H2O2 synthesis by selective oxidation of H2 over Pd-Au bimetallic nano colloid catalyst under addition of NaBr and H3PO4

被引：17

作者：

Ishihara, Tatsumi ^{[1
,2
]}

Nakashima, Ryota ^{[2
]}

Ooishi, Yuuki ^{[2
]}

Hagiwara, Hidehisa ^{[2
]}

Matsuka, Maki ^{[1
]}

Ida, Shintaro ^{[2
]}

机构：

[1] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, Fukuoka 8190395, Japan

[2] Kyushu Univ, Fac Engn, Dept Appl Chem, Nishi Ku, Fukuoka 8190395, Japan

来源：

CATALYSIS TODAY | 2015年 / 248卷

关键词：

H2O2; synthesis; Pd-Au nano colloid; Additive; Long term stability; HYDROGEN-PEROXIDE; PD/SIO2; CATALYST; O-2; ACID; RUTILE-TIO2; PALLADIUM; SURFACES; SUPPORTS; ROLES; TS-1;

D O I：

10.1016/j.cattod.2014.01.046

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Effects of additives on H(2)o(2) formation rate and yield were studied to prevent H(2)o(2) decomposition and it was found that high yield and the formation rate of H2O2 can be obtained by using NaBr-H3PO4 additives in spite of much smaller amount compared to NaCl-H2SO4 system,. Since Br-adsorbed strongly on Pd-Au nano colloid surface, relatively high formation rate of H2O2 was attained at 298 K. Therefore, from industrial point of view, addition of NaBr (2 mM) and H3PO4 (0.5 mM) to reaction media for H2O2 direct synthesis, was highly beneficial. However, the H2O2 accumulation experiment, it was found that the H2O2 became negligibly small after 20 h and the decomposition of formed H2O2 became dominant reaction after 40 h. Deactivation of catalyst seems to be related with the decrease in Br- concentration, surface segregation of Pd and particle size growth. After 25 h, H2O2 concentration was reached a value of 5.8 wt% at 298K. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：35 / 39

页数：5

共 28 条

[1] Oxidation of mono- and bicyclic aromatic compounds with hydrogen peroxide catalyzed by titanium silicalites TS-1 and TS-1B [J].

Bianchi, Daniele ;

D'Aloisio, Rino ;

Bortolo, Rossella ;

Ricci, Marco .

APPLIED CATALYSIS A-GENERAL, 2007, 327 (02) :295-299

[2]

Brieva G.B., 2004, CHEM COMMUN, V118, P4

[3] Functional resins as hydrophilic supports for nanoclustered Pd(0) and Pd(0)-Au(0) catalysts designed for the direct synthesis of hydrogen peroxide [J].

Burato, C ;

Centomo, P ;

Rizzoli, M ;

Biffis, A ;

Campestrini, S ;

Corain, B .

ADVANCED SYNTHESIS & CATALYSIS, 2006, 348 (1-2) :255-259

[4] Hydrogen peroxide synthesis: An outlook beyond the anthraquinone process [J].

Campos-Martin, Jose M. ;

Blanco-Brieva, Gema ;

Fierro, Jose L. G. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (42) :6962-6984

[5] Direct synthesis of H2O2 from O2 and H2 over precious metal loaded TS-1 in CO2 [J].

Chen, Qunlai ;

Beckman, Eric J. .

GREEN CHEMISTRY, 2007, 9 (07) :802-808

[6] Evidence for the role of colloidal palladium in the catalytic formation of H2O2 from H2 and O2 [J].

Dissanayake, DP ;

Lunsford, JH .

JOURNAL OF CATALYSIS, 2002, 206 (02) :173-176

[7] Comparison of supports for the direct synthesis of hydrogen peroxide from H2 and O2 using Au-Pd catalysts [J].

Edwards, Jennifer K. ;

Thomas, Adrian ;

Solsona, Benjamin E. ;

Landon, Philip ;

Carley, Albert F. ;

Hutchings, Graham J. .

CATALYSIS TODAY, 2007, 122 (3-4) :397-402

[8] Effect of acid pre-treatment on AuPd/SiO2 catalysts for the direct synthesis of hydrogen peroxide [J].

Edwards, Jennifer K. ;

Parker, Stewart F. ;

Pritchard, James ;

Piccinini, Marco ;

Freakley, Simon J. ;

He, Qian ;

Carley, Albert F. ;

Kiely, Christopher J. ;

Hutchings, Graham J. .

CATALYSIS SCIENCE & TECHNOLOGY, 2013, 3 (03) :812-818

[9] Direct oxidation of hydrogen to hydrogen peroxide over Pd-containing fluorinated or sulfated Al2O3, ZrO2, CeO2, ThO2, Y2O3 and Ga2O3 catalysts in stirred slurry reactor at ambient conditions [J].

Gaikwad, AG ;

Sansare, SD ;

Choudhary, VR .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2002, 181 (1-2) :143-149

[10]

Goor G, 1989, ULLMANNS ENCY IND A, VA13, P443

← 1 2 3 →