Article
Chemistry, Physical
Zenghui Bi, Hua Zhang, Xue Zhao, Yuwen Wang, Fang Tan, Songqing Chen, Ligang Feng, Yingtang Zhou, Xin Ma, Zhi Su, Xinzhong Wang, Thomas Wagberg, Guangzhi Hu
Summary: In this study, a nitrogen-doped carbon material with a micro-meso-macroporous structure doped with La was prepared and its La-O/N-C active sites were confirmed by experimental results. The material exhibited low half-wave potential and overpotential for both ORR and OER reactions. A zinc-air battery with this material as the air cathode showed high power density and stable charge-discharge performance. Density functional theory calculations indicated that LaO2N4 sites had the lowest activation free energy and the most easily desorbed oxygen capacity. This study provides important insights for the design of efficient and durable alternatives to precious-metal-based catalysts.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Chuang Fu, Xueqiang Qi, Lei Zhao, Tingting Yang, Qian Xue, Zhaozhao Zhu, Pei Xiong, Jinxia Jiang, Xuguang An, Haiyuan Chen, Jun Song Chen, Andreu Cabot, Rui Wu
Summary: A dual-atom catalyst, Zn/Fe-NC, is synthesized through pyrolysis of PVP coated on Fe-doped ZIF-8, and it shows outstanding activity for oxygen reduction reaction (ORR) with high half-wave potential, excellent stability, and resistance to methanol. Density functional theory calculation reveals that the ORR overpotential is only 0.282 V, and the down-shifted d band center of active Fe affected by Zn alleviates the adsorption of OH* intermediates, thus promoting the overall ORR electrocatalytic activity. Moreover, zinc-air batteries with Zn/Fe-NC catalyst as oxygen cathode demonstrate remarkable power density and specific capacity for practical applications.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Jie Wang, Aimin Wu, Zhiwen Qiu, Aikui Li, Wenjun Qin, Hao Huang
Summary: The development and design of low-cost and efficient cathode catalysts for high electrochemical performance aluminum-air batteries is of great significance. Here, nitrogen-doped carbon nanotube supported Fe/Ce bimetallic catalysts were synthesized by chemical vapor deposition. The Fe/Ce-NCNT-0.2 catalyst showed excellent oxygen reduction reaction ability in alkaline media and the assembled Al-air battery exhibited high performance, indicating great commercial potential.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Tayyaba Najam, Syed Shoaib Ahmad Shah, Muhammad Sufyan Javed, Po-Tuan Chen, Chenghao Chuang, Ali Saad, Zhaoqi Song, Wei Liu, Xingke Cai
Summary: Single-atom catalysts with a ZnN3P configuration were synthesized and used as catalysts. The ZnCo-PNC catalyst showed excellent performance for oxygen reduction reaction in alkaline medium and demonstrated respectable performance for zinc-air battery applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Yuying Jiao, Xiaokang Gu, Pengbo Zhai, Yi Wei, Wei Liu, Qian Chen, Zhilin Yang, Jinghan Zuo, Lei Wang, Tengfei Xu, Yongji Gong
Summary: In this work, Fe-N-C single-atom catalysts (SACs) anchored on three-dimensional open-pore carbon networks (3D SAFe) were fabricated using a NaCl template-assisted in situ pyrolysis technique. The 3D SAFe catalyst exhibited ultrahigh activity and durability, resulting in ZABs with excellent performance.
Article
Engineering, Environmental
Chen Li, Min Yuan, Yang Liu, Haikuo Lan, Yuting Chen, Zhenjiang Li, Kang Liu, Lei Wang
Summary: In this study, a unique method for manufacturing a defect-rich Fe single-atom catalyst loaded on a carbon nanosheets carrier was proposed. The catalyst showed exceptional activity and electron/proton transfer ability in the oxygen reduction reaction. It also exhibited excellent performance in liquid zinc-air batteries and flexible solid-state batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Rui Sui, Xuejiang Zhang, Xingdong Wang, Xinyu Wang, Jiajing Pei, Yufeng Zhang, Xuerui Liu, Wenxing Chen, Wei Zhu, Zhongbin Zhuang
Summary: In this study, an Ag-based single atom catalyst, Ag-1-h-NPCISC, with heteroatom coordination was synthesized and shown to greatly improve the performance of oxygen reduction reaction (ORR). A zinc-air battery with Ag-1-h-NPCISC as the air electrode achieved a high peak power density, attributed to the advantages of the hollow structure, single atom metal center, and heteroatom coordination environment. Density functional theory (DFT) calculations revealed that Ag-1-h-NPCISC lowered the energy barrier for the formation of OOH*, improving the ORR activity. This work demonstrates the promising potential of well manipulated Ag-based single atom catalysts in electrocatalysis.
