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Your search keyword '"Xiaoxi Guo"' showing total 2 results
Start Over Author "Xiaoxi Guo" Journal acs catalysis
2 results on '"Xiaoxi Guo"'

1. High-Speed Atomic Force Microscopy Reveals Factors Affecting the Processivity of Chitinases during Interfacial Enzymatic Hydrolysis of Crystalline Chitin

Author

Toshio Ando, Mingbo Qu, Shaopeng Sun, Liu Yuansheng, Qing Yang, Xiaoxi Guo, Takahiro Watanabe-Nakayama, and Kenichi Umeda

Subjects
chemistry.chemical_classification, biology, General Chemistry, Processivity, Polysaccharide, Catalysis, chemistry.chemical_compound, Enzyme, chemistry, Chemical engineering, Chitin, Enzymatic hydrolysis, Chitinase, biology.protein, Glycoside hydrolase, sense organs
Abstract

Enzymatic hydrolysis of crystalline chitin is a solid–liquid interfacial catalysis process that is highly dependent on the enzymes’ processivity, namely, the number of catalytic cycles consecutivel...

Published
2020
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2. Ni(OH)2 Nanoparticles Embedded in Conductive Microrod Array: An Efficient and Durable Electrocatalyst for Alkaline Oxygen Evolution Reaction

Author

Xiaoxi Guo, Xiaoping Zhang, Huitong Du, Fengli Qu, and Rongmei Kong

Subjects
Materials science, Oxygen evolution, Nanoparticle, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, Electrochemistry, Electrocatalyst, 01 natural sciences, Tetracyanoquinodimethane, Catalysis, Anode oxidation, 0104 chemical sciences, chemistry.chemical_compound, Chemical engineering, chemistry, 0210 nano-technology, Electrical conductor
Abstract

It is extremely important to develop earth-abundant and stable oxygen evolution reaction (OER) electrocatalysts with excellent performance in alkaline media. In this work, we describe the in situ electrochemical conversion of microrod array of Ni(tetracyanoquinodimethane)2, Ni(TCNQ)2, into Ni(OH)2 nanoparticles embedded in a conductive TCNQ microrod array via anode oxidation. Such Ni(OH)2-TCNQ microarray shows OER activity needing overpotentials of 322 and 354 mV to attain current densities of 50 and 100 mA cm–2 in 1.0 M KOH, respectively. It is also extremely durable with its electrocatalytic performance being kept for at least 20 h. This work points out a stimulating approach to explore the utilization of TCNQ array as a conductive matrix for electrochemical applications.

Published
2017
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