Peng Han

North China University of Water Resources and Electric Power

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Gengfeng Zheng

Fudan University

Kuijuan Jin

Chinese Academy of Sciences

Weihua Li

Harbin Institute of Technology

Guozhen Yang

Institute of Physics

Min Kuang

Donghua University

Huibin Lü

Yanshan University

Huiwen Tian

Institute of Oceanology

Liying Song

University of Science and Technology Beijing

Chunlian Hu

State Key Laboratory of Applied Organic Chemistry

Zhengxiang Gu

Nanjing Normal University

Cooperative Institutions

Chinese Academy of Sciences

145

University of Chinese Academy of Sciences

Fudan University

Tsinghua University

University of Science and Technology of China

Nanjing University

China University of Mining and Technology

Institute of Physics

Zhejiang University

Huazhong University of Science and Technology

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Synergistic corrosion inhibition of A₃ steel in hydrochloric acid by Sodium dodecyl sulfate and 2‐mercaptopyridine: Experimental and theoretical calculations

International Journal of Chemical Kinetics (2021)

Peng Han Fei Du Xiuzhi Wang Chenyang Xu Ruiping Liu

Abstract The inhibition performance of sodium dodecyl sulfate (SDS) and 2‐mercaptopyridine (2MP) corrosion inhibitors on A 3 steel in 0.5 M HCl increase with increasing of the inhibitor concentration (50–200 mg L −1 ). SDS and 2MP inhibitor follow Freundlich adsorption isotherm and Langmuir adsorption isotherm, respectively. These two inhibitors exhibit good synergistic inhibition effect on the corrosion of A 3 steel in 0.5 M HCl solution when the mass ratio of SDS:2MP is 1:4. Gibbs free energy of the mixture is lower and the mixture exhibit good adsorption stability. 2MP molecule are adsorbed on metal surface through N atom and sulfhydryl group. SDS molecule interacts with metal through O atoms while the alkyl chain pointing to the test solution. This adsorption configuration is beneficial to the formation of the inhibitor film, the migration of the corrosive particles to the metal surface was hindered and thus the metal surface was protected.

Hydrochloric acid

Sodium dodecyl sulfate

Langmuir adsorption model

10.1002/kin.21498

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Citations (4)

NbO₂ Electrocatalyst Toward 32% Faradaic Efficiency for N₂ Fixation

Small Methods (2018)

Linsong Huang Jiawen Wu Peng Han Abdullah M. Al‐Enizi Tahani Mazyad Almutairi

Abstract The electrocatalytic N 2 reduction reaction (NRR) to produce ammonia is an attractive but highly challenging approach, due to the extreme inertness of N 2 molecules and significantly lower N 2 concentration compared to the surrounding water molecules. Herein, NbO 2 nanoparticles are demonstrated as an efficient NRR electrocatalyst with significantly improved electrochemical performances. Compared to Nb 2 O 5 with a similar crystal structure unit but different linkage, the Nb 4+ cation not only provides empty d‐orbitals for strong N 2 adsorption, but also a single d‐electron to further enable back donation to activate the NN triple bond. As a result, the NbO 2 nanoparticles present an outstanding ammonia production rate of 11.6 µg h −1 mg cat. −1 at −0.65 V versus reversible hydrogen electrode (RHE) and an excellent electrochemical stability, significantly higher than those of the Nb 2 O 5 nanorods under similar conditions. More importantly, a peak faradaic efficiency of ammonia production of 32% is obtained for NbO 2 at −0.60 V versus RHE, which is one of the highest reported NRR faradaic efficiencies to date.

Natural bond orbital

Ammonia production

Reversible hydrogen electrode

Nanorod

10.1002/smtd.201800386

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Citations (123)

Enhanced N-doping in mesoporous carbon for efficient electrocatalytic CO2 conversion

Nano Research (2019)

Min Kuang Anxiang Guan Zhengxiang Gu Peng Han Linping Qian

Carbon fibers

10.1007/s12274-019-2396-6

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Citations (111)

Stray current-induced corrosion in the electrified rail transport system

Elsevier eBooks (2023)

Guofu Qiao Peng Han Bingbing Guo Jinping Ou

Stray voltage

Transport system

10.1016/b978-0-12-819548-2.00003-2

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Citations (0)

Opto-thermionic refrigeration of semiconductor heterostructure

Acta Physica Sinica (2005)

Peng Han Jin Kui-Juan Zhou Yue-Liang Qingli Zhou Xu Wang

Numerical method has been used to analyze the opto-thermionic refrigeration proc ess of semiconductor heterostructure. Based on the drift-diffusion model, curren t continuity equation and Poisson equation are employed to calculate the distrib ution of carriers, the radiative recombination rate and the Auger recombination rate of the semiconductor. In addition, we have calculated the effect of the cha nging of barrier height and the doping density on the refrigeration rate. Thus t he optimum conditions of opto-thermionic refrigeration have been obtained based on these results. This work is of great significance for guiding the experiment research in the future.

