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  "path": "/news/2026-02-compact-device-sunlight-hydrogen-efficiency.html",
  "publishedAt": "2026-02-10T16:12:00.000Z",
  "site": "https://techxplore.com",
  "tags": [
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  "textContent": "Hydrogen is widely regarded as one of the cleanest fuels for the future, producing only water when used. However, generating hydrogen efficiently and sustainably remains a major challenge. Most current technologies waste a large portion of solar energy as heat, limiting overall energy conversion efficiency.",
  "title": "Compact device turns sunlight and waste heat into hydrogen at 28% efficiency"
}