Enhancing photoactivity for hydrogen generation by electron tunneling via flip-flop hopping over Mobius strip-like RGO | |
Department | OSSO国家重点实验室 |
Li Z(李振)1,2; Tian B(田彬)1,2; Zhen WL(甄文龙)1,2; Zhang WY(张文妍)1; Zhang XQ(张旭强)1; Wu YQ(吴玉琪)1; Lu GX(吕功煊)1; Lv GX(吕功煊) | |
2017 | |
Source Publication | Applied Catalysis B: Environmental |
ISSN | 0926-3373 |
Volume | 219Pages:501-510 |
Abstract | In this work, the Mobius strip-like reduced graphene oxide (RGO) was fabricated via I3- and I5- clusters, which offered a route for electron tunneling over RGO. This flip-flop electron tunneling took place via strong Rashba spin-orbit coupling between polyiodides and C atoms of RGO by the active electrons of polyiodides living in the p orbitals and it could bridge the easier charge transfer route between far-located carbon atoms at the edges of RGO through the polyiodides. This tunneling also restrained effectively the anisotropy of the electron transfer over RGO surface, achieving the rapid and efficient electron transfer over the surface of the RGO, resulting in remarkable increase of RGO conductivity and enhancing the lifetime of photogenerated charges. With the help of these properties, the obtained I-RGO/Ag photocatalyst presented a high H2 generation activity under visible light irradiation. 318.8 mu mol H-2 was evolved over I-RGO/Ag photocatalyst in 3 h, about 3.3 time higher than that of un-iodine RGO/Ag. In addition, no remarkable decay of H2 evolution activity was observed in 1080 min reaction. The highest apparent quantum efficiencie (AQE) value of 28.8% was achieved at 430 nm. |
Keyword | Mobius Strip-like Rgo Rashba Spin-orbit Coupling Flip-flop Electron Tunneling Hydrogen Evolution Reaction |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1016/j.apcatb.2017.08.003 |
Funding Organization | the NSF of China (grant no. 21433007;21173242;21673262) |
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/362003/22517 |
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.Chinese Acad Sci, State Key Lab Oxo Synth & Select Oxidat, Lanzhou Inst Chem Phys, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Li Z,Tian B,Zhen WL,et al. Enhancing photoactivity for hydrogen generation by electron tunneling via flip-flop hopping over Mobius strip-like RGO[J]. Applied Catalysis B: Environmental,2017,219:501-510. |
APA | Li Z.,Tian B.,Zhen WL.,Zhang WY.,Zhang XQ.,...&吕功煊.(2017).Enhancing photoactivity for hydrogen generation by electron tunneling via flip-flop hopping over Mobius strip-like RGO.Applied Catalysis B: Environmental,219,501-510. |
MLA | Li Z,et al."Enhancing photoactivity for hydrogen generation by electron tunneling via flip-flop hopping over Mobius strip-like RGO".Applied Catalysis B: Environmental 219(2017):501-510. |
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2017, 219, 501-510, (3810KB) | 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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