Article
Chemistry, Physical
John Anthuvan Rajesh, In-Rok Jo, Soon-Hyung Kang, Hyunsoo Kim, Kwang-Soon Ahn
Summary: Efficient electrocatalysts for water splitting are crucial for clean fuel production. In this study, cobalt-nickel selenide (CoNi2Se4) nanostructures were successfully fabricated with excellent water splitting performance, with the flake-like CoNi2Se4 structure showing the best catalytic activity at pH 3.0.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Zhiyue Han, Guotong Li, Xin Zeng, Yanli Zhu, Nan Li, Jiatao Zhang, Wanjun Zhao, Qingjie Jiao
Summary: A two-step electrochemical method is proposed for the in-situ deposition of copper and synthesis of copper(I) sulfide (Cu2S) with controllable morphology on nickel foam (NF), and the resulting Cu2S@NF electrodes exhibit excellent bifunctional electrocatalytic performance. The size and amount of the deposits can be adjusted by controlling applied potentials, leading to the optimization of electrocatalytic activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Le Chai, Shuling Liu, Shaotong Pei, Chao Wang
Summary: This paper presents a series of cobalt-nickel phosphide films electrodeposited on nickel foam substrates, exhibiting good catalytic activity in alkaline solutions for both the hydrogen evolution reaction and water oxidation reaction. The electrodes show low overpotentials and steep Tafel slopes, with potential applications in electrolyzing water for hydrogen production.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Behnam Nourmohammadi Khiarak, Majdoddin Mojaddami, Zahra Zamani Faradonbeh, Angelina Olegovna Zekiy, Abdolreza Simchi
Summary: The development of active, durable, cost-effective, and stable electrocatalysts is urgently needed in various industries, including renewable energy systems. This article presents an electrochemical analysis of a nanostructured electrocatalyst based on a Cu-Ni-Fe-Cr-Co alloy with enhanced activity for both oxygen and hydrogen reactions in alkaline medium.
Article
Chemistry, Physical
Piyali Bhanja, Bishnupad Mohanty, Sayantan Chongdar, Asim Bhaumik, Bikash Kumar Jena, Suddhasatwa Basu
Summary: Developing a low-cost, highly efficient electrocatalyst is crucial for clean and sustainable energy production. In this study, microporous iron-anchored cobalt phosphonate materials (FeCoPIm-12) showed excellent electrocatalytic activity for hydrogen evolution and oxygen evolution reactions, with low overpotentials and outstanding long-term durability. The superior performance of FeCoPIm-12 is attributed to its high surface area with microporous channels and the synergistic effect of active metal oxyhydroxide components.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Electrochemistry
Wei-Zhe Chen, Meng Zhang, Lei Zhang, Jinlu He, Zhiliang Liu, Yan-Qin Wang
Summary: A class of electrodes consisting of amorphous-crystalline nickel nitride species (NNS)/Ni2P heterostructures anchored on N-doped carbon (NC) in-situ grown on Ni foam (NF) are reported. The optimized electronic structure, D-band center, and the existence of defective N-doped carbon regulated by the construction of heterostructure and the use of different N sources contribute to the excellent hydrogen evolution reaction (HER) activity and oxygen evolution reaction (OER) activity of the NNS-d/Ni2P@NC-NF electrode. Additionally, the NNS-d/Ni-2P@NC-NF electrode demonstrates long-term durability for at least 120 hours at a current density of 10 mA cm(-2). Density-functional theory (DFT) calculation further supports the role of heterostructure in optimizing the electronic structure and D-band center of the catalysts, thereby enhancing their catalytic activity.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Haibin Yao, Fuhe Le, Wei Jia, Yali Cao, Rui Sheng, Zhenjiang Lu, Xianhao Chen, Dianzeng Jia
Summary: A heterostructure of NiFeV hydroxide and iron oxide supported on iron foam (NiFeV@FeOx/IF) has been designed as a highly efficient bifunctional electrocatalyst. The V doping and intimate contact between NiFeV hydroxide and FeOx improve the electrical conductivity and provide high-valence Ni as active sites for OER. The introduction of V and FeOx reduces the electron density on lattice oxygen, facilitating H-ads desorption and achieving low overpotentials for OER and HER.
