Article
Chemistry, Physical
Xuhui Li, Ruixue Zhao, Yuanyuan Fu, Dawei Xu, Yunpeng Kang, Kai Li, Zhongfeng Li, Lirong Zheng, Xia Zuo
Summary: Metal phthalocyanines (MPcs) exhibit excellent electrocatalytic performance during the oxygen reduction reaction (ORR), but they suffer from aggregation and poor conductivity and durability. This study introduces iron phthalocyanine (FePc) into hollow carbon shells (HCSs) to create an ORR catalyst with single Fe atoms, which shows promising oxygen reduction properties and can be an alternative to Pt-based ORR catalysts.
Article
Chemistry, Physical
Jung Su Lee, Hashikaa Rajan, Maria Christy, Sung Chul Yi
Summary: The Co-decorated nitrogen and sulfur co-doped carbon nanostructures (Co-NSC) exhibit high catalytic activity for oxygen reduction reactions, aiming to replace expensive commercial Pt catalysts. The sulfur co-doping dramatically enhances intrinsic catalytic activity, with variation in sulfurization degree influencing overall catalytic performance. Co-NSC 200 with high sulfur doping shows improved onset potential and current density, making it a promising PGM-free catalyst option.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Electrochemistry
Shaoshao Jiao, Chen Li, Yaowen Zhang, Jianyang Gao, Zhenjiang Li, Kang Liu, Lei Wang
Summary: Nitrogen-doped porous carbon materials derived from porous organic polymers and metal-organic framework derivatives are prepared as efficient ORR electrocatalysts and supercapacitors. The hierarchical open-structured carbon-nitrogen material obtained by pyrolyzing ZIF-8 in an inert atmosphere exhibits superior activity, stability, and methanol tolerance compared to Pt/C catalysts in both alkaline and acidic media. The NPCs-based supercapacitor shows a high capacitance of 225 F g-1 with good cycling stability (95.75% capacitor retention after 10,000 cycles) in 6 M KOH electrolyte.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Jonathan Filippi, Hamish A. Miller, Lucia Nasi, Maria V. Pagliaro, Andrea Marchionni, Michele Melchionna, Paolo Fornasiero, Francesco Vizza
Summary: This study investigates the performance of a Cobalt@N-doped graphitic carbon core-shell nanohybrid electrocatalyst in a complete cell, and by optimizing the flow rate and potential, it can efficiently produce H2O2 with a high concentration of up to 1 wt%.
MATERIALS TODAY ENERGY
(2022)
Article
Chemistry, Physical
Yafeng Zhang, Kai Ye, Qingqing Gu, Qike Jiang, Juan Qin, Deying Leng, Qianru Liu, Bing Yang, Feng Yin
Summary: In this study, Pd@Pt-based core-shell nanoparticles were successfully synthesized using a versatile co-reduction method, with the ability to effectively tune the shell component and improve the oxygen reduction reaction (ORR) activity. By incorporating a third metal into the shell layer, the activity of the catalysts was significantly enhanced, showing lower activity decay after cycling compared to the catalyst without the third metal.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Liuxuan Luo, Cehuang Fu, Yangge Guo, Xiyang Cai, Xiashuang Luo, Zehao Tan, Rui Xue, Xiaojing Cheng, Shuiyun Shen, Junliang Zhang
Summary: Rationally combining designed supports and metal-based nanomaterials is effective to synergize their respective physicochemical and electrochemical properties for developing highly active and stable/durable electrocatalysts. In this work, sub-5 nm monodispersed nanodots with a special nanostructure are synthesized and anchored onto 3D porous N-doped graphene nanosheets. The resulting electrocatalysts exhibit exceptional activity and stability, outperforming commercial Pd/C and Pt/C. Advanced experimental and theoretical analyses reveal the synthetic mechanism and origins of the enhanced performance, providing a design paradigm for high-performance electrocatalysts.