Article
Chemistry, Physical
Mengxia Shen, Jun Liu, Ji Li, Chao Duan, Chuanyin Xiong, Wei Zhao, Lei Dai, Qianyu Wang, Hao Yang, Yonghao Ni
Summary: Fe single atoms anchored on N-enriched porous submicron carbon spheres (FeSA/ N-PSCS) were fabricated by a N-rich heterocycle regulated supramolecular coordination self-assembly strategy, exhibiting ultra-high N-dopant content and optimized FeNx configuration, leading to the highest level of catalytic activity in oxygen reduction reaction (ORR).
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Yunyan Wu, Caichao Ye, Lei Yu, Yifan Liu, Jiangfeng Huang, Jiabao Bi, Liang Xue, Jingwen Sun, Juan Yang, Wenqing Zhang, Xin Wang, Pan Xiong, Junwu Zhu
Summary: This study reports a soft template-directed synthesis method for Fe-Co DSACs. Fe and Co single atoms are stabilized on 2D carbon nanosheets separately to form a FeN4S1/CoN4S1 configuration, which optimizes the catalytic activity for oxygen reduction reaction. The Fe-Co DSAC exhibits outstanding performance in oxygen reduction reaction and Zn-air batteries, outperforming monometallic Fe and Co SACs.
ENERGY STORAGE MATERIALS
(2022)
Article
Materials Science, Composites
Xiannong Tang, Yonggan Wu, Weijuan Zhai, Tinglin Chu, Longbin Li, Bingyu Huang, Ting Hu, Kai Yuan, Yiwang Chen
Summary: This study reports a self-assembled method to improve the efficiency of zinc-air batteries by preparing nanocomposite electrocatalysts with high activity. The catalyst exhibits superior performance in oxygen reduction reactions and has an advantage of methanol tolerance over traditional platinum catalysts. The combination of zinc-air batteries with this catalyst shows better performance in terms of discharge power density, specific capacitance, and cyclic stability compared to platinum catalysts.
COMPOSITES COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Liang Gao, Shengming Chang, Zhongyi Zhang
Summary: The novel composite catalyst CoFeP@C with highly efficient bifunctional performance for catalyzing OER and ORR is ideal for rechargeable Zn-air batteries. The liquid Zn-air battery shows a large power density and stable charge and discharge cycles, while the solid-state Zn-air battery demonstrates stable operation for a duration of time. This work has advanced the understanding of synergistic catalysis and paved the way for high-performance bifunctional catalysts.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Guangying Zhang, Xu Liu, Peng Yu, Di Shen, Bowen Liu, Qiwen Pan, Lei Wang, Honggang Fu
Summary: A zinc-mediated synthesis strategy was used to prepare N-doped graphitic porous carbon encapsulated Fe3C nanoparticles and atomically dispersed Fe-N-x moieties from biomass coconut shell. The resulting structure exhibited excellent ORR activity and stability, and could be used in zinc-air batteries for long-lasting charge-discharge operation and overall water splitting.
CHINESE CHEMICAL LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Sanshuang Gao, Tianwei Wang, Mengmeng Jin, Shusheng Zhang, Qian Liu, Guangzhi Hu, Hui Yang, Jun Luo, Xijun Liu
Summary: In this study, a bifunctional catalyst for CO2RR and ORR reactions in aqueous Zn-air batteries (ZAB) was developed. The catalyst, consisting of atomically dispersed niobium anchored onto N-doped ordered mesoporous carbon (Nb-N-C), exhibited high activity for CO2RR, ORR, and ZAB, thanks to the high Nb atom-utilization efficiency and ordered mesoporous structure. Furthermore, the self-powered CO2 electrolysis system showed promising performance with continuous CO2 conversion.
SCIENCE CHINA-MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Xu Liu, Guangying Zhang, Lei Wang, Honggang Fu
Summary: This review discusses the crucial oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) mechanisms in zinc-air batteries (ZABs) and the importance of developing efficient and stable bifunctional ORR/OER catalysts to enhance ZAB performance. Additionally, it summarizes the improvements in energy efficiency, stability, and environmental adaptability of ZAB by introducing additional reactions and altering the OER pathway.
