Article
Chemistry, Multidisciplinary
Zepeng Lv, Wansen Ma, Meng Wang, Jie Dang, Kailiang Jian, Dong Liu, Dejun Huang
Summary: The passage introduces an outstanding electrocatalyst with multiple heterostructure interfaces and a 3D porous structure, clarifying the mechanisms of enhanced electrocatalytic activity through multiple characterizations and density functional calculations. Specifically, the fabricated CPN@TC catalyst demonstrates excellent HER activity in 1 M KOH, attributed to its multiheterointerfaces for water and hydrogen adsorption, fine conductivity for electron transmission, and well-designed structure for rapid ion and gas transport. The study suggests that the synthetic strategy can be extended to enhance the catalytic performance of transition-metal-based phosphides.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Xiang Lei, Junchen Qing, Leiting Weng, Shumei Li, Ruzheng Peng, Wei Wang, Jinliang Wang
Summary: In this study, FeP/CoP heterogeneous materials with a unique porous morphology were designed and synthesized as oxygen evolution reaction (OER) catalysts, demonstrating excellent catalytic activity and stability. The results provide new ideas for designing efficient metal phosphide-based OER catalysts.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Hang Lei, Shangjing Yang, Runquan Lei, Qing Zhong, Qixiang Wan, Zhibin Li, Liang Ma, Shaozao Tan, Zilong Wang, Wenjie Mai
Summary: A novel 3D NiFe/MG aerogel was developed as a cathode material for wearable Zn-air batteries, exhibiting superior bifunctional activity. The aerogel possesses a large specific surface area, abundant functional groups, and excellent conductivity, promoting the diffusion of electrolyte and electron transfer.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Wenli Tian, Dengchao Zheng, Xun Sun, Xin Guan, Hao Feng, Chengyi Li, Minglei Yan, Yadong Yao
Summary: Rational design of transition-metal phosphide (TMPs)-based electrocatalysts can effectively enhance the oxygen evolution reaction (OER). The synthesized Ni2P/Fe3O4 porous nanosheets arrays exhibit abundant active sites and excellent OER performance, providing insights into improving energy conversion efficiency under alkaline conditions.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
A. Touni, Ch Papoulia, E. Pavlidou, D. Karfaridis, D. Lambropoulou, S. Sotiropoulos
Summary: Mixed Ir-Pt electrocatalytic films were prepared on Ti metal supports via galvanic deposition, and their bifunctional electrocatalytic performance was evaluated. The results demonstrated satisfactory performance of the prepared films towards both oxygen evolution and reduction reactions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Wenqi Ma, Dongyang Li, Liling Liao, Haiqing Zhou, Fangming Zhang, Xuan Zhou, Yuxue Mo, Fang Yu
Summary: This study reports a heterogeneous electrocatalyst constructed by growing highly dispersed iron-rich bimetallic phosphide nanoparticles on metallic Ni3N, which exhibits outstanding bifunctional catalytic activities for alkaline seawater splitting. The optimal Fe0.74Co0.26P/Ni3N and Fe2P/Ni3N electrocatalysts demand only 113 and 212 mV for hydrogen and oxygen evolution reactions in 1 m KOH, respectively, substantially accelerating overall water/seawater electrolysis. Particularly, Fe2P/Ni3N shows an unprecedented overpotential of 302 mV at 500 mA cm(-2), surpassing most of the reported non-noble electrocatalysts. This work provides a new approach for developing high-performance electrocatalysts for seawater splitting.
