Mengyi Qiu, Xiaorong Zhu, Shuowen Bo, Kai Cheng, Nihan He, Kaizhi Gu, Dezhong Song, Chen Chen, Xiaoxiao Wei, Dongdong Wang, Yingying Liu, Shuang Li, Xiaojin Tu, Yafei Li, Qinghua Liu, Conggang Li, Shuangyin Wang,
... Xiaorong Zhu, Shuowen Bo, Kai Cheng, Nihan He, Kaizhi Gu, Dezhong Song, Chen Chen, Xiaoxiao Wei, Dongdong Wang, ... He Google Scholar More articles by this author , Kaizhi Gu Google Scholar More articles by this author , Dezhong ...
Tópico(s): CO2 Reduction Techniques and Catalysts
2023 - Chinese Chemical Society | CCS Chemistry
Tehua Wang, Zhifeng Huang, Tianyang Liu, Tao Li, Jing Tian, Kaizhi Gu, Xiaoxiao Wei, Peng Zhou, Lang Gan, Shiqian Du, Yuqin Zou, Ru Chen, Yafei Li, Xian‐Zhu Fu, Shuangyin Wang,
Abstract Integrating biomass upgrading and hydrogen production in an electrocatalytic system is attractive both environmentally and in terms of sustainability. Conventional electrolyser systems coupling anodic biosubstrate electrooxidation with hydrogen evolution reaction usually require electricity input. Herein, we describe the development of an electrocatalytic system for simultaneous biomass upgrading, hydrogen production, and electricity generation. In contrast to conventional furfural electrooxidation, ...
Tópico(s): Catalysis and Hydrodesulfurization Studies
2021 - Wiley | Angewandte Chemie International Edition
Tehua Wang, Zhifeng Huang, Tianyang Liu, Tao Li, Jing Tian, Kaizhi Gu, Xiaoxiao Wei, Peng Zhou, Lang Gan, Shiqian Du, Yuqin Zou, Ru Chen, Yafei Li, Xian‐Zhu Fu, Shuangyin Wang,
Abstract Integrating biomass upgrading and hydrogen production in an electrocatalytic system is attractive both environmentally and in terms of sustainability. Conventional electrolyser systems coupling anodic biosubstrate electrooxidation with hydrogen evolution reaction usually require electricity input. Herein, we describe the development of an electrocatalytic system for simultaneous biomass upgrading, hydrogen production, and electricity generation. In contrast to conventional furfural electrooxidation, ...
Tópico(s): Advanced battery technologies research
2021 - Wiley | Angewandte Chemie
Kaizhi Gu, Xiaoyan Zhu, Dongdong Wang, Nana Zhang, Gen Huang, Wei Li, Long Peng, Jing Tian, Yuqin Zou, Yanyong Wang, Ru Chen, Shuangyin Wang,
The ultrathin defective high-entropy layered double hydroxides (HE-LDHs) nanosheets, having multifarious and near-continuous catalytic sites, can be used for a new platform for electrochemical oxygen evolution.
Tópico(s): Advanced battery technologies research
2021 - Elsevier BV | Journal of Energy Chemistry
Dongdong Wang, Zhiwen Chen, Yucheng Huang, Wei Li, Juan Wang, Zhuole Lu, Kaizhi Gu, Tehua Wang, Yujie Wu, Chen Chen, Yiqiong Zhang, Xiaoqing Huang, Tao Li, Chung‐Li Dong, Jun Chen, Chandra Veer Singh, Shuangyin Wang,
High-entropy alloys (HEAs) have been widely studied due to their unconventional compositions and unique physicochemical properties for various applications. Herein, for the first time, we propose a surface strain strategy to tune the electrocatalytic activity of HEAs for methanol oxidation reaction (MOR). High-resolution aberration-corrected scanning transmission electron microscopy (STEM) and elemental mapping demonstrate both uniform atomic dispersion and the formation of a face-centered cubic (FCC) ...
Tópico(s): High-Temperature Coating Behaviors
2021 - Springer Science+Business Media | Science China Materials
Kaizhi Gu, Dongdong Wang, Chao Xie, Tehua Wang, Gen Huang, Yanbo Liu, Yuqin Zou, Tao Li, Shuangyin Wang,
High-entropy oxides (HEOs), a new concept of entropy stabilization, exhibit unique structures and fascinating properties, and are thus important class of materials with significant technological potential. However, the conventional high-temperature synthesis techniques tend to afford micron-scale HEOs with low surface area, and the catalytic activity of available HEOs is still far from satisfactory because of their limited exposed active sites and poor intrinsic activity. Here we report a low-temperature ...
