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Managing Secondary Phase Lead Iodide in Hybrid Perovskites via Surface Reconstruction for High-Performance Perovskite Solar Cells with Robust Environmental Stability

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Angewandte Chemie 2023年第18期135卷

作者： Linfeng Ye Dr. Pengfei Guo Dr. Jie Su Kaiyuan Zhang Chen Liu Penghui Yang Wenhao Zhao Pengzhen Zhao Prof. Zhe Liu Prof. Jingjing Chang Dr. Qian Ye Prof. Hongqiang Wang State Key Laboratory of Solidification Processing Center for Nano Energy Materials School of Materials Science and Engineering Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU) Xi'an 710071 China Contribution: Investigation (lead) Methodology (lead) Writing - original draft (equal) Writing - review & editing (equal) Chongqing Innovation Center Northwestern Polytechnical University Chongqing 401135 China Contribution: Investigation (equal) Writing - original draft (equal) Writing - review & editing (equal) School of Microelectronics State Key Discipline Lab of Wide Band Gap Semiconductor Technology Shaanxi Joint Key Lab of Graphene Advanced Interdisciplinary Research Center for Flexible Electronics Xidian University Xi'an 710071 China

Rationally managing the secondary-phase excess lead iodide (PbI 2 ) in hybrid perovskite is of significance for pursuing high performance perovskite solar cells (PSCs), while the challenge remains on its conversion to a homogeneous layer that is robust stable against environmental stimuli. We herein demonstrate an effective strategy of surface reconstruction that converts the excess PbI 2 into a gradient lead sulfate-silica bi-layer, which substantially stabilizes the perovskite film and reduces interfacial charge transfer barrier in the PSCs device. The perovskite films with such bi-layer could bear harsh conditions such as soaking in water, light illumination at 70 % relative humidity, and the damp-thermal (85 °C and 30 % humidity) environment. The resulted PSCs deliver a champion efficiency up to 24.09 %, as well as remarkable environmental stability, e.g., retaining 78 % of their initial efficiency after 5500 h of shelf storage, and 82 % after 1000 h of operational stability testing.

关键词： Environmental Stability Hybrid Perovskite Lead Iodide Perovskite Solar Cells Surface Reconstruction

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Dynamic chloride ion adsorption on single iridium atom boosts seawater oxidation catalysis

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Nature communications 2024年第1期15卷 1973页

作者： Xinxuan Duan Qihao Sha Pengsong Li Tianshui Li Guotao Yang Wei Liu Ende Yu Daojin Zhou Jinjie Fang Wenxing Chen Yizhen Chen Lirong Zheng Jiangwen Liao Zeyu Wang Yaping Li Hongbin Yang Guoxin Zhang Zhongbin Zhuang Sung-Fu Hung Changfei Jing Jun Luo Lu Bai Juncai Dong Hai Xiao Wen Liu Yun Kuang Bin Liu Xiaoming Sun State Key Laboratory of Chemical Resource Engineering Beijing Advanced Innovation Center for Soft Matter Science and Engineering College of Chemistry Beijing University of Chemical Technology Beijing 100029 PR China. School of Chemistry Chemical Engineering and Biotechnology Nanyang Technological University Singapore 637459 Singapore. Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Colloid Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Sciences Beijing 100190 PR China. Ocean Hydrogen Energy R&D Center Research Institute of Tsinghua University in Shenzhen Shenzhen 518057 PR China. State Key Lab of Organic-Inorganic Composites College of Chemical Engineering Beijing University of Chemical Technology 100029 Beijing PR China. Energy & Catalysis Center School of Materials Science & Engineering Beijing Institute of Technology Beijing 100081 PR China. Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of China Hefei 230026 PR China. Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences 100049 Beijing PR China. Department of Chemistry Tsinghua University 100084 Beijing PR China. Department of Materials Science and Engineering City University of Hong Kong Hong Kong SAR 999077 PR China. College of Energy Shandong University of Science and Technology Tsingtao 266590 PR China. Beijing Key Laboratory of Energy Environmental Catalysis Beijing University of Chemical Technology 100029 Beijing PR China. Department of Applied Chemistry and Center for Emergent Functional Matter Science National Yang Ming Chiao Tung University Hsinchu 300 Taiwan. School of Materials Science and Engineering Tianjin Key Lab of Photoelectric Materials & Devices Tianjin University of Technology Tianjin 300384 PR China. ShenSi Lab Shenzhen Institute for Advanced Study University of Electronic Science and Technology of China Shen

