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    "story_id": "mp-2026-08-05-003",
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    "headline": "The Bubble Was Not the Reactive Surface",
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    "dek": "Electrode comparisons placed peroxide formation at solid-water interfaces and challenged a prominent gas-water explanation.",
    "summary": "Electrode comparisons placed peroxide formation at solid-water interfaces and challenged a prominent gas-water explanation.",
    "body_text": "Experiments on steel, copper, aluminum and platinum electrodes produced microbubbles in every case, yet luminol chemiluminescence appeared only with steel and copper. Peroxide yield also depended on the metal, and NMR and EPR measurements indicated that oxygen was required. The authors argue that peroxide forms first at the solid-water interface; steel and copper can then reduce it by one electron to hydroxyl radicals, while aluminum and platinum follow different pathways. They also observed the chemistry without microbubbles, weakening the claim that the gas-water boundary itself creates the radicals. This is a new preprint and remains subject to peer review.",
    "why_it_matters": "Electrode comparisons placed peroxide formation at solid-water interfaces and challenged a prominent gas-water explanation.",
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      "Experiments on steel, copper, aluminum and platinum electrodes produced microbubbles in every case, yet luminol chemiluminescence appeared only with steel and copper."
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        "qualification": "Experiments on steel, copper, aluminum and platinum electrodes produced microbubbles in every case, yet luminol chemiluminescence appeared only with steel and copper."
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    "tags": [
      "microbubbles",
      "hydrogen peroxide",
      "electrochemistry"
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      "source_id": "source-2026-08-05-003",
      "title": "arXiv preprint: Resolving the Bubble Puzzle",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2608.02622",
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    "title": "The Bubble Was Not the Reactive Surface",
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