Photocatalytic H2 production from ethanol(aq) solutions: The effect of intermediate products

被引：26
|
作者：
Sola, A. C. [1 ,2 ,3 ]
Homs, N. [1 ,2 ,3 ]
Ramirez de la Piscina, P. [1 ,2 ]
机构：
[1] Univ Barcelona, Dept Quim Inorgan & Organ, Seccio Quim Inorgan, mar, C Marti & Franques 1-11, E-08028 Barcelona, Spain
[2] Univ Barcelona, Inst Nanociencia & Nanotecnol, C Marti & Franques 1-11, E-08028 Barcelona, Spain
[3] Catalonia Inst Energy Res IREC, Jardins Dones Negre 1, Barcelona 08930, Spain
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2016年 / 41卷 / 43期
关键词：
Ethanol photoreforming; Acetaldehyde photoreforming; Acetic acid photoreforming; 2,3 butanediol photoreforming; H-2 production rate; Renewable H-2; HYDROGEN-PRODUCTION; IN-SITU; PT/TIO2; TIO2; ACETALDEHYDE; DEGRADATION; CATALYSTS; WATER; FTIR; CO;
D O I：
10.1016/j.ijhydene.2016.05.268
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The production of H-2 via the photocatalytic transformation of aqueous solutions of ethanol, over Pt/anatase was studied in a semi-batch reactor. High H-2/COx ratios were obtained indicating that the photoreforming of ethanol only occurred in a small proportion of the ethanol. The main products detected in the liquid phase after the photocatalytic conversion of ethanol solutions were acetaldehyde, acetic acid and 2,3-butanediol, with acetaldehyde being the most abundant. The photoreaction of acetaldehyde(4, acetic acid((aq)) or 2,3-butanediol((aq)) resulted in lower amounts of H-2 compared with that of ethanol((aq)). The main reaction pathway for the photocatalytic transformation of acetaldehyde((aq)) is via the formation of acetic acid and H-2. Then, CO2 and CH4 are formed from the decomposition of acetic acid((aq)). The decrease in the H-2 production rate during the photocatalytic reforming of ethanol solutions is related to the presence of the intermediate products formed in the liquid phase that are not removed from the reaction medium. Carboxylate species and metallic Pt were present on the surface of the post-reaction catalyst. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：19629 / 19636
页数：8
相关论文
共 50 条
  • [21] Photocatalytic H2 production from spinels ZnGa2-xCrxO4 (0 ≤ x ≤ 2) solid solutions
    Xu, Xiaoxiang
    Xie, Yinghao
    Ni, Shuang
    Azad, Abul K.
    Cao, Tongcheng
    JOURNAL OF SOLID STATE CHEMISTRY, 2015, 230 : 95 - 101
  • [22] DFT studies of ethanol decomposition for H2 production
    Zhang, Jia
    Cao, Xiaoming
    Hu, Peijun
    Zhong, Ziyi
    Borgna, Armando
    Wu, Ping
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2012, 243
  • [23] Promotion of H2 production from ethanol steam reforming by zeolite basicity
    Inokawa, Hitoshi
    Nishimoto, Shunsuke
    Kameshima, Yoshikazu
    Miyake, Michihiro
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (23) : 15195 - 15202
  • [24] Effect of the TiO2 Nanocrystal Dispersion Over SBA-15 in the Photocatalytic H2 Production Using Ethanol as Electron Donor
    Torres-Garcia, Nidia L.
    Fresno, Fernando
    Oropeza, Freddy E.
    Huirache-Acuna, Rafael
    Pena-O'Shea, Victor A.
    ADVANCED SUSTAINABLE SYSTEMS, 2021, 5 (11)
  • [25] Sustainable Production of Layered Bismuth Oxyhalides for Photocatalytic H2 Production
    Gordon, Matthew N.
    Chatterjee, Kaustav
    Beena, Nayana Christudas
    Skrabalak, Sara E.
    ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2022, 10 (48) : 15622 - 15641
  • [26] H2 from ethanol:: cheap and fast
    不详
    CHEMICAL & ENGINEERING NEWS, 2004, 82 (07) : 55 - 55
  • [27] Effect of ions on photocatalytic H2 production using corn straw as sacrificial agent
    Zhou Y.
    Lin D.
    Ye X.
    Sun B.
    Huagong Xuebao/CIESC Journal, 2022, 73 (02): : 722 - 729
  • [28] Photocatalytic H2 production from ethanol aqueous solution using TiO2 with tungsten carbide nanoparticles as co-catalyst
    Pajares, A.
    Wang, Y.
    Kronenberg, M. J.
    Ramirez de la Piscina, P.
    Homs, N.
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2020, 45 (40) : 20558 - 20567
  • [29] Effect of Pt Loading Order on Photocatalytic Activity of Pt/TiO2 Nanofiber in Generation of H2 from Neat Ethanol
    Wang, Feng-Chieh
    Liu, Chun-Hsuan
    Liu, Chih-Wei
    Chao, Jiunn-Hsing
    Lin, Chiu-Hsun
    JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (31): : 13832 - 13840
  • [30] Particle aggregation behavior during photocatalytic ethanol reforming reaction and its correlation with the activity of H2 production
    Luo, Bing
    Song, Rui
    Jing, Dengwei
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2017, 535 : 114 - 120
12345