Min Zhang

Tianjin University of Technology

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Peng Wang

Zhejiang University

Tong‐Bu Lu

Tianjin University of Technology

Yanfei Mu

Tianjin University of Technology

Jianjun Yang

Henan University

Zhaolei Liu

Tianjin University of Technology

Renzhi Li

National Institute of Hospital Administration

Guang‐Xing Dong

Tianjin University of Technology

Ke Su

Henan University of Technology

Qiuye Li

Henan University

Jiacheng Yao

Nanjing University of Science and Technology

Cooperative Institutions

Chinese Academy of Sciences

302

University of Chinese Academy of Sciences

137

Sichuan University

University of Science and Technology of China

Zhejiang University

Tianjin University of Technology

Central South University

Sun Yat-sen University

Tsinghua University

Huazhong University of Science and Technology

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Multiple-state interfacial electron injection competes with excited state relaxation and de-excitation to determine external quantum efficiencies of organic dye-sensitized solar cells

Physical Chemistry Chemical Physics (2014)

Min Zhang Lin Yang Cancan Yan Wentao Ma Peng Wang

A comprehensive description of the complicated dynamics of excited state evolution and charge transfer at the photochemical interface in dye-sensitized solar cells is crucial to understand the mechanism of converting solar photons to clean electricity, providing an informative basis for the future development of advanced organic materials. By selecting two triarylamine-based organic donor-acceptor dyes characteristic of the respective benzoic acid and cyanoacrylic acid anchors, in this paper we reveal stepwise excited state relaxations and multiple-state electron injections at a realistic titania/dye/electrolyte interface based upon ultrafast spectroscopic measurements and theoretical simulations. Density functional theory (DFT) and time-dependent DFT calculations show that the optically generated "hot" excited state of the dye molecules can undergo a significant conformational relaxation via multistage torsional motions, and thereby transform into an equilibrium quinonoid structure characteristic of a more planar conjugated backbone. A set of kinetic parameters derived from the target analysis of femtosecond transient absorption spectra have been utilized to estimate the electron injection yield, which is in good accord with the maximum of external quantum efficiencies.

Quantum yield

10.1039/c4cp03230f

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Citations (7)

Metal–oxygen hybridization in Agcluster/TiO2 for selective CO2 photoreduction to CH4

Chemical Engineering Journal (2024)

Chaogang Ban Yang Wang Jiangping Ma Yajie Feng Xiaoxing Wang

Methanation

10.1016/j.cej.2024.150845

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Citations (11)

Negative inductive effect enhances charge transfer driving in sulfonic acid functionalized graphitic carbon nitride with efficient visible-light photocatalytic performance

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION) (2022)

Min Zhang Yunfeng Li Wei Chang Wei Zhu Luohong Zhang

Graphitic carbon nitride

Sulfamic acid

Sulfonic acid

Photodegradation

Quantum Efficiency

Inductive effect

10.1016/s1872-2067(21)63872-x

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Citations (43)

The International Linear Collider: An RD Progress Report

Mike Harrison Min Zhang Marc Ross Perrine Royole-Degieux Kaoru Yokoya

International Linear Collider

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Constructing S-scheme heterojunction Cs3Bi2Br9/BiOBr via in-situ partial conversion to boost photocatalytic N2 fixation

Journal of Colloid and Interface Science (2024)

An-Di Ren Zhaolei Liu Su‐Xian Yuan Min Zhang Tong‐Bu Lu

10.1016/j.jcis.2024.09.188

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Lead-free halide perovskite hollow nanospheres to boost photocatalytic activity for CO2 reduction

Applied Catalysis B Environment and Energy (2023)

Yanfei Mu Jin-Shuang Zhao Liyuan Wu Ke‐Ying Tao Zhaolei Liu

Reactivity

10.1016/j.apcatb.2023.123024

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Citations (36)

Interbank Payment Flows and Interbank Offered Rates

SSRN Electronic Journal (2008)

Min Zhang Xianhua Wei S. Alex Yang Song Pan Min Chen

The paper explores the relationship between interbank payment flows in Chinese payment systems and the interbank offered rates in Chinese interbank markets. The empirical analysis shows that the changes of interbank payment flows have significant influences on both conditional means and conditional variances of the interbank offered rates, and with the gradual increase of the reserve deposit requirements, the correlation between interbank payment flows and interbank offered rates increases gradually.

Interbank lending market

10.2139/ssrn.1105333

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Citations (1)

W/Mo-polyoxometalate-derived electrocatalyst for high-efficiency nitrogen fixation

Chinese Chemical Letters (2022)

Hua‐Qing Yin Lulu Yang Hao Sun Hao Wang Yujie Wang

Polyoxometalate

10.1016/j.cclet.2022.03.060

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Citations (16)

Chromium(III) complexes bearing 2-benzazole-1,10-phenanthrolines: synthesis, molecular structures and ethylene oligomerization and polymerization

Dalton Transactions (2009)

Min Zhang Kefeng Wang Wen‐Hua Sun

The 2-benzazole-1,10-phenanthrolines and their chromium(III) complexes were synthesized and characterized by elemental and spectroscopic analyses as well as by single-crystal X-ray crystallography. X-Ray crystallographic analyses of C6 and C8 reveal an octahedral geometry around both chromium centers. The electronic spectra of the chromium complexes exhibit d–d transitions typically of a pseudo-octahedral coordinated d3 ion, falling into the region ν14A2g→4T2g 600–700 nm,ν24A2g→4T1g(F) 430–470 nm, and the 10Dq values between 15674 and 16529 cm−1. The variation of the heteroatoms (X = N, O, S) in benzazole group shows regular influence on the 10Dq values as 10Dq (O) > 10Dq (N) > 10Dq (S), which reflects the σ-donor/π-acceptor properties of these benzazole ligands. Upon activation with modified methylaluminoxane (MMAO), these complexes exhibited high activities for ethylene oligomerization (up to 7.36 × 106 g mol−1 (Cr) h−1) and ethylene polymerization (up to 1.28 × 106 g mol−1 (Cr) h−1). The effects of non-coordinated N, O or S heteroatoms in the ligands have been examined, and interestingly catalytic activities also strictly adhered to the trend O > N > S under various ethylene pressures. Reaction conditions significantly influenced the catalytic properties of the complexes.

Methylaluminoxane

Heteroatom

Octahedral molecular geometry

10.1039/b902361e

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Citations (41)

Heterogeneous Co(OH)₂ nanoplates/Co₃O₄ nanocubes enriched with oxygen vacancies enable efficient oxygen evolution reaction electrocatalysis

Nanoscale (2018)

Hui Xu Jingjing Wei Min Zhang Chaofan Liu Yukihide Shiraishi

The heterogeneous Co(OH)₂ nanoplate/Co₃O₄ nanocube hybrids with rich oxygen vacancies display excellent electrocatalytic activity and durability towards the OER, holding great potential for practical water oxidation.

Overpotential

Oxygen evolution

10.1039/c8nr05883k

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Citations (64)