Gas sensors based upon metal carbon complexes
A sensor can include a conductive region in electrical communication with at least two electrodes, the conductive region including a conductive material and an alkene-interacting metal complex.
1. A sensor comprising:
a conductive region including a carbon nanotube in electrical communication with at least two electrodes, the conductive region including a conductive material and an alkene-interacting metal complex, wherein the alkene-interacting metal complex includes a metal macrocycle complex including a non-coordinating anion capable of forming a stable complex by reaction with an alkene and reacts with the alkene to produce a chemiresistive response in the conductive region.
2. The sensor of claim 1 , wherein the conductive material includes graphite.
3. The sensor of claim 1 , wherein the conductive material includes graphene.
4. The sensor of claim 1 , wherein the conductive material is the alkene-interacting metal complex.
5. The sensor of claim 1 , wherein the conductive material includes a conductive polymer.
6. The sensor of claim 1 , wherein the conductive material includes a metal oxide.
7. The sensor of claim 1 , wherein the conductive material includes an inorganic semiconductor.
8. The sensor of claim 1 , wherein the macrocycle complex includes a phthalocyanine.
9. The sensor of claim 1 , wherein the macrocycle complex includes a porphyrin.
10. The sensor of claim 1 , wherein the metal of the macrocycle complex includes Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pd, Cu, Ag, Au, or Hg.
11. The sensor of claim 1 , wherein the metal of the macrocycle complex includes a cobalt ion.
12. The sensor of claim 1 , wherein the metal of the macrocycle complex includes an iridium ion.
13. The sensor of claim 1 , wherein the metal macrocycle complex includes a 5, 10, 15, 20-tetraphenylporphyrinato cobalt.
14. The sensor of claim 1 , wherein the metal macrocycle complex includes a 5, 10, 15, 20-tetrakis(pentafluorophenyl)porphyrinato cobalt.
15. The sensor of claim 1 , wherein the anion includes Cl − , ClO 4 − , BF 4 − , RSO 3 − where R is CF 3 , CH 3 , an aryl, an alkyl, or an oxygen bound arylor alkyl group, PF 6 − , or BAr 4 − , where Ar is an aromatic group.
16. The sensor of claim 1 , wherein the alkene-interacting metal complex includes a palladium ion.
17. The sensor of claim 1 , wherein the alkene-interacting metal complex includes palladium(II) trifluoroacetate or palladium(II) acetate.
18. The sensor of claim 1 , wherein the alkene-interacting metal complex further reacts to regenerate the metal complex that reacts with an additional alkene.