Article
Chemistry, Multidisciplinary
Jingyu Guan, Shaoxuan Yang, Tongtong Liu, Yihuan Yu, Jin Niu, Zhengping Zhang, Feng Wang
Summary: The development of platinum-based oxygen reduction reaction electrocatalysts with good resistance to poisoning is crucial for practical fuel cell applications. A surface-engineering approach using alloy PtBi shells to prepare nanostructured Pt alloys showed significantly improved ORR performance compared to benchmark Pt/C, with enhanced tolerance to methanol and carbon monoxide. The observed enhancement in performance is attributed to increased compressive strain and charge displacement via Pt-Bi bonding.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Yangdan Pan, Junkuo Gao, Yuwen Li, Enjun Lv, Usman Khan, Xiaogang Yang, Juming Yao, Adeela Nairan, Qichun Zhang
Summary: In this study, a novel catalyst of segregated CoNiPt alloy embedded in N-doped porous carbon with a nanoflowers-like hierarchy structure was synthesized through pyrolyzing Hofmann-type metal-organic frameworks. The resulting catalyst showed outstanding alkaline oxygen reduction activity and its mass activity was 7.5 times higher than that of commercial Pt/C catalyst, surpassing state-of-the-art noble metal-based catalysts. This work provides a practical and feasible strategy for synthesizing cost-effective alkaline oxygen reduction reaction catalysts by optimizing the electronic structure of metal-organic framework-derived catalysts.
Article
Chemistry, Multidisciplinary
Hongbin Sheng, Hao Qu, Biao Zeng, Yanxin Li, Chenghui Xia, Can Li, Lixin Cao, Bohua Dong
Summary: The rational design of efficient and cost-effective electrocatalysts for oxygen evolution reaction (OER) is crucial for clean energy technologies. A new approach is proposed to design electrocatalysts with abundant active sites by utilizing crystalline/amorphous heterostructure. The Fe-NiCoHPi electrocatalyst with cauliflower-like structure exhibits remarkable activity and unceasing durability, making it a promising candidate for sustainable energy devices.
Article
Chemistry, Physical
Zhiyuan Guo, Shaoming Liu, Xiao Hu, Jie Song, Ke Xu, Qing Ye, Guizhi Xu, Zhanfeng Deng
Summary: Homogeneous dispersion of active sites and abundant pore structure are favorable for the oxygen reduction reaction activity of non-precious metal electrocatalysts. The nitrogen-doped carbon core supported CoFe alloy-nitrogen co-doped carbon shell nanopolyhedron electrocatalyst prepared through a facile thermal conversion exhibited excellent catalytic activity and electrochemical stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Deok-Hye Park, Yo-Seob Kim, Sang-Beom Han, Woo-Jun Lee, Hak-Joo Lee, Yong-Soo Lee, Sang-Hyun Moon, Kyung-Won Park
Summary: A novel bi-metallic phosphide structure has been reported as an electrocatalyst with enhanced electrochemical activity compared to traditional catalysts, showing superior performance in OER, ORR, and MOR applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Lingbo Zong, Ping Li, Fenghong Lu, Chengbin Wang, Kaicai Fan, Zhenjiang Li, Lei Wang
Summary: A facile strategy for in situ assembly of NiFe-MOFs nanosheets on heteroatoms-doped porous activated carbon spheres is developed and supported by theoretical computations. The newly designed electrocatalyst (NP-ACSs@NiFe-MOFs) exhibits excellent performance in bifunctional oxygen electrocatalysis. This study presents a rational integration strategy for different catalytically active components and has the potential to prepare other competitive multifunctional electrocatalysts.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Fenglei Shi, Jiaheng Peng, Fan Li, Ningkang Qian, Hao Shan, Peng Tao, Chengyi Song, Wen Shang, Tao Deng, Hui Zhang, Jianbo Wu
Summary: In this study, an optimized nanocube with enhanced corrosion resistance was designed based on in-situ study on nanoscale corrosion kinetics. The modified nanocube (MNC) showed the best stability performance in practical electrochemical stability testing, with a minimal loss in specific and mass activity after accelerated durability test. This work highlights the importance of in-situ study in guiding the design of materials with improved properties for practical applications.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Hesheng Yu, Dawei Liu, Katam Srinivas, Fei Ma, Ziheng Zhang, Mengya Wang, Yu Wu, Yue Wang, Xinsheng Li, Yuanfu Chen
Summary: In this study, a Fe/Fe3C@NC catalyst with unconventional core-shell nanostructure was developed via facile pyrolysis. The catalyst exhibited superior performance in oxygen reduction reaction (ORR), surpassing the benchmark Pt/C catalyst in terms of half-wave potential and Tafel slope, while maintaining excellent durability and methanol tolerance. The distinct morphological structure, including the heterostructure, core-shell nanostructure, high-content pyridinic-N doping, and abundant mesopores, contributed to the enhanced ORR activities. This study presents a strategy for designing and fabricating non-noble catalysts with well-designed nanoarchitecture and high catalytic activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Xia Zhong, Keke Huang, Yuan Zhang, Ying Wang, Shouhua Feng
Summary: A unique Fe2O3@C@CoP core-shell catalyst was successfully designed through phosphorization treatment, exhibiting extremely low overpotential, low Tafel slope, and long-term stability in electrocatalytic water splitting. The Co-O-C bond plays a key role in reducing the thermodynamic energy barrier for the rate-determining step of the oxygen evolution reaction.