Seawater electrolysis offers a renewable, scalable, and economic means for green hydrogen production. However, anode corrosion by Cl pose great challenges for its commercialization. Herein, different from conventional catalysts designed to repel Cl adsorption, we develop an atomic Ir catalyst on cobalt iron layered double hydroxide (Ir/CoFe-LDH) to tailor Cl adsorption and modulate the electronic structure of the Ir active center, thereby establishing a unique Ir-OH/Cl coordination for alkaline seawater electrolysis. Operando characterizations and theoretical calculations unveil the pivotal role of this coordination state to lower OER activation energy by a factor of 1.93. The Ir/CoFe-LDH exhibits a remarkable oxygen evolution reaction activity (202 mV overpotential and TOF = 7.46 O s) in 6 M NaOH+2.8 M NaCl, superior over Cl-free 6 M NaOH electrolyte (236 mV overpotential and TOF = 1.05 O s), with 100% catalytic selectivity and stability at high current densities (400-800 mA cm) for more than 1,000 h.

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Solvent Polarity-Induced Regulation of Cation Solvation Sheaths for High-Voltage Zinc-Based Batteries with a 1.94 V Discharge Platform

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Angewandte Chemie 2024年第6期137卷

作者： Xuting Jin Guobin Lai Xinyi Xiu Li Song Xiangyang Li Chunlong Dai Meng Li Zhonggui Quan Bin Tang Gonglei Shao Zhipan Zhang Feng Liu Liangti Qu Zhen Zhou Interdisciplinary Research Center for Sustainable Energy Science and Engineering (IRC4SE2) School of Chemical Engineering Zhengzhou University Zhengzhou 450001 P. R. China State Key Laboratory of Nonlinear Mechanics Institute of Mechanics Chinese Academy of Sciences Beijing 100190 P. R. China Henan Institute of Advanced Technology Zhengzhou University Zhengzhou 450001 P. R. China Key Laboratory of Cluster Science Ministry of Education of China Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 P. R. China College of Materials Science and Engineering Sichuan University Chengdu 610065 P. R. China Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of Chemistry Tsinghua University Beijing 100084 P. R. China

To address the challenge of low discharge platforms (<1.5 V) in aqueous zinc-based batteries, highly concentrated salts have been explored due to their wide electrochemical window (~3 V). However, these electrolytes mainly prevent hydrogen evolution and dendrite growth at the anode without significantly enhancing voltage performance. Herein we introduce an approach by adjusting solvent polarity to regulate cation solvation sheaths in hybrid electrolytes, reducing Zn/Zn 2+ oxidation potential and water activity. Through strong cation-water coordination and hydrogen bonding between dimethylsulfoxide and water, the designed electrolyte, at a low concentration, achieves a broader electrochemical window (4 V) than conventional concentrated electrolytes. Using this electrolyte, a Zn/Zn battery showed an impressive cycle life of 4340 cycles, while a Zn/lithium manganate battery delivered a high discharge platform of over 1.9 V with exceptional cycling stability. A Zn-based micro-battery with a polyvinyl alcohol-based hybrid electrolyte also achieved a record-high discharge platform of 1.94 V. This work presents a promising strategy for developing low-concentration electrolytes for high-performance sustainable energy storage.

关键词： Solvent polarity Regulation of cation solvation sheaths Low concentration High voltage Zinc-based batteries

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Frontispiz: Tumor‐Microenvironment‐Induced Degradation of Ultrathin Gadolinium Oxide Nanoscrolls for Magnetic‐Resonance‐Imaging‐Monitored, Activatable Cancer Chemotherapy

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Angewandte Chemie 2019年第21期131卷

作者： Miaomiao Wu Yumeng Xue Na Li Hongyang Zhao Bo Lei Min Wang Jianwei Wang Meng Luo Chao Zhang Yaping Du Chunhua Yan Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China Tianjin Key Lab for Rare Earth Materials and Applications Centre for Rare Earth and Inorganic Functional Materials School of Materials Science and Engineering & National Institute for Advanced Materials Nankai University Tianjin 300350 China Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and Applications PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry College of Chemistry and Molecular Engineering Peking University Beijing 100871 China College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China

