Due to their high surface energy, nanoparticles tend to aggregate or grow larger over time (agglomeration or Ostwald ripening). This instability reduces their unique size-dependent properties and poses challenges for synthesis, storage, processing, and long-term performance in applications.
The main hindrance of nanomaterials is
Asked in WBCS Main Paper 4 2022 · Topic: Physical and Chemical Changes, Solution (Definition and Characteristics of Chemical Changes (Chemical Reactions))
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Answer: C. coarsening effect from ostwald ripening or agglomeration on aging.
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