Adsorbents with stepped isotherms for gas storage applications
AssigneeThe Regents of the University of California
InventorsJeffrey R. Long, Jarad A. Mason, Mercedes K. Taylor, Julia Oktawiec
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Abstract
The disclosure provides for adsorbents with stepped isotherms for gas storage applications.
Claims20
An adsorbent having a stepped isotherm comprising a flexible metal-organic framework which has repeating cores comprising the formula M-L-M, wherein L is a linking moiety comprising a structure of Formula I:
- wherein,
- X1-X6 are each independently a C or a N;
- R1-R2 and R7-R8 are each independently selected from the group consisting of H, D, optionally substituted C1-C3 alkyl, optionally substituted C1-C3 alkenyl, halo, hydroxyl, aldehyde, carboxyl, amine, nitrile, azide, and nitro;
- R3-R6 are each independently selected from the group consisting of H, D, FG, optionally substituted (C1-C12)alkyl, optionally substituted hetero-(C1-C12)alkyl, optionally substituted (C2-C12)alkenyl, optionally substituted hetero-(C1-C12)alkenyl, optionally substituted (C2-C12)alkynyl, optionally substituted hetero-(C2-C12)alkynyl, optionally substituted cycloalkyl, optionally substituted cycloalkenyl, optionally substituted aryl, optionally substituted heterocycle, optionally substituted mixed ring system, —C(R11)3, —CH(R11)2, —CH2R11, —C(R12)3, —CH(R12)2, —CH2R12, —OC(R11)3, OCH(R11)2, —OCH2R11, —OC(R12)3, —OCH(R12)2, OCH2R12, and adjacent R groups can be linked together to form an optionally substituted ring;
- R11 is selected from the group consisting of FG, optionally substituted (C1-C12)alkyl, optionally substituted hetero-(C1-C12)alkyl, optionally substituted (C1-C12)alkenyl, optionally substituted hetero-(C1-C12)alkenyl, optionally substituted (C1-C12)alkynyl, optionally substituted hetero-(C1-C12)alkynyl;
- and
- R12 is selected from the group consisting of cycloalkyl, aryl and heterocycle;
- and wherein
- M is selected from the group consisting of Be2+, Mg2+, Ca2+, Sr2+, Ba2+, Sc2+, Y2+, Ti2+, Zr2+, V2+, Nb2+, Ta2+, Cr2+, Mo2+, W2+, Mn2+, Re2+, Fe2+, Ru2+, Os2+, Rh2+, Ir2+, Ni2+, Pd2+, Pt2+, Cu2+, Ag2+, Au2+, Hg2+, Al2, In2+, Si2+, Ge2+, Sn2+, Pb2+, As2+, Te2+, La2+, Ce2+, Pr2+, Nd2+, Sm2+, Eu2+, Gd2+, Tb2+, Db2+, Tm2+, Yb2+, La2+, and combinations thereof, including any complexes which contain the metals or metal ions, as well as any corresponding metal salt counter-anions;
- and wherein
- tetrahedrally or pseudo-tetrahedrally M is bridged by μ2-pyrazolate units of L.