Article
Chemistry, Physical
Wenhao Chen, Junrong Zeng, Gaowei Zhang, Jie Yu, Yejun Qiu
Summary: This study successfully fabricated a novel material of Mo-doped NiFe(x) nanospheres on 3D graphene fibers, which exhibited excellent conductivity and specific surface area, benefiting the electrocatalytic hydrolysis activity. Fe element was found to promote the oxygen evolution reaction (OER), while Mo doping facilitated both OER and hydrogen evolution reaction (HER). The synergistic roles between Fe and Mo elements were confirmed, controlling the electronic structure and optimizing the adsorption/desorption of intermediates. The Mo-doped Ni/3DGFs showed a smaller HER overpotential of 109.9 mV, and the Mo-doped NiFe(x)/3DGFs exhibited better OER performance with an overpotential of 240.8 mV in 1.0 M KOH at a current density of 100 mA cm(-2). The overall water splitting system constructed by Mo-doped Ni/3DGFs||Mo-doped NiFe0.68/3DGFs electrodes achieved a low cell voltage of 1.52 V at 10 mA cm(-2) and demonstrated long-term stability, surpassing most literature results. These findings provide insights into the simple synthesis of high-performance and cheap catalysts and lay the foundation for practical applications of transition metal catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Yongjun Shen, Yin Chen, Shuaikang Fang, Jae Kwang Park, Kun Feng
Summary: To address the current energy and environmental challenges, hydrogen energy is recognized as the most promising clean energy alternative to traditional fossil fuels. Water electrolysis, the main technology for hydrogen production, has been limited by two half-reactions, hampering yield improvement. To overcome this hurdle, the development of cost-effective and efficient bifunctional electrocatalysts has become a research focus. In this study, CuCo2S4/NF (Ni foam) nanowires were synthesized using a mild hydrothermal process and then subjected to a plasma reactor for modification. The plasma treatment led to a morphological change in the catalyst, resulting in a distinct flower-like nanowire structure that enhanced its catalytic performance. The plasma-modified CuCo2S4/Ni foam (PA@CuCo2S4/NF) exhibited low overpotentials for the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) in alkaline solutions. The Tafel slopes of the HER and OER were found to be 85.9 mVdec-1 and 142.7 mVdec-1, respectively, indicating favorable reaction kinetics. Furthermore, a cell voltage of only 1.55 V was sufficient to achieve a current density of 10 mA cm-2 during water splitting. This study demonstrates the feasibility of using plasma technology to create high-performance electrocatalysts.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Multidisciplinary
Que Thi Nguyen, Umesh T. Nakate, Jinyu Chen, Duy Thanh Tran, Sungjune Park
Summary: Metal hydroxides, such as nanostructured ternary transition metal (M = Mo, Co, Fe) hydroxides, are versatile and appealing electrode materials with easy synthesis, high conductivity, and porous structures. These materials show promise in applications such as water splitting and supercapacitors due to their unique composition and evolved nanostructures. For water splitting, electrodes with different metal salt solutions exhibit excellent hydrogen and oxygen evolution activities. For supercapacitors, the working electrode with a specific composition shows high areal capacitance and excellent retention. The hybrid electrodes and synergistic effects contribute to the high performance of both water splitting full cells and supercapacitors.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Electrochemistry
Guanghui Zhang, Huaiyun Ge, Lingxue Zhao, Jianyu Liu, Fengbo Wang, Siwei Fan, Guangda Li
Summary: In this study, NiMn1.5PO4 thin layers were grown on Ni foam surface to form a 3D network structure with high specific surface area and porous framework. This structure exhibited low overpotentials and high efficiency in hydrogen and oxygen evolution reactions, showing promising potential for water splitting applications.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Dezheng Guo, Xin Li, Yanqing Jiao, Haijing Yan, Aiping Wu, Ganceng Yang, Yu Wang, Chungui Tian, Honggang Fu
Summary: The development of cost-effective and efficient catalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is crucial for practical water splitting. In this study, a novel bifunctional HER/OER electrocatalyst was proposed by coupling a Co-based heterojunction with Ti3C2-MXene, showing excellent activity and stability. The catalyst demonstrated low onset potential and high Faradaic efficiency, making it ideal for consecutive production of hydrogen and oxygen gases using solar cell power.
