PMID- 36073015 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220921 IS - 1944-8252 (Electronic) IS - 1944-8244 (Linking) VI - 14 IP - 37 DP - 2022 Sep 21 TI - Metal-Induced Aminosilica Rigidity Improves Highly Permeable Microporous Membranes via Different Types of Pendant Precursors. PG - 42692-42704 LID - 10.1021/acsami.2c11588 [doi] AB - In this study, nickel-doped aminosilica membranes containing pendant groups were prepared with 3-aminopropyltriethoxysilane (APTES), trimethoxy[3-(methylamino)propyl]silane (MAPTS), 3 N,N-dimethyl aminopropyltrimethoxysilane (DAPTMS), N-[3-(trimethoxysilylpropyl]ethylene diamine (TMSPED), and 1-[3-(trimethoxysilyl)propyl] urea (TMSPU). Differences in the structures of terminal amine ligands significantly contributed to the formation of a coordinated structural assembly. Ultraviolet-visible spectroscopy (UV-vis), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and N(2) adsorption isotherms revealed that short and rigid pendant amino groups successfully coordinated with nickel to produce subnanopores in the membranes, while an ion-exchange interaction was suggested for longer and sterically hindered aminosilica precursors. Moreover, the basicity of amine precursors affected the affinity of ligands for the development of a coordinated network. A pristine aminosilica membrane showed low levels of H(2) permeance that range from 0.1 to 0.5 x 10(-6) mol m(-2) s(-1) Pa(-1) with a H(2)/N(2) permeance ratio that ranges from 15 to 100. On the contrary, nickel coordination increased the H(2) permeance to 0.1-3.0 x 10(-6) mol m(-2) s(-1) Pa(-1) with H(2)/N(2) permeance ratios that range from 10 to 68, which indicates the formation of a microporous structure and enlargement of pore sizes. The strong level of coordination affinity between nickel ions and amine groups induced rearrangement of the flexible pendant chain into a more rigid structure. FAU - Anggarini, Ufafa AU - Anggarini U AUID- ORCID: 0000-0003-4969-0025 AD - Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan. AD - Department of Chemical Engineering, Universitas Internasional Semen Indonesia, Kompleks PT. Semen Indonesia (Persero) Tbk., Jln. Veteran, Gresik, 61122 East Java, Indonesia. FAU - Yu, Liang AU - Yu L AUID- ORCID: 0000-0002-9071-6277 AD - Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing 100081, China. FAU - Nagasawa, Hiroki AU - Nagasawa H AUID- ORCID: 0000-0001-7972-2425 AD - Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan. FAU - Kanezashi, Masakoto AU - Kanezashi M AUID- ORCID: 0000-0003-1435-9754 AD - Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan. FAU - Tsuru, Toshinori AU - Tsuru T AUID- ORCID: 0000-0002-8561-4962 AD - Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan. LA - eng PT - Journal Article DEP - 20220907 PL - United States TA - ACS Appl Mater Interfaces JT - ACS applied materials & interfaces JID - 101504991 SB - IM OTO - NOTNLM OT - aminosilica membrane OT - coordination OT - gas permeation OT - nickel doping OT - pendant precursors EDAT- 2022/09/09 06:00 MHDA- 2022/09/09 06:01 CRDT- 2022/09/08 02:59 PHST- 2022/09/09 06:00 [pubmed] PHST- 2022/09/09 06:01 [medline] PHST- 2022/09/08 02:59 [entrez] AID - 10.1021/acsami.2c11588 [doi] PST - ppublish SO - ACS Appl Mater Interfaces. 2022 Sep 21;14(37):42692-42704. doi: 10.1021/acsami.2c11588. Epub 2022 Sep 7.