Micromeritics    3Flex    is    an    extremely    powerful    instrument    with cutting   edge   technology   and   software.   A   wealth   of   information   can   be gained   from   the   comprehensive   data   reduction   software   and   with   our decades   of   experience   we   are   always   happy   to   determine   the   best reporting   options   and   pore   models   for   every   sample.   The   combination of   expertise   and   instrumentation   ensures   that   you   always   receive   the most complete a nd appropriate data possible.
01763262333
DFT micropore distribution from combined CO2 and N2 isotherms micropore distribution from argon adsorption isotherm