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173. Lattice site–dependent metal leaching in perovskites toward a honeycomb-like water oxidation catalyst

Author

Chen, Yubo, Sun, Yuanmiao, Wang, Maoyu, Wang, Jingxian, Li, Haiyan, Xi, Shibo, Wei, Chao, Xi, Pinxian, Sterbinsky, George E, Freeland, John W, Fisher, Adrian C, Ager, Joel W, Feng, Zhenxing, and Xu, Zhichuan J

Subjects
Chemical Sciences, Physical Chemistry
Abstract

Metal leaching during water oxidation has been typically observed in conjunction with surface reconstruction on perovskite oxide catalysts, but the role of metal leaching at each geometric site has not been distinguished. Here, we manipulate the occurrence and process of surface reconstruction in two model ABO3 perovskites, i.e., SrSc0.5Ir0.5O3 and SrCo0.5Ir0.5O3, which allow us to evaluate the structure and activity evolution step by step. The occurrence and order of leaching of Sr (A-site) and Sc/Co (B-site) were controlled by tailoring the thermodynamic stability of B-site. Sr leaching from A-site mainly generates more electrochemical surface area for the reaction, and additional leaching of Sc/Co from B-site triggers the formation of a honeycomb-like IrOxHy phase with a notable increase in intrinsic activity. A thorough surface reconstruction with dual-site metal leaching induces an activity improvement by approximately two orders of magnitude, which makes the reconstructed SrCo0.5Ir0.5O3 among the best for water oxidation in acid.

Published
2021

174. Health State Assessment of Large Complex Equipment Based on Modified ER Algorithm

Author

Li, HaiYan, Li, WenLi, Liu, SongBin, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Haddar, Mohamed, Editorial Board Member, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Yadav, Sanjay, editor, Kumar, Harish, editor, Wan, Meher, editor, Arora, Pawan Kumar, editor, and Yusof, Yusri, editor

Published
2023
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175. DPLink: Link Prediction Method Based on Local Structure of Drug-Protein Network

Author

Zhang, Bofeng, Li, Haiyan, Lv, Hehe, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, Qian, Zhihong, editor, Jabbar, M.A., editor, Cheung, Simon K. S., editor, and Li, Xiaolong, editor

Published
2023
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176. Multiliteracies in Rural Communities: The 'Revuelto y Mezclado' of Home and Community Literacy Practices of Midwestern Emergent Bilingual Families

Author

Morita-Mullaney, Trish, Li, Haiyan, and Renn, Jennifer

Abstract

Families moving to new settings mix and blend languages as they are influenced and shaped by their new social contexts and the languages around them. This unique phenomenon has been described as language contact or linguistic transformation (Fishman, 2001; García, 2009). Little research, however, has been conducted related to the dynamic languages and literacies that are created when families possess multiple linguistic resources. This study intends to address this gap by examining the multilingual multiliteracies of families' households in two rural Indiana communities, bringing more texture to our current understanding of the "revuelto y mezclado" among rural multilingual families. [This study was made possible by the United States Department of Education's Office for English Language Acquisition's National Professional Development grant.]

Published
2019

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