Tópico(s): Catalytic Processes in Materials Science
2021 - Wiley | Angewandte Chemie International Edition
Kaizhi Gu, Dongdong Wang, Chao Xie, Tehua Wang, Gen Huang, Yanbo Liu, Yuqin Zou, Tao Li, Shuangyin Wang,
Abstract High‐entropy oxides (HEOs), a new concept of entropy stabilization, exhibit unique structures and fascinating properties, and are thus important class of materials with significant technological potential. However, the conventional high‐temperature synthesis techniques tend to afford micron‐scale HEOs with low surface area, and the catalytic activity of available HEOs is still far from satisfactory because of their limited exposed active sites and poor intrinsic activity. Here we report ...
Tópico(s): Catalytic Processes in Materials Science
2021 - Wiley | Angewandte Chemie
Penghui Ding, Jun Di, Xiaoliu Chen, Mengxia Ji, Kaizhi Gu, Sheng Yin, Gaopeng Liu, Fei Zhang, Jiexiang Xia, Huaming Li,
In this study, S, N codoped graphene quantum dots/(BiO)2CO3 hollow microspheres have been fabricated by a facile electrostatic self-assembly method. The nanosized S, N:GQDs, which can be obtained by a bottom-up approach, are superior surface modification materials for photocatalytic applications due to their better electron transfer and peroxidase mimetic properties. The excellent oxidation property of the synthesized nanocomposite is confirmed by degradation of different model pollutants, such ...
Tópico(s): Carbon and Quantum Dots Applications
2018 - American Chemical Society | ACS Sustainable Chemistry & Engineering
Jun Di, Chao Zhu, Mengxia Ji, Meilin Duan, Ran Long, Cheng Yan, Kaizhi Gu, Jun Xiong, Yuanbin She, Jiexiang Xia, Huaming Li, Zheng Liu,
Solar-driven reduction of CO2 , which converts inexhaustible solar energy into value-added fuels, has been recognized as a promising sustainable energy conversion technology. However, the overall conversion efficiency is significantly limited by the inefficient charge separation and sluggish interfacial reaction dynamics, which resulted from a lack of sufficient active sites. Herein, Bi12 O17 Cl2 superfine nanotubes with a bilayer thickness of the tube wall are designed to achieve structural distortion ...
Tópico(s): Catalytic Processes in Materials Science
2018 - Wiley | Angewandte Chemie International Edition
Penghui Ding, Jun Di, Xiaoliu Chen, Junze Zhao, Kaizhi Gu, Yi Zhang, Sheng Yin, Gaopeng Liu, Jiexiang Xia, Huaming Li,
Light-mediated reactive oxygen species generation with water and oxygen is generally regarded as a mild and efficient way for organic pollutants removal. However, it is highly difficult but desirable to construct a photochemical system with increased reactive oxygen species production. Herein, by using Bi2O2CO3 as a prototype, we devise a simple metal chloride-involved etching method to achieve better light absorption and charge carriers separation in a wide-band-gap semiconductor, thus giving rise ...
Tópico(s): Gas Sensing Nanomaterials and Sensors
2018 - Elsevier BV | Applied Catalysis B Environment and Energy
Kaizhi Gu, Wanshan Qiu, Zhiqian Guo, Chenxu Yan, Shiqin Zhu, Defan Yao, Ping Shi, He Tian, Weihong Zhu,
We describe an enzyme-regulated liberation strategy to in situ generate AIEgen nanoaggregates for on-site sensing and long-term tracking of β-galactosidase in ovarian cancer cells.
Tópico(s): Molecular Sensors and Ion Detection
2018 - Royal Society of Chemistry | Chemical Science
Jun Di, Chao Zhu, Mengxia Ji, Meilin Duan, Ran Long, Cheng Yan, Kaizhi Gu, Jun Xiong, Yuanbin She, Jiexiang Xia, Huaming Li, Zheng Liu,
Abstract Solar‐driven reduction of CO 2 , which converts inexhaustible solar energy into value‐added fuels, has been recognized as a promising sustainable energy conversion technology. However, the overall conversion efficiency is significantly limited by the inefficient charge separation and sluggish interfacial reaction dynamics, which resulted from a lack of sufficient active sites. Herein, Bi 12 O 17 Cl 2 superfine nanotubes with a bilayer thickness of the tube wall are designed to achieve structural ...