Article
Chemistry, Multidisciplinary
Qi Yang, Rumeng Liu, Yanan Pan, Zheng Cao, Jiabao Zuo, Fan Qiu, Jian Yu, Haiou Song, Zhiwen Ye, Shupeng Zhang
Summary: A novel electrocatalyst, Fe3C-FeSA@3DCN, with the coexistence of Fe3C nanoparticles and Fe single atoms (FeSA) in a three-dimensional conductive network (3DCN) is prepared. It exhibits better catalytic activity and stability than Pt/C catalysts in the oxygen reduction reaction (ORR) process. Furthermore, it shows high performance in aqueous and solid-state Zn-air batteries (ZABs) with a long service life and the ability to perform capacitive deionization for different ions.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Shichao Ding, Jordan Alysia Barr, Zhaoyuan Lyu, Fangyu Zhang, Maoyu Wang, Peter Tieu, Xin Li, Mark H. Engelhard, Zhenxing Feng, Scott P. Beckman, Xiaoqing Pan, Jin-Cheng Li, Dan Du, Yuehe Lin
Summary: The introduction of phosphorus into Fe-N-C single-atom catalysts enhances the peroxidase-like activity, showing excellent selectivity and stability. A 1D carbon nanowire catalyst with enriched Fe-N-4 active sites and phosphorus doping is designed and synthesized, and it is employed in an enzyme cascade platform for highly sensitive colorimetric detection of the neurotransmitter acetylcholine.
ADVANCED MATERIALS
(2023)
Article
Agriculture, Multidisciplinary
Hongxin Xie, Xue Tian, Lina He, Jincheng Li, Liwei Cui, Xin Cong, Bochong Tang, Yi Zhang, Zhiying Guo, Aiyu Zhou, Dongliang Chen, Liming Wang, Jiating Zhao, Yong-Liang Yu, Bai Li, Yu-Feng Li
Summary: Spatial metallomics was used to visualize the distribution and speciation of selenium in a single seed of Cardamine violifolia in Enshi, China. The study found that methylated selenium species were mainly located in the seed coat, providing the first visual evidence of their in situ distribution in C. violifolia seeds. This research deepens our understanding of selenium tolerance in C. violifolia and could have implications for studying tolerance of heavy metals/metalloids in other hyperaccumulators.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Chemistry, Physical
Liye Zhu, Hong Zhong, Dan Du, Tao Li, Hoai Nguyen, Scott P. Beckman, Wentao Xu, Jin-Cheng Li, Nan Cheng, Yuehe Lin
Summary: Single-atom catalysts have attracted attention in cancer therapy due to their high catalytic activity and stability. In this study, Fe-N-5/GN SAC was designed and synthesized, which exhibited exceptional peroxidase-like catalytic activity and could kill lung cancer cells by decomposing H2O2 under an acidic microenvironment.
Article
Chemistry, Physical
Hao Hu, Yu Meng, Yi Mei, Peng-Xiang Hou, Chang Liu, Hui-Ming Cheng, Minhua Shao, Jin-Cheng Li
Summary: A bifunctional oxygen electrocatalyst enriched with single Fe atoms and NiFe2O4 nanoparticles is designed to enhance the performance of rechargeable zinc-air batteries. It accelerates the oxygen reduction reaction during discharging and promotes the oxygen evolution reaction during charging. The catalyst demonstrates excellent durability and enables high power density and low voltage loss for the corresponding zinc-air battery.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yifan Ding, Zixiong Shi, Yingjie Sun, Jianghua Wu, Xiaoqing Pan, Jingyu Sun
Summary: A generic and simple material strategy has been presented to fabricate advanced mediator for improved sulfur electrochemistry. The Li-S cells derived from this strategy exhibit impressive cyclic performances and durable areal capacity, indicating the potential for rationalizing the design and modulation of reliable polysulfide mediators in Li-S batteries.
Article
Chemistry, Analytical
Zhaoyuan Lyu, Shichao Ding, Lingzhe Fang, Xin Li, Tao Li, Mingjie Xu, Xiaoqing Pan, Wenlei Zhu, Yang Zhou, Dan Du, Yuehe Lin
Summary: In this study, a two-dimensional Fe-N-C-based single-atomic-site catalyst (2D Fe-SASC) with excellent peroxidase-like activity was successfully synthesized and used to design ELISA for herbicide detection. The 2D structure of Fe-SASC exposes numerous single atomic active sites on the surface, enhancing the sensing performance. The assembled 2D Fe-SASC into a competitive ELISA kit achieved excellent detection performance for 2,4-dichlorophenoxyacetic acid (2,4-D). Fe-SASC shows great potential to replace expensive natural enzymes and work on various advanced sensing platforms for the detection of different target biomarkers.
ANALYTICAL CHEMISTRY
(2023)
Article
Biophysics
Wenli Wu, Shuang Xia, Yulin Liu, Chunxia Ma, Zhaoyuan Lyu, Mei Zhao, Shichao Ding, Qiongzheng Hu
Summary: A Fe-NC single-atom catalyst was synthesized and used as a signal amplification element for highly sensitive gel-sol transition-based biosensing. The designed hydrogel sensor allows colorimetric detection of trypsin based on gel-sol transition, exhibiting excellent selectivity and sensitivity.
