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| 1 | Porphyrin-like Fe-N4 sites with sulfur adjustment on hierarchical porous carbon for different rate-determining steps in oxygen reduction reaction显示文摘We developed a strategy based on coordination polymer to synthesize singleatom site Fe/N and S-codoped hierarchical porous carbon (Fe1/N,S-PC).The as-obtained Fe1/N,S-PC exhibited superior oxygen reduction reaction (ORR) performance with a half-wave potential (Ev2,0.904 V vs.RHE) that was better than that of commercial Pt/C (E1/2,0.86 V vs.RHE),single-atom site Fe/N-doped hierarchical porous carbon (Fe1/N-PC) without S-doped (E1/2,0.85 V vs.RHE),and many other nonprecious metal catalysts in alkaline medium.Moreover,the Fe1/N,S-PC revealed high methanol tolerance and firm stability.The excellent electrocatalytic activity of Fe1/N,S-PC is attributed to the synergistic effects from the atomically dispersed porphyrin-like Fe-N4 active sites,the heteroatom codoping (N and S),and the hierarchical porous structure in the carbon materials.The calculation based on density functional theory further indicates that the catalytic performance of Fe1/N,S-PC is better than that of Fe1/N-PC owing to the sulfur doping that yielded different rate-determining steps. | Konglin Wu Xin Chen Shoujie Liu Yuan Pan Weng-Chon Cheong Wei Zhu Xing Cao Rongan Shen Wenxing Chen Jun LUO Wensheng Yan Lirong Zheng Zheng Chen Dingsheng Wang Qing Peng Chen Chen Yadong Li | 2018 | Nano Research2018，11，12： | 18 |
| 2 | Copper single-atom catalysts with photothermal performance and enhanced nanozyme activity for bacteria-infected wound therapy显示文摘Nanozymes have become a new generation of antibiotics with exciting broad-spectrum antibacterial properties and negligible biological toxicity.However,their inherent low catalytic activity limits their antibacterial properties.Herein,Cu single-atom sites/N doped porous carbon(Cu SASs/NPC)is successfully constructed for photothermal-catalytic antibacterial treatment by a pyrolysis-etching-adsorption-pyrolysis(PEAP)strategy.Cu SASs/NPC have stronger peroxidase-like catalytic activity,glutathione(GSH)-depleting function,and photothermal property compared with non-Cu-doped NPC,indicating that Cu doping significantly improves the catalytic performance of nanozymes.Cu SASs/NPC can effectively induce peroxidase-like activity in the presence of H2O2,thereby generating a large amount of hydroxyl radicals(•OH),which have a certain killing effect on bacteria and make bacteria more susceptible to temperature.The introduction of near-infrared(NIR)light can generate hyperthermia to fight bacteria,and enhance the peroxidase-like catalytic activity,thereby generating additional•OH to destroy bacteria.Interestingly,Cu SASs/NPC can act as GSH peroxidase(GSH-Px)-like nanozymes,which can deplete GSH in bacteria,thereby significantly improving the sterilization effect.PTT-catalytic synergistic antibacterial strategy produces almost 100%antibacterial efficiency against Escherichia coli(E.coli)and methicillin-resistant Staphylococcus aureus(MRSA).In vivo experiments show a better PTT-catalytic synergistic therapeutic performance on MRSA-infected mouse wounds.Overall,our work highlights the wide antibacterial and anti-infective bio-applications of Cu single-atom-containing catalysts. | Xianwen Wang Qianqian Shi Zhengbao Zha Dongdong Zhu Lirong Zheng Luoxiang Shi Xianwen Wei Lian Lian Konglin Wu Liang Cheng | 2021 | Bioactive Materials2021，6，12： | 6 |
| 3 | Size- controlled synthesis ofAg3PO4 nanorods and their high- performance photocatalysis for dye degradation under visible-light irradiation显示文摘 | Li Xiangzi Wu Konglin Dong Chao | 2014 | Mater Lett2014，130，： | 1 |
| 4 | Biomimetic copper single-atom nanozyme system for self-enhanced nanocatalytic tumor therapy显示文摘Single-atom nanozymes(SAZs)with peroxidase(POD)-like activity have good nanocatalytic tumor therapy(NCT)capabilities.However,insufficient hydrogen peroxide(H2O2)and hydrogen ions in the cells limit their therapeutic effects.Herein,to overcome these limitations,a biomimetic single-atom nanozyme system was developed for self-enhanced NCT.We used a previously described approach to produce platelet membrane vesicles.Using a high-temperature carbonization approach,copper SAZs with excellent POD-like activity were successfully synthesized.Finally,through physical extrusion,a proton pump inhibitor(PPI;pantoprazole sodium)and the SAZs were combined with platelet membrane vesicles to create PPS.Both in vivo and in vitro,PPS displayed good tumor-targeting and accumulation abilities.PPIs were able to simultaneously regulate the hydrogen ion,glutathione(GSH),and H2O2 content in tumor cells,significantly improve the catalytic ability of SAZs,and achieve self-enhanced NCT.Our in vivo studies showed that PPS had a tumor suppression rate of>90%.PPS also limited the synthesis of GSH in cells at the source;thus,glutamine metabolism therapy and NCT were integrated into an innovative method,which provides a novel strategy for multimodal tumor therapy. | Daoming Zhu Ruoyu Ling Hao Chen Meng Lyu Haisheng Qian Konglin Wu Guoxin Li Xianwen Wang | 2022 | Nano Research2022，15，8： | 0 |
