| 查看: 27849 | 回复: 934 | ||
| 【奖励】 本帖被评价258次，作者htj5170增加金币 200 个 | ||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | ||
[资源]
2011新书光催化Topics in Current Chemistry：Photocatalysis
|
||
|
Photocatalysis Preface Solar energy is the only renewable and carbon neutral energy source of sufficient scale to replace fossil fuels. Direct conversion of this energy into clean fuels is one of the most important scientific challenges of the 21st century. In this context, both hydrogen production from solar water splitting and carbon dioxide conversion to organics are obviously attractive, being potentially convenient and clean methods to store solar energy in energy rich molecules which can be employed as virtually inexhaustible fuel sources. Although the realization of a molecular level system mimicking natural photo- synthesis for the production of solar fuels is certainly fascinating from a fundamen- tal viewpoint, the achievement of efficient water splitting has so far been limited by a small driving force and kinetic complications arising from the need to realize a multiple proton coupled charge transfer, which is necessary to simultaneously overcome the demanding kinetics of water oxidation and reduction. For these reasons either sacrificial hole or electron scavengers have been coupled to most molecular level charge separators. Since the experiment of Fujishima and Honda in 1972, the direct use of semi- conductor photoelectrodes or nanoparticles, have appeared to be an alternative way for achieving photoinduced water splitting, thanks to the possibility of obtaining, with a practically unitary quantum yield, highly energetic charge carriers that can induce the required electrochemical reactions at the solid/electrolyte interface. Photoanodes based on n-type metal oxides like TiO2,WO3 and Fe2O3 have been intensely studied, since, at appropriate pH, they couple ease of fabrication, high chemical stability in aqueous solution under evolving oxygen conditions, and reasonably high incident light to current generation when operated in a photoelec- trochemical cell. On the other hand, the development of molecular systems and interfaces for the conversion of carbon dioxide into energy rich molecules represents an important technological and environmental challenge due to the abundance of CO2 in the biosphere that contributes significantly to the greenhouse effect. In this context important research activities are directed towards the preparation of photocatalysts containing a photosensitizer unit, which initiates photochemical one-electron ixtransfer events, and a catalyst which stores reducing equivalents to achieve multi- electron reduction of CO2. Finally, Photocatalysis is particularly relevant in order to realize chemical trans- formations of synthetic interest with a minimal environmental impact. In fact, pho- tochemical reactions require milder conditions than thermal processes and may allow for the conception of short and efficient reaction sequences, minimizing side processes. The research discussed within the framework of this volume aims to identify and provide solutions to these problems through the application of solar energy conver- sion schemes which involve the use of regenerative photoelectrochemical, photo- electrolytic or photoelectrosynthetic cells in which solar energy can be stored into chemical fuels and in the development of photocatalytic processes for selective photooxidation of organic compounds. Carlo Alberto Bignozzi Stefano Caramor[ Last edited by htj5170 on 2011-9-22 at 21:47 ] |
回复此楼» 收录本帖的淘帖专辑推荐
» 本帖已获得的红花（最新10朵）
想走就走» 猜你喜欢
2026湖北师范大学化学化工学院招收研究生调剂
已经有0人回复
-
26年材料/化学相关专业博士研究生招生 温州大学化学与材料工程学院(26年秋季入学)
已经有0人回复
-
物理化学论文润色/翻译怎么收费?
已经有148人回复
-
0703调剂
已经有2人回复
-
085602化学工程求调剂。
已经有4人回复
-
2026年博士研究生招生
已经有1人回复
-
304求调剂
已经有6人回复
-
国家工程物理交叉科学研究中心招收凝聚态物理及相关专业硕士研究生一名
已经有10人回复
-
数二英语一的 理工科 求调剂
已经有0人回复
» 本主题相关价值贴推荐，对您同样有帮助:
- Catalysis for Alternative Energy Generation
已经有57人回复
- mini-reviews in medical chemistry 投稿求助
已经有3人回复
- 如何计算one-electron energy level
已经有11人回复
- Current Catalysis属于什么级别的期刊？
已经有7人回复
- 分享：清晰英文版电子书《solid state chemistry》
已经有216人回复
- 2011年新书《Advances in Ceramics 》
已经有131人回复
- 光催化钛基复合材料---原理(一）
已经有17人回复
- 【求助】C-TiO2材料的光催化问题
已经有10人回复
49楼2011-09-23 20:51:45
2楼2011-09-21 16:55:25
7楼2011-09-22 09:04:04
简单回复
南方嘉木8964楼
2011-09-21 21:47
回复
五星好评 
xtliu9楼
2011-09-23 08:14
回复
五星好评 
chemali11楼
2011-09-23 08:56
回复
三星好评 
haiwangxing12楼
2011-09-23 08:56
回复
五星好评 
xiaoshm13楼
2011-09-23 09:00
回复
五星好评 顶一下，感谢分享！
2011-09-23 09:14
回复
五星好评 顶一下，感谢分享！
