Synergetic Photo-Thermo Catalytic Hydrogen Production by Carbon Materials,The Journal of Physical Chemistry Letters

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Synergetic Photo-Thermo Catalytic Hydrogen Production by Carbon Materials
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2022-02-10 , DOI: 10.1021/acs.jpclett.1c03988
Dechao Wang _{1,

2} , Rong Chen _{1,

2} , Xun Zhu _{1,

2} , Dingding Ye _{1,

2} , Yang Yang _{1,

2} , Youxu Yu _{1,

2} , Jinwang Li _{1,

2} , Yuxin Liu _{1,

2} , Hang Zhao _{1,

2} , Qiang Liao _{1,

2}

Affiliation

Photo-thermo catalytic hydrogen production represents one of the most promising routes for channeling solar energy but typically suffers from high reaction temperatures. In this work, we develop photo-thermo catalytic hydrogen production at low temperatures by cost-effective, nonplasmonic, and metal-free nitrogen-doped carbon materials (CNO_1–x). We demonstrate that due to the photothermal conversion of CNO_1–x, carrier generation is improved and electron migration is enhanced to suppress the recombination of electron–hole pairs, both of which promote hydrogen production by photocatalysis, while generated hydrogen radicals facilitate the regeneration of active sites for hydrogen production by thermocatalysis. Such synergy greatly promotes photo-thermo catalytic hydrogen production at low temperatures. These results demonstrate the great promise of photo-thermo catalytic hydrogen production over carbon materials at low temperatures.

中文翻译：

碳材料协同光热催化制氢

光热催化制氢是引导太阳能的最有希望的途径之一，但通常会受到高反应温度的影响。_{在这项工作中，我们通过具有成本效益、非等离子体和无金属的氮掺杂碳材料 (CNO 1– x} )在低温下开发了光热催化制氢。我们证明，由于 CNO _{1– x的光热转化}，载流子生成得到改善，电子迁移增强以抑制电子-空穴对的复合，这两者都促进了光催化制氢，而产生的氢自由基促进了热催化制氢活性位点的再生。这种协同作用极大地促进了低温下的光热催化制氢。这些结果证明了在低温下对碳材料进行光热催化制氢的巨大前景。

更新日期：2022-02-10

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