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polyoxometalate

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[ Last edited by pzypdl on 2013-2-19 at 22:24 ]
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polyoxometalate

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We also measured photocatalytic H2 production using black TiO2 as the photocatalyst with only visible and infrared light by filtering out incident light with wavelengths shorter than about 400 nm. The rate of H2 production dropped to 0.1 mmol +/- 0.02 per hour per gram of photocatalysts, reflecting the activity of the extended tail or mid-gap states of the thin disordered layer that have a narrower band gap created by disordering.
8Â¥2013-02-05 14:25:58
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yanhj0

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pzypdl: ½ð±Ò+1, лл»ØÌû½»Á÷£¡ 2013-02-01 19:56:37
¾ø¶Ô²úÇâÁ¿ÊDz»¿É±ÈµÄ. ÒòΪ²»Í¬µÄʵÑéËùÓõĹâÔ´, ´ß»¯¼ÁÓÃÁ¿µÈ²»Ò»¶¨Ïàͬ,ËùÒÔûÓпɱÈÐÔ. Ò»°ã±È½ÏµÄÊÇÔÚijһ²¨³¤ÏµÄÁ¿×ÓЧÂÊ.
2Â¥2013-02-01 19:46:07
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doctorzyjunior

Í­³æ (СÓÐÃûÆø)


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cxqtitan: ½ð±Ò+1, лл·ÖÏí 2013-02-03 13:12:31
Ref: Chem. Mater. 2008, 20, 35-54
Current record holders in therms of quantum efficiencies (QEs) are NiO-modified La/KTaO3 (QE = 56%, pure water, UV light), ZnS (QE = 90%, aqueous Na2S/Na2SO3, light with ¦Ë> 300 nm), and Cr/Rh-modified GaN/ZnO (QE = 2.5%, pure water, visible light).
ÓÃQE×ö²Î¿¼£¬±È½ÏÆðÀ´²Å(Ŀǰ¹«ÈÏ Angew. Chem. Int. Ed. 2010, 49, 1536-1539)ÓÐÒâÒå¡£ËùÒÔ£¬ÄãËùνµÄ¡°²úÇ⡱ÊýÁ¿ÊÇÒ»¸ö²»¾ßÓÐʵ¼ÊÒâÒåµÄÊýÖµ¡£¹éÒ»»¯ºÜÖØÒª¡£¾ÍºÃ±ÈÄãµ¥µ¥ÌÖÂÛ¡°TON¡±µÄ¶àÉÙ£¬Ô¶²»Èç¡°TOF¡±À´µÃÓпɱȽÏÐÔ¡£
3Â¥2013-02-03 04:49:08
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liuyinallen

Òø³æ (СÓÐÃûÆø)


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Сľ³æ: ½ð±Ò+0.5, ¸ø¸öºì°ü£¬Ð»Ð»»ØÌû
cxqtitan: ½ð±Ò+1, лл·ÖÏí 2013-02-05 08:05:48
Agreed with "doctorzyjunior" said.
FYI, please check some references from Dr. Kudo's group, Dr. Domen's group and Dr. H. Teng's group (from National Cheng Kung University, Taiwan). I did some water splitting exp. using optimized Kudo's catalyst (NiO-NaTaO3:La). The max H2 evolution rate I observed is  ~10mmol/hr.gcat (pure water, low pressure UV lamp  90% ouput at 254 nm).
4Â¥2013-02-05 04:42:05
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