Article
Chemistry, Physical
Yahan Meng, Mingming Wang, Zhengxin Zhu, Taoli Jiang, Zaichun Liu, Na Chen, Chunyue Shen, Qia Peng, Wei Chen
Summary: The study demonstrates an integrated hydrogen gas production and energy storage system made possible by using a multifunctional nickel-cobalt phosphate (NCP) material. The NCP shows better redox reactions for energy storage and higher electrochemical activity due to the synergistic effect between Ni, Co, and phosphate ions. The NCP-H-2 battery based on the NCP cathode and H-2 anode shows outstanding rate performance and long-term stability, making it suitable for potential energy production and storage applications.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Environmental
Yikai Lu, Zixuan Li, Yanling Xu, Linqian Tang, Shengjie Xu, Di Li, Jianjun Zhu, Deli Jiang
Summary: Non-precious metal electrocatalysts with high activity and stability are crucial for overall water splitting. Cobalt-molybdenum nitride nanosheet arrays grown on Ni foam were prepared through a facile hydrothermal and nitridation process. The resulting material showed excellent electrocatalytic performance for hydrogen and oxygen evolution reactions, with low cell voltage requirements.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Jiayang Wang, Peilei He, Yongli Shen, Linxiu Dai, Zhe Li, Yue Wu, Changhua An
Summary: Synthesis of composite FeNi@Mo2TiC2Tx@NF with high HER and OER activity through introducing Fe2+ ions and combining with surface nickel atoms, provides a new strategy for overall water splitting.
Article
Chemistry, Physical
Lulu Chai, Abba Bala Musa, Junqing Pan, Jinlu Song, Yanzhi Sun, Xiaoguang Liu
Summary: This article reports a rational in-situ synthesis of NiAl layered double hydroxides (LDHs) on Ni-based metal-organic framework (MOF)-derived porous carbons (PCs) material with a hydrothermal method. The resulting NiAl-LDH/Ni@C composite possesses a unique cross-linking nanosheet structure and high electrical conductivity, which improves conductivity, reduces resistance, and increases electrochemically active sites. The proposed approach provides a direction for designing advanced energy storage devices with high electrochemical performance.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Multidisciplinary
Cuiping Chang, Ying Xiong, Rui Miao, Yanzhi Sun, Yongmei Chen, Junqing Pan
Summary: In this paper, a highly catalytically active Ni/Fe hydroxide electro-catalyst for the oxygen evolution reaction (OER) is proposed, which is in situ formed on the surface of the stainless steel fiber felt using a sacrificial template by adding the oxidizing agent K2S2O8 to the alkaline solution under mild conditions. The electrode prepared using this method shows enhanced catalytic activity for the OER, with overpotentials at 10 mA cm(-2) of only 214 mV and 263 mV in KOH and Na2CO3/NaHCO3 solutions, respectively. Additionally, the electrode exhibits ultra-high stability, with the potential and morphology remaining stable for 180 h at 10 and 100 mA cm(-2) in the Na2CO3/NaHCO3 system, indicating promising prospects for large-scale production.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Kai Che, Xiaoyang Zhu, Guangshi Tang, Man Zhao, Junqing Pan
Summary: In this study, an anodic oxygen evolution reaction catalyst with a low Ir mass fraction of 7.2% was obtained by electroplating iridium on carbon cloth (CC). The use of CC-Ir as an anodic catalyst effectively suppressed the side reaction of PbO2, reducing energy consumption and increasing recovery efficiency in lead electrolytic recovery process.