Tópico(s): Catalytic Processes in Materials Science
2018 - Wiley | Angewandte Chemie
Mingwei Wang, Yisheng Xu, Yajing Liu, Kaizhi Gu, Jinchao Tan, Ping Shi, Dahai Yang, Zhiqian Guo, Weihong Zhu, Xuhong Guo, Martien A. Cohen Stuart,
Aggregation-induced emission (AIE) imaging probes have recently received considerable attention because of their unique property of high performance in the aggregated state and their imaging capability. However, the tendency of AIE molecules to aggregate into micron long irregular shapes, which significantly limits their application in vivo, is becoming a serious issue that needs to be addressed. Here, we introduce a novel engineering strategy to tune the morphology and size of AIE nanoaggregates, ...
Tópico(s): Molecular Sensors and Ion Detection
2018 - American Chemical Society | ACS Applied Materials & Interfaces
Jun Di, Chao Chen, Shize Yang, Mengxia Ji, Cheng Yan, Kaizhi Gu, Jiexiang Xia, Huaming Li, Shuzhou Li, Zheng Liu,
Defects have been engineering on the atomically-thin BiOCl nanosheets to tune the electronic structure, build abundant coordination-unsaturated active atoms with dangling bonds acts as active sites and shortens the migration distance of holes to promote holes utilization.
Tópico(s): Catalytic Processes in Materials Science
2017 - Royal Society of Chemistry | Journal of Materials Chemistry A
Yajing Liu, Shaojia Zhu, Kaizhi Gu, Zhiqian Guo, Xiaoyu Huang, Mingwei Wang, Hesham M. Amin, Weihong Zhu, Ping Shi,
Theranostic prodrug therapy enables the targeted delivery of anticancer drugs with minimized adverse effects and real-time in situ monitoring of activation of the prodrugs. In this work, we report the synthesis and biological assessment of the near-infrared (NIR) prodrug DCM-S-PPT and its amphiphilic copolymer (mPEG-DSPE)-encapsulated nanoparticles. DCM-S-PPT is composed of podophyllotoxin (PPT) as the anticancer moiety and a dicyanomethylene-4H-pyran (DCM) derivative as the NIR fluorescent reporter, ...
Tópico(s): Dendrimers and Hyperbranched Polymers
2017 - American Chemical Society | ACS Applied Materials & Interfaces
Kaizhi Gu, Zhengong Meng, Xing Wang Liu, Yue Wu, Xin Qi, Yiran Ren, Zhen‐Qiang Yu, Ben Zhong Tang,
Abstract Room‐temperature phosphorescence (RTP) of purely organic materials is easily quenched with unexpected purposes because the excited triplet state is extremely susceptible to external stimuli. How to stabilize the RTP property of purely organic luminogens is still challenging and considered as the bottleneck in the further advancement of the bottom‐up approach. Here, we describe a gated strategy that can effectively harness RTP by employing complexation/dissociation with proton. Due to the ...
Tópico(s): Molecular Sensors and Ion Detection
2023 - Wiley | Aggregate
Jingcheng Wu, Leitao Xu, Zhijie Kong, Kaizhi Gu, Yuxuan Lu, Xianwen Wu, Yuqin Zou, Shuangyin Wang,
Alanine is widely employed for synthesizing polymers, pharmaceuticals, and agrochemicals. Electrocatalytic coupling of biomass molecules and waste nitrate is attractive for the nitrate removal and alanine production under ambient conditions. However, the reaction efficiency is relatively low due to the activation of the stable substrates, and the coupling of two reactive intermediates remains challenging. Herein, we realize the integrated tandem electrochemical-chemical-electochemical synthesis ...
Tópico(s): CO2 Reduction Techniques and Catalysts
2023 - Wiley | Angewandte Chemie International Edition
Dongdong Wang, Zhiwen Chen, Kaizhi Gu, Chen Chen, Yingying Liu, Xiaoxiao Wei, Chandra Veer Singh, Shuangyin Wang,
Electrocatalytic nitric oxide (NO) reduction not only provides an extremely promising strategy for ambient NH3 generation but also alleviates the artificially disrupted N-cycle balance. However, exploring efficient electrocatalysts to enhance the NO electroreduction performance remains a significant challenge. Herein, a hexagonal-close-packed Co nanosheet (hcp-Co) is prepared and exhibits a high NH3 yield of 439.50 μmol cm-2 h-1 and a Faraday efficiency of 72.58%, outperforming the face-centered cubic ...
