Patent ID: 11896935
Assignee: UCHICAGO ARGONNE, LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A method for forming a membrane with inorganic features comprising:
(a) exposing a polymer membrane, which comprises a polyvinylidene fluoride polymer substrate, with a first precursor, comprising trimethyl aluminum (TMA), wherein exposing the first precursor comprises exposing the TMA in at least five exposure pulses for at least 5 continuous minutes of dwell time with a first precursor partial pressure of 1 torr to form by a first reaction a first layer within a bulk of the polymer substrate;
(b) purging excess first precursor and first reaction by-product;
(c) reacting the first layer with a second precursor within the bulk of the polymer substrate by a second reaction; and
(d) purging excess second precursor and second reaction by-product,
wherein steps (a) to (d) constitute one cycle and steps (a) to (d) are repeated 0 to 4 times, and
forming the membrane with inorganic features comprising an inorganic shell within the polymer substrate.