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1. Electrochemical Hydrogen Evolution at the Interface of Monolayer VS₂ and Water from First-Principles Calculations

Author:
He, Qiaoqiao,   et al.   ; Chen, Xiaobo; Chen, Shiqi; Liu, Lu; Zhou, Fangwang; Li, Xi-Bo; Wang, Guangjin;     Show all 7 Authors
Source:
ACS applied materials & interfaces 2018 v.11 no.3 pp. 2944-2949
ISSN:
1944-8252
Subject:
aqueous solutions; catalysts; density functional theory; electrochemistry; hydrogen; hydrogen production; phase transition
Abstract:
... Density functional theory calculations are carried out to study the hydrogen evolution reaction (HER) at the electrochemical double-layer interface of monolayer 2H phase VS₂ and water. Under typical conditions of HER, the catalyst surface is predicted to have a low hydrogen coverage of about 12%, whereas the aqueous solution side features a high hydronium concentration of about 8.3%. As a result, ...
DOI:
10.1021/acsami.8b17075

2. A novel photoactive and three-dimensional stainless steel anode dramatically enhances the current density of bioelectrochemical systems

Author:
He, Qiaoqiao,   et al.   ; Feng, Huajun; Tang, Chenyi; Wang, Qing; Liang, Yuxiang; Shen, Dongsheng; Guo, Kun; Jayaprada, Thilini; Zhou, Yuyang; Chen, Ting; Ying, Xianbin; Wang, Meizhen;     Show all 12 Authors
Source:
Chemosphere 2018 v.196 pp. 476-481
ISSN:
0045-6535
Subject:
anodes; bioelectrochemistry; biofilm; lighting; photocatalysis; stainless steel; synergism
Abstract:
... This study reports a high-performance 3D stainless-steel photoanode (3D SS photoanode) for bioelectrochemical systems (BESs). The 3D SS photoanode consists of 3D carbon-coated SS felt bioactive side and a flat α-Fe2O3-coated SS plate photoactive side. Without light illumination, the electrode reached a current density of 26.2 ± 1.9 A m−2, which was already one of the highest current densities repo ...
DOI:
10.1016/j.chemosphere.2017.12.166

3. Toxicity of 8-Hydroxyquinoline in Cryprinus carpio Using the Acute Toxicity Test, Hepatase Activity Analysis and the Comet Assay

Author:
He, Qiaoqiao,   et al.   ; Yan, Shuaiguo; Chen, Lili; Dou, Xiaofei; Qi, Meng; Du, Qiyan; Nan, Mingge; Chang, Zhongjie; Nan, Ping;     Show all 9 Authors
Source:
Bulletin of environmental contamination and toxicology 2015 v.95 no.2 pp. 171-176
ISSN:
0007-4861
Subject:
8-hydroxyquinoline; DNA damage; acute toxicity; adults; aquatic ecosystems; biomarkers; ecotoxicology; genotoxicity; high performance liquid chromatography; ornamental fish; quinoline; raw materials; toxicity testing; China
Abstract:
... To evaluate the environmental toxicity of 8-hydroxyquinoline (8-HOQ), an important industrial raw material found in China’s major ornamental fish, Cryprinus carpio, using the acute toxicity test, hepatase activity analysis and the comet assay. The results indicated that 8-HOQ had significant acute toxicity in adult C. carpio with a 96 h-LC₅₀ of 1.15 and 0.22 mg L⁻¹ hepatic quinoline residues as as ...
DOI:
10.1007/s00128-015-1566-9

4. Synthesis of Functionalized Fluorescent Indenes from Electron-Rich α-Aryl Ketonitriles

Author:
He, Qiaoqiao,   et al.   ; Liu, Le; Fan, Yanfeng; Zhang, Yun; Zhang-Negrerie, Daisy; Huang, Jianhui; Du, Yunfei; Zhao, Kang;     Show all 8 Authors
Source:
Journal of organic chemistry 2012 v.77 no.8 pp. 3997-4004
ISSN:
1520-6904
Subject:
chemical bonding; chemical structure; cyclization reactions; dimerization; fluorescence; heterolytic cleavage; indenes; organic chemistry
Abstract:
... A series of functionalized indenes bearing 1,3-dicyano groups were synthesized from electron-rich α-aryl ketonitriles in the presence of K₃Fe(CN)₆ and NaOAc, possibly through tandem process involving dimerization, heterolytic cleavage of carbon–carbon bond, intermolecular coupling, and the subsequent intramolecular cyclization. The 2-arylindene compounds obtained possess good fluorescent propertie ...
DOI:
10.1021/jo300367q