Tópico(s): Nanomaterials for catalytic reactions
2023 - American Chemical Society | Journal of the American Chemical Society
Ze Wu, Yujing Liu, Dongdong Wang, Yiqiong Zhang, Kaizhi Gu, Zejin He, Limin Liu, Hanwen Liu, Jincheng Fan, Chen Chen, Shuangyin Wang,
Abstract Electrocatalytic reduction of nitric oxide (NO) to ammonia (NH 3 ) is a clean and sustainable strategy to simultaneously remove NO and synthesize NH 3 . However, the conversion of low concentration NO to NH 3 is still a huge challenge. In this work, the dilatation strain between Cu and Co interface over Cu@Co catalyst is built up and investigated for electroreduction of low concentration NO (volume ratio of 1%) to NH 3 . The catalyst shows a high NH 3 yield of 627.20 µg h −1 cm −2 and a Faradaic efficiency ...
Tópico(s): Advanced Photocatalysis Techniques
2023 - | Advanced Materials
Shasha Guo, Jun Di, Chao Chen, Chao Zhu, Meilin Duan, Cheng Lian, Mengxia Ji, Weiqiang Zhou, Manzhang Xu, Pin Song, Ran Long, Xun Cao, Kaizhi Gu, Jiexiang Xia, Honglai Liu, Yanli Zhao, Li Song, Yujie Xiong, Shuzhou Li, Zheng Liu,
Photocatalytic CO2 reduction suffers from the weakness of high energy barrier, low efficiency and poor selectivity. Exploring effective strategy to enhance the adsorption and activation behavior of CO2 molecules is an alternative approach to boost CO2 photoreduction performance. In this work, abundant oxygen vacancies (VO) are introduced onto Bi2Sn2O7 nanoparticles (NPs) by decreasing their size down to about 4 nm. The VO mediated NPs exhibit a tremendous 8.1 times enhanced performance than the bulk ...
Tópico(s): CO2 Reduction Techniques and Catalysts
2020 - Elsevier BV | Applied Catalysis B Environment and Energy
Kaizhi Gu, Weihong Zhu, Xiaojun Peng,
Tópico(s): Luminescence and Fluorescent Materials
2019 - Springer Science+Business Media | Science China Chemistry
Jinfeng Yang, Kaizhi Gu, Chuanxing Shi, Meng Li, Ping Zhao, Weihong Zhu,
An AIEgen-grafted copolymer P(NIPAM-co-EM) is successfully constructed with thermo-responsive LCST-featuring matrix PNIPAM for temperature detection.
Tópico(s): Analytical Chemistry and Sensors
2019 - Royal Society of Chemistry | Materials Chemistry Frontiers
Yi Zhang, Jun Di, Penghui Ding, Junze Zhao, Kaizhi Gu, Xiaoliu Chen, Cheng Yan, Sheng Yin, Jiexiang Xia, Huaming Li,
An ultra-thin carbon nitride with loose structure and more carbon defects on the surface was achieved through high-temperature peeling methods. Its composition, morphological characteristics, surface defect types and electrochemical properties have been measured. After atomic scale structure control and surface defects construction, the photocatalytic activity of prepared g-C3N4-V for ammonia conversion from dinitrogen can be greatly improved in contrast with bulk g-C3N4. Under visible light irradiation, ...
Tópico(s): Perovskite Materials and Applications
2019 - Elsevier BV | Journal of Colloid and Interface Science
Yue Wu, Pengwei Jin, Kaizhi Gu, Chuanxin Shi, Zhiqian Guo, Zhen‐Qiang Yu, Weihong Zhu,
We report the first example of an AIEgen probe, QM-TPA, for sensing of triacylglycerol-based polymers in frying oil.
Tópico(s): Molecular Sensors and Ion Detection
2019 - Royal Society of Chemistry | Chemical Communications
Shuwen Wang, Kaizhi Gu, Zhiqian Guo, Chenxu Yan, Tingyuan Yang, Zhuo Chen, He Tian, Weihong Zhu,
The accuracy of traditional bischromophore-based ratiometric probes is always compromised by undesirable energy/charge transferring interactions between the internal reference moiety and the sensing chromophore. In this regard, ratiometric sensing with a monochromophore system is highly desirable. Herein, an unprecedented monochromophore-based ratiometric probe, which consists of a hydrophilic backbone poly(N-vinylpyrrolidone) (PVP) and single chromophore of platinum(II) tetraphenylporphyrin (Pt-TPP) ...
