Carboxyl-assisted synthesis of Co nanorods with high energy facet on graphene oxide sheets for efficient photocatalytic hydrogen evolution | |
Department | OSSO国家重点实验室 |
Tian B(田彬)1,2; Zhen WL(甄文龙)1; Gao HB(高海波)3; Hao XQ(郝旭强)1; Li Z(李振)1,2; Lu GX(吕功煊)1; Lv GX(吕功煊) | |
2017 | |
Source Publication | Applied Catalysis B: Environmental |
ISSN | 0926-3373 |
Volume | 203Pages:789-797 |
Abstract | In this paper, Co nanorods with extremely high length to diameter and preferred exposed (101) facet were synthesized by carboxyl-assisted over graphite oxide surface. DFT calculation results indicated that (101) facet Co nanorods exhibited higher surface energy of (101) facets (2.61 J/m2) than that of (100) planes nanorods (2.46 J/m2). Such Co nanorods showed very low over-potential for proton reduction, about 0.20 V onset overpotential and 400 and 510 mV at current densities of 2 and 5 mA/cm2, and worked as high active co-catalyst for photocatalytic hydrogen evolution. Co (101) nanorods loaded catalyst generated 891.3 μmol H2 in 2 h, while Co nanoparticles only gave 451.6 μmol of hydrogen during same time. The apparent quantum efficiency (AQE) of Co nanorods catalyst achieved 17.4% at 520 nm. This work opened a news strategy for design of with rodlike structure cocatalyst with preferred exposed high surface energy facet for photocatalytic hydrogen evolution reaction though the carboxylation of GO. |
Keyword | Co Nanorods Carboxyl-assisted High Surface Energy Low Over-potential Hydrogen Evolution |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1016/j.apcatb.2016.10.070 |
Funding Organization | the National Natural Science Foundation of China (Grant Nos. 21433007;21673262);the 973 Program of Department of Sciences and Technology China (Grant No. 2013CB632404) |
Indexed By | SCI |
If | 9.446 |
Language | 英语 |
Funding Project | 环境催化与氢能研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21105 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Lv GX(吕功煊) |
Affiliation | 1.State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China 2.University of Chinese Academy of Science, Beijing 100049, PR China 3.State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, PR China |
Recommended Citation GB/T 7714 | Tian B,Zhen WL,Gao HB,et al. Carboxyl-assisted synthesis of Co nanorods with high energy facet on graphene oxide sheets for efficient photocatalytic hydrogen evolution[J]. Applied Catalysis B: Environmental,2017,203:789-797. |
APA | Tian B.,Zhen WL.,Gao HB.,Hao XQ.,Li Z.,...&吕功煊.(2017).Carboxyl-assisted synthesis of Co nanorods with high energy facet on graphene oxide sheets for efficient photocatalytic hydrogen evolution.Applied Catalysis B: Environmental,203,789-797. |
MLA | Tian B,et al."Carboxyl-assisted synthesis of Co nanorods with high energy facet on graphene oxide sheets for efficient photocatalytic hydrogen evolution".Applied Catalysis B: Environmental 203(2017):789-797. |
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2017, 203, 789-797, (3513KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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