Article
Chemistry, Physical
Han Yang, Mengwei Yuan, Di Wang, Zemin Sun, Huifeng Li, Genban Sun
Summary: The manganese nickel phosphide nanosheets (MnxNi2-xP) developed in this work serve as a bifunctional electrocatalyst towards OER and UOR with superior performance, requiring low overpotential and showing impressive longevity. Experimental and theoretical methods confirm MnxNi2-xP as an effective bifunctional electrocatalyst for both OER and UOR due to its benign electronic conductivity and efficient active sites for the OH- adsorption.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Songjiang Wu, Haiyan Chen, Chunguang Jia, Li Liao, Kai Chen, Suqin Ci, Qiuhua Xu, Zhenhai Wen
Summary: We demonstrated a facile pyrolysis method for synthesizing nitrogen-doped carbon-supported NiFe alloys (NiFe-NC) that exhibit excellent electrocatalytic activity for both CO2 reduction reaction (CO2RR) and oxygen reduction reaction (ORR). The NiFe-NC catalyst showed unprecedented CO2RR activity with a high CO faradaic efficiency and achieved a industrial current density and CO FE comparable to commercial catalysts for CO2RR. It also demonstrated impressive ORR performance comparable to commercial Pt/C catalysts. Moreover, the NiFe-NC was successfully used as a cathode material in Zn-air batteries and showed high power density. A self-driven CO2 flow electrolysis system powered by two series-connected NiFe-NC-based Zn-air batteries was designed and showed high efficiency in converting CO2 to CO. The results of this study provide insights for the development of efficient electrocatalysts for energy conversion and storage.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Jin Hu, Shengli Zhu, Yanqin Liang, Shuilin Wu, Zhaoyang Li, Shuiyuan Luo, Zhenduo Cui
Summary: This study reports a novel method for fabricating three-dimensional porous catalyst for water splitting with outstanding electrocatalytic performance, providing guidance for rational design and development of heterostructure electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Fuzhen Zhao, Xin Zheng, Xinyu Mao, Huicong Liu, Liqun Zhu, Weiping Li, Hui Ye, Haining Chen
Summary: The stability and activity of oxygen evolution reaction (OER) catalysts are improved by constructing a 1D/2D heterostructure of NiFeP/NiFe-OH. The heterostructure exhibits excellent stability and high catalytic activity for OER.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Inorganic & Nuclear
Zunpeng Hu, Senjie Dong, Quanfeng He, Zihao Chen, Ding Yuan
Summary: A 3D hierarchically flexible self-supporting electrode with a hollow heterostructure was successfully constructed for rechargeable Zn-air batteries. The electrode exhibited high catalytic activity, low overpotentials, and excellent stability. This work not only provides an advanced hollow heterostructured catalyst for sustainable energy systems and wearable electronic devices but also reveals the role of interfacial electron modulation in catalytic performance enhancement.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Longlong Liu, Zunpeng Hu, Minghui Wang, Jinliang Ma, Zihao Chen, Xin Ning, Ding Yuan
Summary: This study presents a simple method for preparing a flexible self-supporting bifunctional catalyst, which shows superior electrocatalytic performances for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) in zinc-air batteries. The catalyst is formed by coupling ultrathin NiFe-based layered double hydroxide nanosheets with a metal-organic framework-derived carbon nanoflake array, and introducing Co nanoparticles anchored onto nitrogen-doped porous carbon nanoflakes. The catalyst demonstrates excellent electrocatalytic activities, mechanical flexibility, and is promising for wearable and flexible electronic devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Xupo Liu, Xuyun Guo, Mingxing Gong, Tonghui Zhao, Jian Zhang, Ye Zhu, Deli Wang
Summary: The study focused on tailored corrosion layers of iron foam for self-supporting electrodes with excellent oxygen evolution reaction (OER) performance. The appropriate electrode potentials for uniformly ordered corrosion layers were identified through comparisons and achieved industrially required high current density with a prominent hydrogen evolution reaction (HER) catalyst.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Mahshid Mokhtarnejad, Erick L. Ribeiro, Dibyendu Mukherjee, Bamin Khomami
Summary: In this study, hybrid nanocomposites (HNCs) based on manganese oxides (MnOx/Mn3O4) and reduced graphene oxide (rGO) were synthesized as active electrodes for energy storage devices. The active material was composed of MnOx/Mn3O4 nanorods and nanoparticles embedded in rGO nanosheets. The performance of the active layer was highly correlated with the MnOx/Mn3O4 to rGO ratio and the morphology of MnOx/Mn3O4 nanostructures in HNCs. Electrochemical characterizations showed that the MnOx/Mn3O4-rGO composite exhibited significantly higher specific capacitance compared to commercially available Mn3O4-graphene nanocomposites. The study has paved the way for the use of LASiS-based synthesized functional material in combination with additive manufacturing techniques for all-printed electronics with superior performance.
Article
Chemistry, Physical
Xuefeng Li, Chuanqi Feng, Feng Wang, Huimin Wu
Summary: This paper investigates the effect of etching conditions on the performance of nickel foam and the synthesis of Ni2P. The results show that the concentration of HF, temperature, and etching time impact the performance of the nickel foam. Additionally, the Ni2P synthesized on the optimal nickel foam exhibits excellent catalytic performance for both the hydrogen evolution reaction and urea oxidation reaction.