Tópico(s): Supramolecular Self-Assembly in Materials
2018 - | Advanced Materials
Kaizhi Gu, Yisheng Xu, Hui Li, Zhiqian Guo, Shaojia Zhu, Shiqin Zhu, Ping Shi, Tony D. James, He Tian, Weihong Zhu,
Development of "smart" noninvasive bioimaging probes for trapping specific enzyme activities is highly desirable for cancer therapy in vivo. Given that β-galactosidase (β-gal) is an important biomarker for cell senescence and primary ovarian cancers, we design an enzyme-activatable ratiometric near-infrared (NIR) probe (DCM-βgal) for the real-time fluorescent quantification and trapping of β-gal activity in vivo and in situ. DCM-βgal manifests significantly ratiometric and turn-on NIR fluorescent signals ...
Tópico(s): Luminescence and Fluorescent Materials
2016 - American Chemical Society | Journal of the American Chemical Society
Kaizhi Gu, Yajing Liu, Zhiqian Guo, Cheng Lian, Chenxu Yan, Ping Shi, He Tian, Weihong Zhu,
Leucine aminopeptidase (LAP), one of the important proteolytic enzymes, is intertwined with the progress of many pathological disorders as a well-defined biomarker. To explore fluorescent aminopeptidase probe for quantitative detection of LAP distribution and dynamic changes, herein we report a LAP-targeting near-infrared (NIR) fluorescent probe (DCM-Leu) for ratiometric quantitative trapping of LAP activity in different kinds of living cells. DCM-Leu is composed of a NIR-emitting fluorophore (DCM) ...
Tópico(s): Advanced biosensing and bioanalysis techniques
2016 - American Chemical Society | ACS Applied Materials & Interfaces
Mingwei Wang, Nan Yang, Zhiqian Guo, Kaizhi Gu, Andong Shao, Weihong Zhu, Yisheng Xu, Jie Wang, Robert K. Prud’homme, Xuhong Guo,
Flash nanoprecipitation (FNP) is an easily scalable and fast processing method for the preparation of nanoparticles (NPs) with simple vortex equipment. By using the FNP method, fluorescent NPs are prepared in less than 1 s in a multi-inlet vortex mixer, in which hydrophobic aggregation-induced emission (AIE)-active dye of EDP is incorporated within the biocompatible block copolymer poly(ethylene glycol)-b-poly(ε-caprolactone) for EDP NP assembly. The formulation parameters of stream velocity, dyes, ...
Tópico(s): Pickering emulsions and particle stabilization
2015 - American Chemical Society | Industrial & Engineering Chemistry Research
Long Peng, Shiqian Du, Qie Liu, Tao Li, Cong Peng, Tehua Wang, Kaizhi Gu, Chao Xie, Yiqiong Zhang, Ru Chen, Shanfu Lu, Yi Cheng, Wei Feng, Shuangyin Wang,
High-temperature proton exchange membrane fuel cells (HT-PEMFCs) bring new opportunities for portable power generation due to their outstanding advantages such as high tolerance to fuel/air impurities and simplified heat/water management. However, carbon-supported nanostructured Pt-based catalysts running at temperatures over 150°C are challenged by the severe aggregation and carbon corrosion, thus leading to poor durability. Herein, we demonstrate that dendritic Pt-Ni nanoparticles supported on ...
Tópico(s): Advanced battery technologies research
2021 - Springer Science+Business Media | Science China Materials
Jing Tian, Bo Feng, Xiaoxin Zhang, Kaizhi Gu, Pei Yan, Minghua Qiao, Jinlong Zhang, Baoning Zong,
Polymeric carbon nitride (PCN) is an important metal-free photocatalyst for visible light-driven hydrogen peroxide (H2O2) production from O2 reduction. Herein, we synthesized the DPCN catalysts possessing nitrogen defects by one-step thermal polymerization of urea in N2 stream. As compared to the PCN conventionally synthesized in static air, X-ray photoelectrons spectroscopy (XPS) characterization disclosed that there are more pyridinic N defects in the DPCN catalysts, which is attributed to the removal ...
Tópico(s): Perovskite Materials and Applications
2022 - Elsevier BV | Journal of Colloid and Interface Science