A gas storage device comprising an adsorbent having a stepped isotherm comprising a flexible metal-organic framework which has repeating cores comprising the formula M-L-M, wherein L is a linking moiety comprising a structure of Formula I:
- wherein,
- X1-X6 are each independently a C or a N;
- R1-R2 and R7-R8 are each independently selected from the group consisting of H, D, optionally substituted C1-C3 alkyl, optionally substituted C1-C3 alkenyl, halo, hydroxyl, aldehyde, carboxyl, amine, nitrile, azide, and nitro;
- R3-R6 are each independently selected from the group consisting of H, D, FG, optionally substituted (C1-C12)alkyl, optionally substituted hetero-(C1-C12)alkyl, optionally substituted (C2-C12)alkenyl, optionally substituted hetero-(C1-C12)alkenyl, optionally substituted (C2-C12)alkynyl, optionally substituted hetero-(C2-C12)alkynyl, optionally substituted cycloalkyl, optionally substituted cycloalkenyl, optionally substituted aryl, optionally substituted heterocycle, optionally substituted mixed ring system, —C(R11)3, —CH(R11)2, —CH2R11, —C(R12)3, —CH(R12)2, —CH2R12, —OC(R11)3, OCH(R11)2, —OCH2R11, —OC(R12)3, —OCH(R12)2, OCH2R12, and adjacent R groups can be linked together to form an optionally substituted ring;
- R11 is selected from the group consisting of FG, optionally substituted (C1-C12)alkyl, optionally substituted hetero-(C1-C12)alkyl, optionally substituted (C1-C12)alkenyl, optionally substituted hetero-(C1-C12)alkenyl, optionally substituted (C1-C12)alkynyl, optionally substituted hetero-(C1-C12)alkynyl;
- and
- R12 is selected from the group consisting of cycloalkyl, aryl and heterocycle;
- and wherein
- M is selected from the group consisting of Be2+, Mg2+, Ca2+, Sr2+, Ba2+, Sc2+, Y2+, Co2+, Ti2+, Zr2+, V2+, Nb2+, Ta2+, Cr2+, Mo2+, W2+, Mn2+, Re2+, Fe2+, Ru2+, Os2+, Rh2+, Ir2+, Ni2+, Pd2+, Pt2+, Cu2+, Ag2+, Au2+, Hg2+, Al2, In2+, Si2+, Ge2+, Sn2+, Pb2+, As2+, Te2+, La2+, Ce2+, Pr2+, Nd2+, Sm2+, Eu2+, Gd2+, Tb2+, Db2+, Tm2+, Yb2+, La2+, and combinations thereof, including any complexes which contain the metals or metal ions, as well as any corresponding metal salt counter-anions;
- and wherein
- tetrahedrally or pseudo-tetrahedrally M is bridged by μ2-pyrazolate units of L.
A method to reversibly store one or more gases comprising contacting the one or more gases with an adsorbent having a stepped isotherm comprising a flexible metal-organic framework which has repeating cores comprising the formula M-L-M, wherein L is a linking moiety comprising a structure of Formula I:
- wherein,
- X1-X6 are each independently a C or a N;
- R1-R2 and R7-R8 are each independently selected from the group consisting of H, D, optionally substituted C1-C3 alkyl, optionally substituted C1-C3 alkenyl, halo, hydroxyl, aldehyde, carboxyl, amine, nitrile, azide, and nitro;
- R3-R6 are each independently selected from the group consisting of H, D, FG, optionally substituted (C1-C12)alkyl, optionally substituted hetero-(C1-C12)alkyl, optionally substituted (C2-C12)alkenyl, optionally substituted hetero-(C1-C12)alkenyl, optionally substituted (C2-C12)alkynyl, optionally substituted hetero-(C2-C12)alkynyl, optionally substituted cycloalkyl, optionally substituted cycloalkenyl, optionally substituted aryl, optionally substituted heterocycle, optionally substituted mixed ring system, —C(R11)3, —CH(R11)2, —CH2R11, —C(R12)3, —CH(R12)2, —CH2R12, —OC(R11)3, OCH(R11)2, —OCH2R11, —OC(R12)3, —OCH(R12)2, OCH2R12, and adjacent R groups can be linked together to form an optionally substituted ring;
- R11 is selected from the group consisting of FG, optionally substituted (C1-C12)alkyl, optionally substituted hetero-(C1-C12)alkyl, optionally substituted (C1-C12)alkenyl, optionally substituted hetero-(C1-C12)alkenyl, optionally substituted (C1-C12)alkynyl, optionally substituted hetero-(C1-C12)alkynyl;
- and
- R12 is selected from the group consisting of cycloalkyl, aryl and heterocycle;
- and wherein
- M is selected from the group consisting of Be2+, Mg2+, Ca2+, Sr2+, Ba2+, Sc2+, Y2+, Co2+, Ti2+, Zr2+, V2+, Nb2+, Ta2+, Cr2+, Mo2+, W2+, Mn2+, Re2+, Fe2+, Ru2+, Os2+, Rh2+, Ir2+, Ni2+, Pd2+, Pt2+, Cu2+, Ag2+, Au2+, Hg2+, Al2, In2+, Si2+, Ge2+, Sn2+, Pb2+, As2+, Te2+, La2+, Ce2+, Pr2+, Nd2+, Sm2+, Eu2+, Gd2+, Tb2+, Db2+, Tm2+, Yb2+, La2+, and combinations thereof, including any complexes which contain the metals or metal ions, as well as any corresponding metal salt counter-anions;
- and wherein
- tetrahedrally or pseudo-tetrahedrally M is bridged by μ2-pyrazolate units of L.
Dependencies are inferred from the claim text.