Zheng-He Peng

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Name: 蔡苹; Ping Cai
Organization: Wuhan University , China
Department: Department of Chemistry
Title: Associate Professor(PhD)

TOPICS

Co-reporter:Luhong Fu;Ping Cai;Gongzhen Cheng;Wei Luo
Sustainable Energy & Fuels (2017-Present) 2017 vol. 1(Issue 5) pp:1199-1203
Publication Date(Web):2017/06/27
DOI:10.1039/C7SE00113D
The design of high-performance electrocatalysts for oxygen evolution reactions (OER) in acidic condition is highly desirable for the development of the proton exchange membrane (PEM)-based water electrolyzer. Herein, we report the colloidal synthesis of iridium-iron alloy nanoparticles with an average diameter of 2.4 nm. The as-synthesized IrFe alloy produces a current density of 10 mA cm−2 in acidic and alkaline conditions at overpotentials of 278 and 286 mV, respectively.
Co-reporter:Lan Wen, Xiaoqiong Du, Jun Su, Wei Luo, Ping Cai and Gongzhen Cheng  
Dalton Transactions 2015 vol. 44(Issue 13) pp:6212-6218
Publication Date(Web):19 Feb 2015
DOI:10.1039/C5DT00493D
Well-dispersed bimetallic Ni–Pt nanoparticles (NPs) with different compositions have been successfully grown on the MIL-96 by a simple liquid impregnation method using NaBH4 as the reducing agent. Powder X-ray diffraction, transmission electron microscopy, energy-dispersive X-ray spectroscopy, N2 adsorption–desorption, and inductively coupled plasma-atomic emission spectroscopy measurements were employed to characterize the NiPt/MIL-96. Catalytic activity of NiPt/MIL-96 catalysts was tested in the hydrogen generation from the aqueous alkaline solution of hydrazine at room temperature. These catalysts are composition dependent on their catalytic activity, while Ni64Pt36/MIL-96 exhibits the highest catalytic activity among all the catalysts tested, with a turnover frequency value of 114.3 h−1 and 100% hydrogen selectivity. This excellent catalytic performance might be due to the synergistic effect of the MIL-96 support and NiPt NPs, while NiPt NPs supported on other conventional supports, such as SiO2, carbon black, γ-Al2O3, poly(N-vinyl-2-pyrrolidone) (PVP), and the physical mixture of NiPt and MIL-96, all of them exhibit inferior catalytic activity compared to that of NiPt/MIL-96.
Co-reporter:Lan Wen, Zhong Zheng, Wei Luo, Ping Cai, Gong-Zhen Cheng
Chinese Chemical Letters 2015 Volume 26(Issue 11) pp:1345-1350
Publication Date(Web):November 2015
DOI:10.1016/j.cclet.2015.06.019
Ultrafine Ru nanoparticles are successfully deposited on MCM-41 by using a simple liquid impregnation-reduction method, and further investigated for catalytic hydrolysis of ammonia borane and methylamine borane. Among all the catalysts tested, 1.12 wt% Ru/MCM-41 exhibits the highest catalytic activity, with turnover frequency value of 288 min−1.Ultrafine Ru nanoparticles have been successfully deposited on MCM-41 by using a simple liquid impregnation method. The 1.12 wt% Ru/MCM-41 exhibit the highest catalytic activity, with the turnover frequency value of 288 min−1 toward catalytic hydrolysis of ammonia borane.
Co-reporter:Xiaohu Zhang;Uahengo Veikko;Jin Mao;Dr. Ping Cai; Tianyou Peng
Chemistry - A European Journal 2012 Volume 18( Issue 38) pp:12103-12111
Publication Date(Web):
DOI:10.1002/chem.201200725

Abstract

Highly efficient, visible light induced photocatalytic H2 production was achieved over a TiO2 system sensitized by binuclear RuII bipyridyl (bpy) complex [Ru2(bpy)4(BL)](ClO4)2 (BL=bridging ligand) without Pt loading, which is almost unaffected by pH in aqueous solution in the wide range from pH 5.00 to 10.50, although the dye molecules can only be loosely attached to TiO2 due to the absence of terminal carboxyl groups. The photocatalyst shows remarkable long-term stability and reproducibility of H2 evolution even after exchanging the aqueous triethanolamine solution. The amount of H2 evolved over 100 mg of photocatalyst in 27 h of irradiation corresponds to a turnover number of about 75 340, and the apparent quantum yields are estimated to be 16.8 and 7.3 % under 420 and 475 nm monochromatic light irradiation, respectively. A comparative study shows that the loosely attached dye [Ru2(bpy)4(BL)](ClO4)2 has higher photosensitization efficiency than tightly linked dyes with terminal carboxyl groups, such as [Ru2(dcbpy)4(BL)](ClO4)2 and N719. It can be rationalized by their different coordination, physicochemical, electron-injection, and back-transfer properties.

Co-reporter:Ping Cai, Jing-Ran Hou, Tian-Shu Liu, Gong-Zhen Cheng, Tian-You Peng, Zheng-He Peng
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2008 Volume 71(Issue 2) pp:584-587
Publication Date(Web):15 November 2008
DOI:10.1016/j.saa.2008.01.011
A luminescent Zn(II) complex 1, ZnL2Cl2·2H2O has been synthesized where L = 2,2′,2″-(1,3,5-benzenetriyltrimethylidyne) as a yellow crystal. Single crystal X-ray analysis of the compound 1 shows a distorted tetrahedral structure. The compound 1 crystallizes in monoclinic, space group C2/c with a = 20.3151(19), b = 8.7299(9), c = 24.626(2) Å, β = 107.474(2)°, V = 4165.9(7) Å3. At room temperature, the complex 1 exhibits an intense blue emission at 474 nm upon 380 nm excitation.
Co-reporter:Lan Wen, Xiaoqiong Du, Jun Su, Wei Luo, Ping Cai and Gongzhen Cheng
Dalton Transactions 2015 - vol. 44(Issue 13) pp:NaN6218-6218
Publication Date(Web):2015/02/19
DOI:10.1039/C5DT00493D
Well-dispersed bimetallic Ni–Pt nanoparticles (NPs) with different compositions have been successfully grown on the MIL-96 by a simple liquid impregnation method using NaBH4 as the reducing agent. Powder X-ray diffraction, transmission electron microscopy, energy-dispersive X-ray spectroscopy, N2 adsorption–desorption, and inductively coupled plasma-atomic emission spectroscopy measurements were employed to characterize the NiPt/MIL-96. Catalytic activity of NiPt/MIL-96 catalysts was tested in the hydrogen generation from the aqueous alkaline solution of hydrazine at room temperature. These catalysts are composition dependent on their catalytic activity, while Ni64Pt36/MIL-96 exhibits the highest catalytic activity among all the catalysts tested, with a turnover frequency value of 114.3 h−1 and 100% hydrogen selectivity. This excellent catalytic performance might be due to the synergistic effect of the MIL-96 support and NiPt NPs, while NiPt NPs supported on other conventional supports, such as SiO2, carbon black, γ-Al2O3, poly(N-vinyl-2-pyrrolidone) (PVP), and the physical mixture of NiPt and MIL-96, all of them exhibit inferior catalytic activity compared to that of NiPt/MIL-96.
4,4'-(1,4-BUTANEDIYL)DIOXYDIBENZALDEHYDE
Benzaldehyde,4,4'-[1,2-ethanediylbis(oxy)]bis-
2-CHLORO-3-CYANO-5-NITROPYRIDINE
Methylamine borane(3)
MIL-96(Al)