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13. Luo Yu, Jiayong Xiao, Chuqiang Huang, Jianqing Zhou, Ming Qiu, Ying Yu, Zhifeng Ren, Ching-Wu Chu, and Jimmy C. Yu, “High-performance seawater oxidation by a homogeneous multimetallic layered double hydroxide electrocatalyst”, PNAS 119, e2202382119 (2022).

12. Chen Chen, Wenhua Xue, Shan Li, Zongwei Zhang, Xiaofang Li, Xinyu Wang, Yijie Liu, Jiehe Sui, Xingjun Liu, Zhifeng Ren, Feng Cao, Yumei Wang, and Qian Zhang, “Zintl Phase Eu2ZnSb2: A New Promising Thermoelectric Material with Ultralow Thermal Conductivity”, PNAS 116, 2831-2836 (2019).

11. Zihang Liu, Jifeng Sun, Jun Mao, Hangtian Zhu, Wuyang Ren, Jingchao Zhou, Zhiming Wang, David J. Singh, Jiehe Sui, Ching-Wu Chu, and Zhifeng Ren, “Phase transition temperature suppression to achieve cubic GeTe and high thermoelectric performance by Bi and Mn codoping”, PNAS 115, 5332-5337 (2018).

10. Haiqing Zhou, Fang Yu, Jingying Sun, Ran He, Shuo Chena, Ching-Wu Chua, and Zhifeng Ren, “A catalyst for extremely efficient oxygen evolution reaction”, PNAS 114, 5607-5611 (2017).

9. Jun Mao, Jing Shuai, Shaowei Song, Yixuan Wu, Rebecca Dally, Jiawei Zhou, Zihang Liu, Jifeng Sun, Qinyong Zhang, Clarina dela Cruz, Stephen Wilson, Yanzhong Pei, David J. Singh, Gang Chen, Ching-Wu Chu, and Zhifeng Ren, “Manipulation of Ionized Impurity Scattering for Achieving High Thermoelectric Performance in n-type Mg3Sb2-Based Materials”, PNAS 114, 10548-10553 (2017).

8. Dan Luo, Feng Wang, Jingyi Zhu, Feng Cao, Yuan Liu, Xiaogang Li, Richard C. Willson, Zhaozhong Yang, Ching-Wu Chu, and Zhifeng Ren, “Nanofluid of graphene-based amphiphilic Janus nanosheets for tertiary or enhanced oil recovery: High performance at low concentration”, PNAS 113, 7711-7716 (2016).

7. Jing Shuai, Huiyuan Geng, Yucheng Lan, Zhuan Zhu, Chao Wang, Zihang Liu, Jiming Bao, Ching-Wu Chu, Jiehe Sui, and Zhifeng Ren, “Higher thermoelectric performance of Zintl phases (Eu0.5Yb0.5)1-xCaxMg2Bi2 by band engineering and strain fluctuation”, PNAS 113, E4125-E4132 (2016).

6. Ran He, Daniel Kraemer, Jun Mao, Qing Jie, Yucheng Lan, Chunhua Li, Jing Shuai, Hee Seok Kim, David Broido, Gang Chen, and Zhifeng Ren, “Achieving high power factor and output power density in p-type half-Heuslers Nb1-xTixFeSb”, PNAS 113, 13576-13581 (2016).

5. Weishu Liu, Hee Seok Kim, Shuo Chen, Qing Jie, Bing Lv, Mengliang Yao, Zhengsong Ren, Cyril P. Opeil, Stephen Wilson, Ching-Wu Chu, and Zhifeng Ren, “New n-type thermoelectric material Mg2Sn0.75Ge0.25 for high power generation”, PNAS 112, 3269-3274 (2015).

4. Hee Seok Kim, Weishu Liu, Gang Chen, Ching-Wu Chu, and Zhifeng Ren, “Relationship between Thermoelectric Figure of Merit and Energy Conversion Efficiency”, PNAS 112, 8205-8210 (2015).

3. Chuan Fei Guo, Qihan Liu, Guohui Wang, Yecheng Wang, Zhengzheng Shi, Zhigang Suo, Ching-Wu Chua, and Zhifeng Ren, “Fatigue-free, superstretchable, transparent, and biocompatible metal electrodes”, PNAS 112, 12332-12337 (2015).

2. Zhen Yang, Liangzi Deng, Yucheng Lan, Xiaoliu Zhang, Zhonghong Gao, Ching-Wu Chu, Dong Cai, and Zhifeng Ren, “Molecular extraction in single live cells by sneaking in and out magnetic nanomaterials”, PNAS 111, 10966-10971 (2014).

1. Qian Zhang, Bolin Liao, Yucheng Lan, Kevin Lukas, Weishu Liu,Keivan Esfarjani, Cyril Opeil, David Broido, Gang Chen, and Zhifeng Ren, “High thermoelectric performance by resonant doping of indium in nanostructured SnTe”, PNAS110, 13261-13266 (2013).