Article
Nanoscience & Nanotechnology
Chaohua Sun, Rui Miao, Jipeng Li, Yanzhi Sun, Yongmei Chen, Junqing Pan, Yang Tang, Pingyu Wan
Summary: An environmentally friendly Zn(CH3SO3)(2) electrolyte is proposed to improve the reversibility and cyclic stability of aqueous zinc-ion batteries. The electrolyte regulates the solvation structure of Zn2+, slowing down side reactions and dendrite formation, and enhances the battery capacity. The assembled Zn//V2O5 cell with Zn(CH3SO3)(2) electrolyte exhibits high Coulombic efficiency and improved specific capacity.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Lulu Chai, Jinlu Song, Yanzhi Sun, Xiaoguang Liu, Xifei Li, Maohong Fan, Junqing Pan, Xueliang Sun
Summary: This study proposes a smart dual-oxygen electrode for high-specific-energy batteries, which addresses the issues of energy efficiency decay, wide charge-discharge gap, and catalyst peeling. The electrode consists of a switch control module, OER and ORR catalysis layers, and an ion conductive | electronic insulating membrane. The electrode shows an ultralow energy efficiency decay rate and enables a high energy efficiency in zinc-air batteries.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Kai Che, Man Zhao, Yanzhi Sun, Junqing Pan
Summary: This study combines purified and activated pyrolytic carbon black (CBp) with nickel-iron-layered double hydroxide (NiFeLDH) to form an NiFeLDH/A-CBp catalyst for the oxygen evolution reaction (OER). The CBp improves the conductivity of the catalyst and reduces the size of the NiFeLDH nanosheets, resulting in increased activated surface area. The introduction of ascorbic acid (AA) enhances the coupling between NiFeLDH and A-CBp, leading to improved catalytic performance and stability in water splitting and zinc electrowinning.
Article
Chemistry, Multidisciplinary
Xue Bai, Zengyan Jiang, Yanzhi Sun, Xiaoguang Liu, Xin Jin, Rui He, Zhenfa Liu, Junqing Pan
Summary: The recycling and utilization of metallic elements in waste lithium-ion batteries (LIBs) have attracted attention due to the increasing amount of waste LIBs and limited lithium resources. This study proposes a novel leaching system using ammonium sulfate as the leaching agent to effectively extract valuable metals from waste positive materials of LIBs. The leaching rates of Ni, Co, Mn, and Li reach 99% under optimized conditions. The recycled (NH4)2SO4 is used in a co-precipitation process to obtain high-quality cathode material (NCM111) with desirable electrochemical properties for LIBs.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Lulu Chai, Zhiyu Li, Keyu Wang, Xiaowei Liu, Shaozhen Dai, Xiaoguang Liu, Yanzhi Sun, Junqing Pan
Summary: The new low-cost clean pre-desulfation technology using dual rotating liquid film reactors and lime shows great potential in achieving high desulfation and sulfation rates with reduced energy consumption and emissions. The proposed method provides a sustainable and efficient approach for waste resource treatment.
Article
Chemistry, Inorganic & Nuclear
Guosai Jiang, Meiling Chen, Yanzhi Sun, Yufeng Wu, Junqing Pan
Summary: In this study, a novel IrFe/nitrogen-doped pyrolytic carbon black composite was proposed as an oxygen evolution reaction (OER) catalyst for the methanesulfonic acid (MSA) electrolytic system. The catalyst demonstrated advanced OER catalytic efficiency and selectivity due to its thoughtful design, which increased the specific surface area and enhanced the number and uniformity of Ir and Fe species. The optimized IrFe/NCBp composite showed superior OER performance and excellent durability compared to commercial catalysts. It effectively reduced the electrolytic voltage and achieved efficient Pb recovery.