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Frontispiece: Tumor-Microenvironment-Induced Degradation of Ultrathin Gadolinium Oxide Nanoscrolls for Magnetic-Resonance-Imaging-Monitored, Activatable Cancer Chemotherapy

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Angewandte Chemie International Edition 2019年第21期58卷

作者： Miaomiao Wu Yumeng Xue Na Li Hongyang Zhao Prof. Bo Lei Min Wang Jianwei Wang Meng Luo Chao Zhang Prof. Yaping Du Prof. Chunhua Yan Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China Tianjin Key Lab for Rare Earth Materials and Applications Centre for Rare Earth and Inorganic Functional Materials School of Materials Science and Engineering & National Institute for Advanced Materials Nankai University Tianjin 300350 China Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and Applications PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry College of Chemistry and Molecular Engineering Peking University Beijing 100871 China College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 China

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Tumor‐Microenvironment‐Induced Degradation of Ultrathin Gadolinium Oxide Nanoscrolls for Magnetic‐Resonance‐Imaging‐Monitored, Activatable Cancer Chemotherapy

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Angewandte Chemie 2019年第21期131卷

The development of biodegradable inorganic nanoparticles with a tumor microenvironment‐activated therapeutic mode of action is urgently needed for precision cancer medicine. Herein, the synthesis of ultrathin lanthanide nanoscrolls (Gd 2 O 3 NSs) is reported, which biodegrade upon encountering the tumor microenvironment. The Gd 2 O 3 NSs showed highly controlled magnetic properties, which enabled their high‐resolution magnetic resonance imaging (MRI). Importantly, Gd 2 O 3 NSs degrade in a pH‐responsive manner and selectively penetrate tumor tissue, enabling the targeted release of anti‐cancer drugs. Gd 2 O 3 NSs can be efficiently loaded with an anti‐cancer drug (DOX, 80 %) and significantly inhibit tumor growth with negligible cellular and tissue toxicity both in vitro and in vivo. This study may provide a novel strategy to design tumor microenvironment‐responsive inorganic nanomaterials for biocompatible bioimaging and biodegradation‐enhanced cancer therapy.

关键词： Bioimaging Gadoliniumoxid Krebstherapie Lanthanoide Ultradünne Strukturen

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‘Corrigendum to “Biologically excretable AIE nanoparticles wear tumor cell-derived “exosome caps” for efficient NIR-II fluorescence imaging-guided photothermal therapy” [Nano Today 41 (2021) 101333]’

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Nano Today 2022年 44卷

作者： Yirun Li Xiaoxiao Fan Yuanyuan Li Liang Zhu Runze Chen Yiyin Zhang Huwei Ni Qiming Xia Zhe Feng Ben Zhong Tang Jun Qian Hui Lin Department of General Surgery Sir Run Run Shaw Hospital School of Medicine Zhejiang University Hangzhou 310020 China State Key Laboratory of Modern Optical Instrumentations Centre for Optical and Electromagnetic Research College of Optical Science and Engineering International Research Center for Advanced Photonics Zhejiang University Hangzhou 310058 China College of Veterinary Medicine Jilin University Changchun 130062 China Interdisciplinary Institute of Neuroscience and Technology (ZIINT) College of Biomedical Engineering and Instrument Science Zhejiang University Hangzhou 310020 China Shenzhen Institute of Aggregate Science and Technology School of Science and Engineering The Chinese University of Hong Kong Shenzhen Guangdong 518172 China College of Biomedical Engineering and Instrument Science Zhejiang University Hangzhou 310058 China Zhejiang Engineering Research Center of Cognitive Healthcare，Sir Run Run Shaw Hospital，School of Medicine Zhejiang University 310020 China

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Precise Control of Selenium Functionalization in Non-Fullerene Acceptors Enabling High-Efficiency Organic Solar Cells

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Angewandte Chemie 2022年第46期134卷

