DataVXACS Applied Nano MaterialsPaper
journal article·2024-10-25

Catalytic Gas-Driven Exfoliation of Sulfonic Acid-Linked Covalent Organic Framework Nanostructures for Hydrogen Sensing

Valle Krishnaveni, Marilyn Esclance DMello, Nany Thokala, Alekhya Bonda, Vinay Kumar Sriramadasu, Swamy Akkenapally, Sumit B. Bubanale, Keloth Basavaiah, Santanu Bhattacharyya, Suresh Babu Kalidindi

ACS Applied Nano Materials· Volume 7· Issue 20
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Source abstract

Abstract

Exfoliating bulk covalent organic frameworks into soluble covalent organic nanosheets (CONs) enhances processability. Utilizing the catalytic ability of −SO 3 H groups, ammonia borane hydrolysis was performed in the pores of a TpPa-SO 3 H COF (Tp = 1,3,5-triformylphloroglucinol; Pa-SO 3 H = 2,5-diaminobenzenesulfonic acid). The in situ generated hydrogen converted bulk powders into CONs (thickness = 4–16 nm). The CONs-based H 2 sensor showed a response of 12.5 ± 0.6% and response/recovery times of 5.5 ± 1/2.6 ± 0.5 s, respectively, at 120 °C for 1% H 2 . The sensor offers quicker response and recovery times compared to nonmetallic H 2 sensors like polyaniline and polythiophene.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Covalent Organic Framework Applications · Metal-Organic Frameworks: Synthesis and Applications · Advanced Photocatalysis Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry, Andhra University, Visakhapatnam, Andhra Pradesh 530003, India

Centre for Nano and Soft Matter Sciences, Bangalore, Karnataka 562123, India

Central Tribal University of Andhra Pradesh, Kondakarakam Village Cantonment Area, Vizianagaram, Andhra Pradesh 535003, India

Department of Chemical Sciences, Indian Institute of Science Education and Research Berhampur, Berhampur, Odisha 760010, India

Materials Science and Catalysis Division, Poornaprajna Institute of Scientific Research, Bidalur Post, Devanahalli, Bangalore, Karnataka State 562164, India

Funding

Science and Engineering Research Board

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