Surface-Modified Phthalocyanine-Based Two-Dimensional Conjugated Metal–Organic Framework Films for Polarity-Selective Chemiresistive Sensing

Mingchao Wang, Zhe Zhang, Haixia Zhong, Xing Huang, Wei Li, Mike Hambsch, Panpan Zhang, Zhiyong Wang, Petko St. Petkov, Thomas Heine, Stefan C.B. Mannsfeld, Xinliang Feng, Renhao Dong

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

2D conjugated metal–organic frameworks (2D c-MOFs) are emerging as electroactive materials for chemiresistive sensors, but selective sensing with fast response/recovery is a challenge. Phthalocyanine-based Ni2[MPc(NH)8] 2D c-MOF films are presented as active layers for polarity-selective chemiresisitors toward water and volatile organic compounds (VOCs). Surface-hydrophobic modification by grafting aliphatic alkyl chains on 2D c-MOF films decreases diffused analytes into the MOF backbone, resulting in a considerably accelerated recovery progress (from ca. 50 to ca. 10 s) during humidity sensing. Toward VOCs, the sensors deliver a polarity-selective response among alcohols but no signal for low-polarity aprotic hydrocarbons. The octadecyltrimethoxysilane-modified Ni2[MPc(NH)8] based sensor displays high-performance methanol sensing with fast response (36 s)/recovery (13 s) and a detection limit as low as 10 ppm, surpassing reported room-temperature chemiresistors.

Original languageEnglish
Pages (from-to)18666-18672
Number of pages7
JournalAngewandte Chemie - International Edition
Volume60
Issue number34
DOIs
Publication statusPublished - 2021 Aug 16

Bibliographical note

Funding Information:
We thank financial support from ERC Starting Grant (FC2DMOF, No. 852909), ERC Consolidator Grant (T2DCP), Coordination Networks: Building Blocks for Functional Systems (SPP 1928, COORNETs), EU Graphene Flagship (GrapheneCore3, No. 881603), DFG project (CRC 1415, No. 417590517), H2020-MSCA-ITN (ULTIMATE, No. 813036), H2020-FETOPEN (PROGENY, 899205), the German Science Council, Center for Advancing Electronics Dresden (EXC1056), and Dresden Center for Intelligent Materials (DCIM) by the Free State of Saxony and TU Dresden. We acknowledge Elettra Sincrotrone Trieste for providing access to its synchrotron radiation facilities and we thank Luisa Barba for assistance in using beamline XRD1. We appreciate the Dresden Center for Nanoanalysis (DCN) for the use of facility, and Dr. Mao Wang, Dr. Zhongquan Liao, as well as Dr. Tilo Lübken for variable-temperature conductivity, HR-TEM, and NMR measurement, respectively. We thank Dr. Yu Zhang, Dr. Tao Zhang, and Huanhuan Shi for helpful discussions. Open access funding enabled and organized by Projekt DEAL.

Funding Information:
We thank financial support from ERC Starting Grant (FC2DMOF, No. 852909), ERC Consolidator Grant (T2DCP), Coordination Networks: Building Blocks for Functional Systems (SPP 1928, COORNETs), EU Graphene Flagship (GrapheneCore3, No. 881603), DFG project (CRC 1415, No. 417590517), H2020‐MSCA‐ITN (ULTIMATE, No. 813036), H2020‐FETOPEN (PROGENY, 899205), the German Science Council, Center for Advancing Electronics Dresden (EXC1056), and Dresden Center for Intelligent Materials (DCIM) by the Free State of Saxony and TU Dresden. We acknowledge Elettra Sincrotrone Trieste for providing access to its synchrotron radiation facilities and we thank Luisa Barba for assistance in using beamline XRD1. We appreciate the Dresden Center for Nanoanalysis (DCN) for the use of facility, and Dr. Mao Wang, Dr. Zhongquan Liao, as well as Dr. Tilo Lübken for variable‐temperature conductivity, HR‐TEM, and NMR measurement, respectively. We thank Dr. Yu Zhang, Dr. Tao Zhang, and Huanhuan Shi for helpful discussions. Open access funding enabled and organized by Projekt DEAL.

Publisher Copyright:
© 2021 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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