Article
Chemistry, Multidisciplinary
Xi Fan, Furong Yuan, Jiaqi Wang, Zhibin Cheng, Shengchang Xiang, Huayan Yang, Zhangjing Zhang
Summary: This study reports the first example of structural isomerism in copper clusters, providing valuable insights into the structure-property relationships and complex evolution of phase transformation in nanometallic solids. The results demonstrate that cluster isomerism bridges the gap between small molecular isomerization and solid-solid phase transformation, offering promising opportunities for further research.
Article
Chemistry, Multidisciplinary
Fahui Xiang, Hao Zhang, Yisi Yang, Lu Li, Zhenni Que, Liangji Chen, Zhen Yuan, Shimin Chen, Zizhu Yao, Jianwei Fu, Shengchang Xiang, Banglin Chen, Zhangjing Zhang
Summary: In this study, a novel MOF (FJU-112) with a tetranuclear copper cluster node and a deprotonated organic ligand as the cap was synthesized. The pore spaces in FJU-112 were divided into smaller cages and windows using BPE as a pore partitioner, enabling efficient gas adsorption and separation. FJU-112 exhibited high separation performance for C2H2/CO2 separation due to the strong pi-complexation interactions between C2H2 molecules and framework pore surfaces.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Yingbing Zou, Tangxing Pan, Zhiwen Fan, Yunbin Li, Hao Zhang, Yan Ju, Yongfan Zhang, Xiuling Ma, Qianhuo Chen, Shengchang Xiang, Zhangjing Zhang
Summary: This study focuses on regulating the electron transfer channels to enhance the performance of CO2 reduction reaction (CO2RR). The researchers obtained two metal-organic coordination polymers (MOCPs) for CO2RR through rational design. They found that the MOCP with multi-dimensional electron transfer channels exhibited higher electron conductivities and lower band gap, resulting in improved CO2RR performance with higher Faradaic efficiency for CO.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Yuanchao Lv, Jiashuai Liang, Zhile Xiong, Hao Zhang, Delin Li, Xue Yang, Shengchang Xiang, Zhangjing Zhang
Summary: Polarity-evolution-controlled framework/luminescence regulation is achieved based on multiple-site hydrogen-bonded organic frameworks. By adjusting the solvent polarity, the bonding modes of building units can be changed, leading to the formation of different HOFs. These results pave the way for the rational design of ideal HOFs with on-demand framework regulation and luminescence properties.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jitao Huang, Qinfang Peng, Chulong Liu, Yingxiang Ye, Liangji Chen, Yuanchao Lv, Yisi Yang, Shimin Chen, Fahui Xiang, Hao Zhang, Zhangjing Zhang, Shengchang Xiang
Summary: In this study, a series of porous organic polymers (POPs) with abundant N-sites, named FJU-POP-n, were synthesized using a one-pot Ullmann coupling reaction. The catalyst used was low-cost and non-toxic Cu(acac)2, and the solvent used was environmentally friendly glycerol. These POPs, constructed from aromatic amine and haloarene monomers, exhibited different steric configurations and pore sizes. Among them, FJU-POP-4 showed ultra-high selective separation for C2H2/CH4 (307.1, 50 : 50) at ambient conditions, surpassing other reported MOFs and POPs with nitrogen-sites as the only functional species. Dynamic fixed bed breakthrough and regeneration experiments confirmed their structural stability and reproducibility, indicating promising applications in selective separation.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Ziwen Mao, Mengqi Zhu, Zhibin Cheng, Jingan Chen, Shicheng Tang, Zhenghong Li, Shengchang Xiang, Jindan Zhang, Zhangjing Zhang
Summary: Defect passivation using aryl ammonium salts is a feasible approach to improve the efficiency and stability of perovskite solar cells. In this study, a series of diammonium iodides were used as passivators on the perovskite surface. The results demonstrate that carrier transport ability plays a more important role than pKa values of the passivators in determining the performance of the solar cells. Passivator molecules with high polarity can enhance carrier transport and reduce nonradiative recombination.
