AI Article Synopsis
- Undesirable leaks in power plant condenser tubes lead to lower power output and significant revenue losses, with existing solutions offering only temporary fixes.
- Researchers developed new in situ sealants using modified graphene oxides combined with a bio-inspired adhesive, improving long-term defect repair.
- These functional graphenic material (FGM) sealants exhibited better antimicrobial properties and stronger adhesion, successfully sealing defects in experiments, unlike traditional unfunctionalized materials.
Article Abstract
Undesirable condenser tube leaks frequently occur in power plants, resulting in reduced power output, increased burden on downstream systems, and substantial revenue losses. Current techniques such as wood flour provide temporary in situ remediation but lack adhesive properties to form stable seals. Here, we report the development of in situ sealants for long-term defect repair. The carboxylic acids on graphene oxides and Claisen graphene were used as chemical handles to covalently install a bio-inspired, adhesive catechol, generating a class of functional graphenic material (FGM) sealants. FGM sealants outperformed unfunctionalized scaffolds with enhanced antimicrobial activity to prevent fouling (up to 55% reduction) and superior cohesive properties to promote stable seals. Further, FGM sealants were adhesive, effectively sealing defects in a model experiment, whereas unfunctionalized scaffolds did not display any sealant capacity.
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| http://dx.doi.org/10.1021/acsami.9b05313 | DOI Listing |
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Functional Graphenic Materials That Seal Condenser Tube Leaks in Situ.
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