| 5 | Cu_(1)-B dual-active sites catalysts for the efficient dehydrogenative coupling and CO_(2)electroreduction显示文摘Dual-active sites(DASs)catalysts have positive potential applications in broad fields because of their specific active sites and synergistic catalytic effects.Therefore,the controllable synthesis and finely regulating the activity of such catalysts has become a hot research area for now.In this work,we developed a pyrolysis-etching-hydrogen activation strategy to prepare the DASs catalysts involving single-atom Cu and B on N-doped porous carbon material(Cu_(1)-B/NPC).Numerous systematic characterization and density functional theoretical(DFT)calculation results showed that the Cu and B existed as Cu-N4 porphyrinlike unit and B-N_(3)unit in the obtained catalyst.DFT calculations further revealed that single-atom Cu and B sites were linked by bridging N atoms to form the Cu_(1)-B-N6 dual-sites.The Cu_(1)-B/NPC catalyst was more effective than the single-active site catalysts with B-N_(3)sites in NPC(B/NPC)and Cu-N4 porphyrin-like sites in NPC(Cu_(1)/NPC),respectively,for the dehydrogenative coupling of dimethylphenylsilane(DiMPSH)with various alcohols,performing the great activity(>99%)and selectivity(>99%).The catalytic performances of the Cu_(1)-B/NPC catalyst remained nearly unchanged after five cycles,also indicating its outstanding recyclability.DFT calculations showed that the Cu_(1)-B-N6 dual-sites exhibited the lowest energy profile on the potential energy surface than that of sole B-N_(3)and Cu-N4 porphyrin-like sites.Furthermore,the rate-limiting step of dehydrogenation of DiMPSH on Cu_(1)-B-N6 dual-sites also showed a much lower activation energy than the other two single sites.Benefitting from the superiority of the Cu_(1)-B-N6 dual-sites,the Cu_(1)-B/NPC catalyst can also be used for CO_(2)electroreduction to produce syngas.Thus,DASs catalysts are promising to achieve multifunctional catalytic properties and have aroused positive attention in the field of catalysis. | Konglin Wu Zhaobin Fang Cheng Peng Yining Zhang Binbin Jiang Yanshang Kang Zhiming Chen Mingfu Ye Yuxi Wu Xianwen Wei Shoujie Liu Sha Li Jian Zhang | 2023 | Nano Research2023，16，4： | 0 |
| 6 | Rationally engineered Co and N co-doped WS_(2) as bifunctional catalysts for pH-universal hydrogen evolution and oxidative dehydrogenation reactions显示文摘In the field of electrolysis of water,the design and synthesis of catalysts over a wide pH range have attracted extensive attentions.In this paper,Co and N are co-introduced into the structural unit of tungsten disulfide(WS_(2)),and the hydrogen evolution reaction(HER)performances of different WS_(2)-based catalysts are theoretically predicted and systematically studied by density functional theory(DFT)calculations.With the guidance of DFT calculations,an evaporation-pyrolysis strategy is applied to prepare Co and N co-doped WS_(2)(Co,N-WS_(2))flower-like nanosheets,which exhibits excellent HER performance over a wide pH range.In addition,the DFT calculations show that the active sites in Co,N-WS_(2) have a good ability of hydrogen adsorption after the introduction of Co and N,suggesting that such a co-doping system will be an ideal catalyst for oxidative dehydrogenation(ODH).The following experiment results indeed evidence that the Co,N-WS_(2) catalyst displays a high activity in the ODH of 1,2,3,4-tetrahydroquinoline(4H-quinoline)and its derivatives.Therefore,this work provides a good example for the rational design and accurate preparation of functional catalysts,which enables it possible to develop other efficient catalysts with multiple functions. | Min Ling Na Li Binbin Jiang Renyong Tu Tao Wu Pingli Guan Yin Ye Weng-Chon(Max)Cheong Kaian Sun Shoujie Liu Konglin Wu Aijian Huang Xianwen Wei | 2022 | Nano Research2022，15，3： | 0 |
