TY - JOUR
T1 - High density heterogenisation of molecular electrocatalysts in a rigid intrinsically microporous polymer host
AU - Rong, Y.
AU - Malpass-Evans, R.
AU - Carta, M.
AU - McKeown, N.B.
AU - Attard, G.A.
AU - Marken, F.
PY - 2014/9
Y1 - 2014/9
N2 - A water-insoluble Polymer with Intrinsic Microporosity (or PIM, here for the particular case of the Tröger Base system PIM-EA-TB, BET area ca. 103 m2 -1g) is demonstrated to act as a rigid host environment for highly water-insoluble molecular catalysts, here tetraphenylporphyrinato-iron (FeTPP), surrounded by aqueous solution-filled micropores. A PIM-EA-TB film containing catalyst is deposited onto the electrode and immersed for voltammetry (i) with 4-(3-phenyl-propyl)-pyridine to give an organogel, or (ii) bare directly into aqueous solution. The porous host allows processes to be optimised as a function of solution phase, composition, and catalyst loading. Effective electron transfer as well as effective electrocatalysis is reported for aqueous oxygen and peroxide reduction. Given the use of completely water-insoluble catalyst systems, the methodology offers potential for application with a wide range of hitherto unexplored molecular electrocatalysts and catalyst combinations in aqueous media.
AB - A water-insoluble Polymer with Intrinsic Microporosity (or PIM, here for the particular case of the Tröger Base system PIM-EA-TB, BET area ca. 103 m2 -1g) is demonstrated to act as a rigid host environment for highly water-insoluble molecular catalysts, here tetraphenylporphyrinato-iron (FeTPP), surrounded by aqueous solution-filled micropores. A PIM-EA-TB film containing catalyst is deposited onto the electrode and immersed for voltammetry (i) with 4-(3-phenyl-propyl)-pyridine to give an organogel, or (ii) bare directly into aqueous solution. The porous host allows processes to be optimised as a function of solution phase, composition, and catalyst loading. Effective electron transfer as well as effective electrocatalysis is reported for aqueous oxygen and peroxide reduction. Given the use of completely water-insoluble catalyst systems, the methodology offers potential for application with a wide range of hitherto unexplored molecular electrocatalysts and catalyst combinations in aqueous media.
UR - http://www.scopus.com/inward/record.url?scp=84903201224&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1016/j.elecom.2014.06.005
U2 - 10.1016/j.elecom.2014.06.005
DO - 10.1016/j.elecom.2014.06.005
M3 - Article
AN - SCOPUS:84903201224
SN - 1388-2481
VL - 46
SP - 26
EP - 29
JO - Electrochemistry Communications
JF - Electrochemistry Communications
ER -