DALTON TRANSACTIONS
(2023)
Article
Green & Sustainable Science & Technology
G. Jiang, J. Pan, K. Che, W. Deng, Y. Sun, Y. Wu, H. Yuan, J. Gu, Y. Gu, W. Zhang, M. Zhao, Y. Chen
Summary: This review focuses on the properties, modifications and applications of carbon black derived from waste tires (CBp) for enhanced quality. The formation mechanism and the effect of pyrolysis condition on the properties of CBp are discussed in detail. The research progress on various modification methods for CBp material and its applications in energy materials, rubber reinforcement and other fields are presented. The future development trends and challenges of CBp are proposed.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Multidisciplinary
Jinlu Song, Lulu Chai, Anuj Kumar, Man Zhao, Yanzhi Sun, Xiaoguang Liu, Junqing Pan
Summary: This paper focuses on the precise control of pore volume and size in carbon nanoscale materials for achieving high capacity and rate performances of charge/discharge. By regulating the composition of InZn-MIL-68, the diameter and wall pore size of hollow carbon tubes are accurately tuned, resulting in high-capacity storage and fast exchange of Na+ ions and charges. The spacious hollow structure, distinctive porosity, and open ends of the tube wall contribute to the superior characteristics of the carbon nanotubes.
Article
Chemistry, Multidisciplinary
Lulu Chai, Jinlu Song, Anuj Kumar, Rui Miao, Yanzhi Sun, Xiaoguang Liu, Ghulam Yasin, Xifei Li, Junqing Pan
Summary: A new super fuel cell (SFC) with single-atomic Pt on hollow porous carbon nanorods catalyst has been proposed, achieving ultrahigh output power through the parallel discharge of specific electric double-layer capacitance (EDLC) and oxygen reduction reaction (ORR). The synergistic effect of Pt single-atoms anchored on carbon defects significantly enhances electron transfer and catalytic activity, enabling rapid discharge and self-charging capability. This offers a new pathway to boost the power density of fuel cells with extra-low Pt loading.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Rui Miao, Chaohua Sun, Jipeng Li, Yanzhi Sun, Yongmei Chen, Junqing Pan, Yang Tang, Pingyu Wan
Summary: This paper presents a facile and effective strategy to regulate the morphology of a zinc-based metal-organic framework (Zn-BTC) by adjusting the ethanol content in a solvent, which can effectively change the pore structure of Zn-BTC derived porous carbon (PC). The optimal PC prepared in 50% ethanol displays a rodlike structure with a large specific surface area (SSA) and excellent electrochemical stability. This method provides a new pathway for the preparation of carbon materials with an adjustable pore size for high-performance supercapacitors.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Jipeng Li, Yanzhi Sun, Yongmei Chen, Yang Tang, Junqing Pan, Pingyu Wan
Summary: In this study, a new MOF material, His-MIL-53(Al), was prepared and its performance in the adsorption of Pb(ii) from aqueous solution was investigated. The modified MOF material, His-MIL-53(Al), showed excellent adsorption performance for Pb(ii) with a maximum adsorption capacity of 50.13 mg g(-1), which is much higher than the original material, MIL-53(Al). The results also demonstrated that the prepared material has good recoverability.
NEW JOURNAL OF CHEMISTRY
(2022)
Review
Chemistry, Physical
Muhammad Imran, Muhammad Ikram, Sobia Dilpazir, Bushra Naseem, Yanjun Lin, Junqing Pan
Summary: ZIF-derived electrocatalysts, especially ZIF-67-based materials, have shown great potential for the oxygen reduction reaction (ORR) in clean energy systems. This review summarizes the recent progress and strategies for designing more efficient catalysts based on ZIF-67, and discusses the remaining challenges and future perspectives in this field.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