ORGANIC ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Xi Fan, Jian Cheng, Mei Qiu, Yongfan Zhang, Shuai Chen, Zhangjing Zhang, Yang Peng, Jian Zhang, Lei Zhang
Summary: The construction of biomimetic cluster catalysts with metalloenzyme-like active sites is a promising approach for the transformation of greenhouse gases to high-value chemicals. This work successfully isolated a small Cu4 cluster using a Ti9-oxo nanoring as an inorganic template, which serves as an atomically precise bioinspired cluster with metalloenzyme-like catalytic sites. The Cu4@Ti9 catalyst exhibits high selectivity for electrocatalytic reduction of CO2 to C2H4 and good catalytic durability.
ACS MATERIALS LETTERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yuanchao Lv, Xue Yang, Zhile Xiong, Yunbin Li, Jiashuai Liang, Shengchang Xiang, Zhangjing Zhang
Summary: This study proposes a strategy to achieve the switching of excitation-wavelength-dependent emission behavior in mixed-ligand metal-organic frameworks (ML-MOFs) based on a proton-controlled energy transfer process. By adjusting the excitation wavelength, the relative intensities of two emissions can be modulated, leading to the excitation-wavelength-dependent emission behavior. Demonstrating the potential for high-level anti-counterfeiting applications, this research highlights the importance of proton-switched emission behavior in ML-MOFs.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Jiali Huang, Yunbin Li, Hao Zhang, Zhen Yuan, Shengchang Xiang, Banglin Chen, Zhangjing Zhang
Summary: This article reports the structure of a new type of microporous material, hydrogen-bonded organic frameworks (HOFs), with a 4-fold interpenetrated diamond network structure, which exhibits excellent chemical and thermal stability. The activated HOF-FJU-46 shows the highest xenon uptake and xenon/krypton selectivity among the reported HOFs to date.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Engineering, Chemical
Xuan Lin, Yisi Yang, Xue Wang, Si Lin, Zongbi Bao, Zhangjing Zhang, Shengchang Xiang
Summary: This review summarizes the latest developments in metal-organic frameworks (MOFs) and hydrogen-bonded organic frameworks (HOFs) for the separation of ethylene and ethane mixtures, including strategies to improve adsorption capacity and separation selectivity, as well as their efficient separation in practical environments.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Physical
Zhen Yuan, Liangji Chen, Xin Zhou, Lu Li, Yunbin Li, Yisi Yang, Zhiqi Zhou, Yanting Chen, Shengchang Xiang, Banglin Chen, Zhangjing Zhang
Summary: This study proposes an optimized pore engineering strategy by enlarging the core size of rigid monomers to increase the pore size of benzene cyanide-based HOFs. Through experimental validation, it is demonstrated that the resulting HOF material exhibits the highest Xe/Kr separation performance reported to date.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Inorganic & Nuclear
Jitao Huang, Yisi Yang, Liangji Chen, Zhangjing Zhang, Shengchang Xiang
Summary: An ionothermal polymerization approach was used to create porous organic polymers (FJU-CTFs) with strong hydration stability and low skeleton density for atmospheric water harvesting. These materials have high water vapor adsorption capacity, rapid filling of water vapor, and can collect atmospheric water at low humidity and narrow temperature ranges.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2023)