| 7 | Recent advances and applications of single atom catalysts based electrochemical sensors显示文摘Single atom catalysts(SACs)have attracted considerable attention due to their unique structures and excellent catalytic performance,especially in the area of catalysis science and energy conversion and storage.In recent years,SACs have emerged as a new type of sensing material for constructing electrochemical sensors(ECSs),presenting excellent sensitivity,selectivity,and stability.Herein,we review the recent advances of SACs in electrochemical sensing and discuss the status quo of current SAC-based ECSs.Specifically,the fundamentals of SAC-based ECSs are outlined,including the involved central metal atoms and various supports of SACs in this field,the detection mechanisms,and improving strategies of SAC-based ECSs.Moreover,the important applications of SAC-based ECSs are listed and classified,covering the detection of reactive oxygen and nitrogen species,environmental pollutants,disease biomarkers,and pharmaceuticals.Last,based on abundant reported cases,the current conundrums of SAC-based ECSs are summarized,and the prediction of their future developing trends is also put forward. | Mingyue Wang Mingfu Ye Jieyue Wang Yong Xu Zhendong Wang Xinyue Tong Xinya Han Kui Zhang Wenhai Wang Konglin Wu Xianwen Wei | 2024 | Nano Research2024，17，4： | 0 |
| 8 | Atomically dispersed Ni anchored on polymer-derived mesh-like Ndoped carbon nanofibers as an efficient CO_(2) electrocatalytic reduction catalyst显示文摘Efficient electroreduction of CO_(2) into CO and other chemicals turns greenhouse gases into fuels and value-added chemicals,holding great promise for a closed carbon cycle and the alleviation of climate changes.However,there are still challenges in the large-scale application of CO_(2) electroreduction due to the sluggish kinetics.Herein we develop a self-assembly strategy to synthesize a highly efficient CO_(2) reduction electrocatalyst with atomically dispersed Ni-N_(4) active centers anchored on polymerderived mesh-like N-doped carbon nanofibers(Ni-N_(4)/NC).The Ni-N_(4)/NC exhibits high selectivity for CO_(2) reduction reaction with CO Faradaic efficiency(CO FE)above 90% over a wide potential range from−0.6 to−1.0 V vs.RHE.The catalyst reaches a maximum CO FE up to 98.4% at−0.8 V with a TOF of 1.28×10^(5) h^(–1) and Tafel slope of 113 mV·dec^(–1).The catalyst also exhibits remarkable stability,with little change in current density and CO FE over a 10-hour durability test at–0.8 V vs.RHE.This method provides a new route for the synthesis of highly efficient CO_(2) reduction electrocatalyst. | Tai Cao Rui Lin Shoujie Liu Weng-Chon(Max)Cheong Zhi Li Konglin Wu Youqi Zhu Xiaolu Wang Jian Zhang Qiheng Li Xiao Liang Ninghua Fu Chen Chen Dingsheng Wang Qing Peng Yadong Li | 2022 | Nano Research2022，15，5： | 0 |
| 9 | Biomass-assisted approach for large-scale construction ofmulti-functional isolated single-atom site catalysts显示文摘In recent years,the isolated single-atom site(ISAS)catalysts have attracted much attention as they are cost-effective,can achieve 100%atom-utilization efficiency,and often display superior catalytic performance.Here,we developed a biomass-assisted pyrolysis-etching-activation(PEA)strategy to construct ISAS metal decorated on N and B co-doped porous carbon(ISAS M/NBPC,M=Co,Fe,or Ni)catalysts.This PEA strategy can be applied in the universal and large-scale preparation of ISAS catalysts.Interestingly,the ISAS M/NBPC(M=Co,Fe,or Ni)catalysts show multi-functional features and excellent catalytic activities.They can be used to conduct different types of catalytic reactions,such as O-silylation(OSI),oxidative dehydrogenation(ODH),and transfer hydrogenation(THG).In addition,we used the transfer hydrogenation of nitrobenzene as a typical reaction and revealed the difference between ISAS Co/NBPC and ISAS Co/NPC(N-doped porous carbon)catalysts by density functional theory(DFT)calculations,and which showed that the decreased barrier of the ratedetermining step and the low-lying potential energy diagram indicate that the catalytic activity is higher when ISAS Co/NBPC is used than that when ISAS Co/NPC is used.These results demonstrate that the catalytic performance can be effectively improved by adjusting the coordination environment around the ISAS. | Tao Wu Sha Li Shoujie Liu Weng-Chon Cheong Cheng Peng Kai Yao Yingping Li Jieyue Wang Binbin Jiang Zheng Chen Zhiming Chen Xianwen Wei Konglin Wu | 2022 | Nano Research2022，15，5： | 0 |
| 10 | A facile solution approach for fabrication of small-sized MoSe_(2) with few layers as an efficient hydrogen evolution electrocatalyst显示文摘Unlike fossil fuels,hydrogen is a renewable and clean energy source.It is available in a large amount and spreads throughout the world.When reacting with oxygen,hydrogen releases energy to produce water as the only product.Hence,hydrogen is a promising alternative to fossil fuels[1].Today,most of hydrogen is produced via the steam methane reforming process,in which hightemperature steam is used to produce hydrogen from a methane source.However,methane is non-renewable,and carbon dioxide is generated in the reforming process. | Weizhi WANG Wei LI Xinxin WANG Junyao WU Xuewei GU Mengjuan QI Enhong SHENG Konglin WU | 2021 | Frontiers of Materials Science2021，15，3： | 0 |
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