作者： Dr. Jianquan Zhang Siwei Luo Heng Zhao Xiaoyun Xu Xinhui Zou Ao Shang Jiaen Liang Dr. Fujin Bai Dr. Yuzhong Chen Prof. Kam Sing Wong Prof. Zaifei Ma Prof. Wei Ma Prof. Huawei Hu Prof. Yiwang Chen Prof. He Yan State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai 201620 China Department of Chemistry Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials Energy Institute and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong 999077 China State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 Shannxi Province China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-dimension Materials College of Materials Science and Engineering Donghua University Shanghai 201620 China Department of Physics Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong 999077 China Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education/National Engineering Research Center for Carbohydrate Synthesis Jiangxi Normal University 99 Ziyang Avenue Nanchang 330022 China College of Chemistry/Institute of Polymers and Energy Chemistry (IPEC) Nanchang University 999 Xuefu Avenue Nanchang 330031 Jiangxi Province China Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices South China University of Technology Guangzhou 510640 Guangdong Province China

Central π-core engineering of non-fullerene small molecule acceptors (NF-SMAs) is effective in boosting the performance of organic solar cells (OSCs). Especially, selenium (Se) functionalization of NF-SMAs is considered a promising strategy but the structure-performance relationship remains unclear. Here, we synthesize two isomeric alkylphenyl-substituted selenopheno[3,2-b]thiophene-based NF-SMAs named mPh4F-TS and mPh4F-ST with different substitution positions, and contrast them with the thieno[3,2-b]thiophene-based analogue, mPh4F-TT. When placing Se atoms at the outer positions of the π-core, mPh4F-TS shows the most red-shifted absorption and compact molecular stacking. The PM6 : mPh4F-TS devices exhibit excellent absorption, high charge carrier mobility, and reduced energy loss. Consequently, PM6 : mPh4F-TS achieves more balanced photovoltaic parameters and yields an efficiency of 18.05 %, which highlights that precisely manipulating selenium functionalization is a practicable way toward high-efficiency OSCs.

关键词： Acceptor Core engineering Non-Fullerene Selenium functionalization Solar Cell

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A Self‐Healing Aqueous Lithium‐Ion Battery

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Angewandte Chemie 2016年第46期128卷

作者： Yang Zhao Ye Zhang Hao Sun Xiaoli Dong Jingyu Cao Lie Wang Yifan Xu Jing Ren Yunil Hwang In Hyuk Son Xianliang Huang Yonggang Wang Huisheng Peng State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science and Laboratory of Advanced Materials Fudan University Shanghai 200438 China Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New Energy iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Fudan University Shanghai 200438 China Energy Materials Lab Materials Research Center Samsung Advanced Institute of Technology Samsung Electronics Co. LTD. 130 Samsung-ro Suwon-si Gyeonggi-do 443803 South Korea Samsung R&D Institute China Beijing 100028 China

Flexible lithium‐ion batteries are critical for the next‐generation electronics. However, during the practical application, they may break under deformations such as twisting and cutting, causing their failure to work or even serious safety problems. A new family of all‐solid‐state and flexible aqueous lithium ion batteries that can self‐heal after breaking has been created by designing aligned carbon nanotube sheets loaded with LiMn 2 O 4 and LiTi 2 (PO 4 ) 3 nanoparticles on a self‐healing polymer substrate as electrodes, and a new kind of lithium sulfate/sodium carboxymethylcellulose serves as both gel electrolyte and separator. The specific capacity, rate capability, and cycling performance can be well maintained after repeated cutting and self‐healing. These self‐healing batteries are demonstrated to be promising for wearable devices.

关键词： Flexible Elektronik Kohlenstoffnanoröhren Lithiumionenbatterien Nanotechnologie Selbstheilende Polymere

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Zinc Metal Batteries: Stratified Zinc-Binding Strategy toward Prolonged Cycling and Flexibility of Aqueous Fibrous Zinc Metal Batteries (Adv. Energy Mater. 16/2021)

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advanced Energy Materials 2021年第16期11卷

作者： Zhaoxi Shen Lei Luo Chaowei Li Jun Pu Junpeng Xie Litong Wang Zhe Huai Ziyi Dai Yagang Yao Guo Hong Institute of Applied Physics and Materials Engineering University of Macau Avenida da Universidade Taipa Macau SAR 999078 China State Key Laboratory of Precision Spectroscopy School of Physics and Electronic Science East China Normal University Shanghai 200062 China National Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials Suzhou Institute of Nano-Tech and Nano-Bionics Nanchang Chinese Academy of Sciences Nanchang 330200 China Department of Physics and Chemistry Faculty of Science and Technology University of Macau Avenida da Universidade Taipa Macau SAR 999078 China

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