BIOSENSORS & BIOELECTRONICS
(2023)
Review
Chemistry, Multidisciplinary
Tamoghna Saha, Rafael Del Cano, Kuldeep Mahato, Ernesto De la Paz, Chuanrui Chen, Shichao Ding, Lu Yin, Joseph Wang
Summary: With the increasing diabetic population, the demand for glucose sensing devices has risen. Electrochemical biosensors show great potential for real-time glucose monitoring. Wearable devices have opened opportunities for noninvasive glucose monitoring. This review provides a comprehensive report on the status and potential of wearable electrochemical sensors for on-body glucose monitoring.
Review
Chemistry, Inorganic & Nuclear
Guohai Yang, Fanglei Liu, Jiayi Zhao, Lijie Fu, Yingqiu Gu, Lulu Qu, Chengzhou Zhu, Jun-Jie Zhu, Yuehe Lin
Summary: In this review, the latest research on MXenes in the fields of biosensing and biomedicine is summarized. The synthesis strategies and unique properties of MXenes are introduced, and the biosensing applications of MXenes are divided into three subcategories based on the sensing mechanism: electrochemical, photochemical, and opto-electrochemical biosensors. The biomedical applications of MXenes are evaluated from four aspects: antibacterial activity, bioimaging, therapeutics, and theranostics. The specific chemical and physical properties of MXenes that influence the efficiency of biosensing and biomedicine are highlighted, as well as the structure-performance relationships determining detection sensitivity and material toxicity. The challenges, future prospects, and opportunities for MXenes are discussed.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Polymer Science
Yifei Wu, Kun Wu, Fei Xiao, Enxiang Jiao, Jun Shi, Mangeng Lu
Summary: By adjusting the ratio of monomers containing hydrogen bond donors in copolymers, the intermolecular forces of thermotropic liquid crystals were tuned, resulting in improved thermal conductivity and mechanical properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Xiao-Qian Zhang, Zhaoyuan Lyu, Shichao Ding, Shiyong Zhao, Guangyu Chen, Yuehe Lin, Jin-Cheng Li
Summary: A molten-salt-assisted pyrolysis strategy was used to prepare two-dimensional porous metal-nitrogen/carbon materials with exposed metal-nitrogen sites, which showed excellent performance in both liquid-state and solid-state Zn-air fuel cells.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Huaixun Huyan, Zhe Wang, Linze Li, Xingxu Yan, Yi Zhang, Colin Heikes, Darrell G. Schlom, Ruqian Wu, Xiaoqing Pan
Summary: Defect engineering in perovskite thin films has received extensive attention due to their atomic-level modification and the design of novel nanostructures. However, three-dimensional defect-assisted nanostructures in thin film matrices usually have large misfit strains and unstable structures. In contrast, one- or two-dimensional defect-assisted nanostructures embedded in thin films can sustain large misfit strains without relaxation, making them suitable for defect engineering in perovskite thin films.
Article
Chemistry, Multidisciplinary
Jaeha Lee, Peter Tieu, Jordan Finzel, Wenjie Zang, Xingxu Yan, George Graham, Xiaoqing Pan, Phillip Christopher
Summary: The addition of platinum-group metals (PGMs, e.g., Pt) to CeO2 promotes the rate of redox surface reactions in heterogeneous catalysis. However, the mechanistic picture of PGM-promoted H-2 reactions on CeO2 surfaces in powder catalysts remains unclear. This study investigates the influence of Pt nanoclusters and single atoms on H-2 reactions on Pt/CeO2 powder catalysts using controlled catalyst synthesis and various experimental techniques. The results show that Pt can promote H-2 consumption rates even when existing on a small fraction of CeO2 particles, and Pt changes the activation mechanism and rate limiting step for H-2 on CeO2 surfaces.
Article
Chemistry, Multidisciplinary
Juan Liu, Xiaoxiao Guo, Zhaoyuan Lyu, Rong-Bin Song, Pengyu Zhou, Shichao Ding, Yang Zhou, Li-Ping Jiang, Yuehe Lin, Wenlei Zhu
Summary: By using copper electrocatalysts and microorganisms, an electro-bio tandem reactor was designed to convert CO2 into specific multicarbon compounds in both the gas and liquid phases. The reducing products from electrocatalysis can be consumed and recycled for selective acetate synthesis in Moorella thermoacetica. The results showed high faradaic selectivity for acetate in liquid products for Cu-based CO2 electroreduction and high electron conversion rate to ethylene and acetate for microbial electrosynthesis, presenting a green design for CO2 upcycling targeting multicarbon products through the parallel integration of electrocatalysis and fermentation.
Review
Chemistry, Multidisciplinary
Weiqing Xu, Yu Wu, Wenling Gu, Dan Du, Yuehe Lin, Chengzhou Zhu
Summary: Metal-organic frameworks (MOFs) have made significant advances as mimics of metalloenzymes in bioinspired catalysis, particularly in the field of active pocket engineering at the atomic level.
CHEMICAL SOCIETY REVIEWS
(2023)