Thermionic emission

Rate equation

10.7498/aps.54.4345

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Citations (0)

R&D Investment, Venture Capital and IPO Underpricing——An Empirical Study of IPO Companies in GEM

Management Review (2017)

Peng Han Shen Chunya

Social venture capital

Investment

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Citations (2)

In-situ growth of layered double hydroxides nanosheet arrays on graphite fiber as highly dispersed nanofillers for polymer coating with excellent anticorrosion performances

Journal of the Taiwan Institute of Chemical Engineers (2019)

Ang Liu Huiwen Tian Xiaodan Ju Wei Wang Peng Han

Nanosheet

Layered double hydroxides

Polyvinyl Butyral

10.1016/j.jtice.2019.09.006

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Citations (32)

Study on Intercalative Nanohybrid of Cordycepin in Layered Double Hydroxide

中国化学快报(英文版) (2003)

Peng Han

A novel negatively charged biomolecule-cordycepin has been intercalated within the gallery spaces of [Mg-Al-NO3]. Results of TEM, PXRD and FT-IR spectroscopy confirmed that cordycepin could be intercalated into [Mg-Al-NO3] interlayers as the charge-compensating species. Initial studies suggest that the new bioinorganic nanocomposite may be used as a novel inorganic reservoir or carrier of pharmaceutically active compounds.

Cordycepin

Bioinorganic chemistry

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Photocontrolled Self-Assembly and Disassembly of Block Ionomer Complex Vesicles: A Facile Approach toward Supramolecular Polymer Nanocontainers

Langmuir (2009)

Yapei Wang Peng Han Huaping Xu Zhiqiang Wang Xi Zhang

A new concept of designing a photocontrollable supramolecular polymer nanocontainer through the electrostatic association between an azobenzene-containing surfactant (AzoC10) and a double-hydrophilic block ionomer, poly(ethylene glycol)-b-poly(acrylic acid) (PEG43−PAA153), is described. Such a block ionomer complex can self-assemble in aqueous solution and form vesicle-like aggregates, which are composed of a poly(ethylene glycol) corona and a poly(acrylic acid) shell associated with azobenzene-containing surfactant. The photoisomerization of azobenzene moieties in the block ionomer complex can reversibly tune the amphiphilicity of the surfactants, inducing the disassembly of the vesicles. Such block ionomer complex vesicles are further evaluated as nanocontainers capable to encapsulate and release guest solutes on demand controlled by light irradiation. For example, the vesicles encapsulating the fluorescein sodium display clear spherical images observed by fluorescence microscopy. However, such fluorescence-marked images disappear after releasing the solute from the vesicles triggered by the UV light. Such novel materials are of both basic and practical significance, especially as prospective nanocontainers for cargo delivery.

Azobenzene

Ionomer

Acrylic acid

10.1021/la9023844

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Citations (198)

Theoretical study on the photodoping effects in La_1-x Sr _x MnO₃ /SrNb _y Ti_1-y O₃ p-n heterojunction

physica status solidi (a) (2009)

Leng Liao Kuijuan Jin Hui‐bin Lu Jie Qiu Peng Han

Abstract The dynamic process of photodoping effect in the heterojunction of La 0.9 Sr 0.1 MnO 3 /SrNb 0.01 Ti 0.99 O 3 is revealed theoretically. By solving Poisson Equation and time‐dependent carrier continuity equations, the evolutions of the carrier concentrations and the electrical potential are obtained self‐consistently. The calculated photovoltage evolution agrees well with the experimental data. The present results demonstrate that the large variation of carrier concentration mainly locates in the space‐charge region of the oxide heterojunction. It means that the photodoping effect mainly occurs in the space‐charge region of heterojunction. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Poisson's equation

Charge carrier

10.1002/pssa.200824406

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Citations (9)