60秒科学:水分解的新途径-病毒
One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water down. Now, there’s a new water-splitter: a virus. M.I.T.’s Angela Belcher took her cue from plants, where special pigments 1 capture solar energy in photosynthesis 2, involving the splitting of water.
Belcher and her team took a harmless virus called M13. They engineered it so that one end carries a catalyst 3—iridium oxide 4. Bound at the other end are light-sensitive pigments, zinc 5 porphyrins. The porphyrins capture light energy, and transmit it along the virus, acting 6 as a wire, to the other end, activating 7 the catalyst. Which splits water into oxygen and the constituents 8 of hydrogen, a proton and electron. The work appears in the journal Nature Nanotechnology. The scientists are working on ways to recombine the protons and electrons back into hydrogen atoms and then molecules 9 of H2. They’re also seeking a cheaper catalyst than iridium. But the work could light one path to the eventual 10 production of cleaner energy.
—Cynthia Graber
- The Romans used natural pigments on their fabrics and walls. 古罗马人在织物和墙壁上使用天然颜料。 来自辞典例句
- The original white lead pigments have oxidized and turned black. 最初的白色铅质颜料氧化后变成了黑色。 来自辞典例句
- In apple trees photosynthesis occurs almost exclusively in the leaves.苹果树的光合作用几乎只发生在叶内。
- Chloroplasts are the structures in which photosynthesis happens.叶绿体就是光合作用发生的地方。
- A catalyst is a substance which speeds up a chemical reaction.催化剂是一种能加速化学反应的物质。
- The workers'demand for better conditions was a catalyst for social change.工人们要求改善工作条件促进了社会变革。
- Oxide is usually seen in our daily life.在我们的日常生活中氧化物很常见。
- How can you get rid of this oxide coating?你们该怎样除去这些氧化皮？
- Brass is formed by the fusion of copper and zinc.黄铜是通过铜和锌的熔合而成的。
- Zinc is used to protect other metals from corrosion.锌被用来保护其他金属不受腐蚀。
- Ignore her,she's just acting.别理她，她只是假装的。
- During the seventies,her acting career was in eclipse.在七十年代，她的表演生涯黯然失色。
- "I didn't say we'd got to stop activating the masses! “我并没说就此不发动！ 来自子夜部分
- Presumably both the very small size and activating influence of fluorine atoms contribute to this exception. 这大概是由于氟原子半径小和活性高这两个原因的影响，氟原子对这种例外做出了贡献。
- She has the full support of her constituents. 她得到本区选民的全力支持。
- Hydrogen and oxygen are the constituents of water. 氢和氧是水的主要成分。 来自《简明英汉词典》
- The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。
- Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里，大分子裂变为小分子。