Decoupling the air sensitivity of Na-layered oxides-Reference-Cited by-同舟云学术

Decoupling the air sensitivity of Na-layered oxides

Published:2024-08-16 Issue:6710 Volume:385 Page:744-752
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Yang Yang¹²^ORCID,Wang Zaifa³^ORCID,Du Congcong³^ORCID,Wang Bowen¹²^ORCID,Li Xinyan¹²^ORCID,Wu Siyuan¹²,Li Xiaowei⁴,Zhang Xiao¹²,Wang Xubin¹²^ORCID,Niu Yaoshen¹^ORCID,Ding Feixiang¹^ORCID,Rong Xiaohui⁵^ORCID,Lu Yaxiang¹⁶^ORCID,Zhang Nian⁷^ORCID,Xu Juping⁸,Xiao Ruijuan¹^ORCID,Zhang Qinghua¹^ORCID,Wang Xuefeng¹^ORCID,Yin Wen⁸^ORCID,Zhao Junmei⁴^ORCID,Chen Liquan¹^ORCID,Huang Jianyu³^ORCID,Hu Yong-Sheng¹²⁶^ORCID

Affiliation:

1. Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.

2. College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China.

3. Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066000, China.

4. Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.

5. Yangtze River Delta Physics Research Center Co. Ltd., Liyang 213300, China.

6. Huairou Division, Institute of Physics, Chinese Academy of Sciences, Beijing 101400, China.

7. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences, Shanghai 200050, China.

8. Spallation Neutron Source Science Center (SNSSC), Dongguan 523803, China.

Abstract

Air sensitivity remains a substantial barrier to the commercialization of sodium (Na)–layered oxides (NLOs). This problem has puzzled the community for decades because of the complexity of interactions between air components and their impact on both bulk and surfaces of NLOs. We show here that water vapor plays a pivotal role in initiating destructive acid and oxidative degradations of NLOs only when coupled with carbon dioxide or oxygen, respectively. Quantification analysis revealed that reducing the defined cation competition coefficient (η), which integrates the effects of ionic potential and sodium content, and increasing the particle size can enhance the resistance to acid attack, whereas using high-potential redox couples can eliminate oxidative degradation. These findings elucidate the underlying air deterioration mechanisms and rationalize the design of air-stable NLOs.

Publisher

American Association for the Advancement of Science (AAAS)

Link

https://www.science.org/doi/pdf/10.1126/science.adm9223

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