Article
Chemistry, Inorganic & Nuclear
Athma E. Praveen, Viplove Mishra, Sagar Ganguli, Aditi Chandrasekar, Venkataramanan Mahalingam
Summary: Rational control of the reaction parameters is highly important for synthesizing active electrocatalysts. In this study, a one-step hydrothermal route was reported to synthesize P-incorporated NiCo2S4, and it was found that the inclusion of P caused the formation of NiCo2S4 in a single step. Computational studies showed that incorporating the optimum amount of P increased the stability of the NiCo2S4 lattice. In addition, experimental results demonstrated that P-incorporated NiCo2S4 exhibited excellent activity for hydrazine oxidation and hydrogen production.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Kun Wang, Qing Wang, Lei Jin, Bingji Huang, Hui Xu, Xingyue Qian, Haiqun Chen, Guangyu He
Summary: The well-controlled hollow heterostructure of Ni3S2/NiCo2S4 with rich heterointerfaces was designed, which exhibited high catalytic activity for the electrocatalytic oxygen evolution reaction (OER) due to the exposure of more active sites and enhanced electron transfer. The unique heterostructure also optimized the binding strength with intermediate species, leading to high stability during a 200-hour test.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Electrochemistry
Ming -Han Tsai, Yaju Juang, Chi-Chang Hu, Lap-Cuong Hua, Biplab Kumar Mahata, Chihpin Huang
Summary: In this study, the direct ammonia electrochemical oxidation (AEO) and selectivity of nitrogen products were investigated using a Cu-deposited nickel foam (Cu/NF) electrode under different initial pH and electrode potentials. The results showed that Cu/NF exhibited higher ammonia removal and conversion rates at pH>9.5 and electrode potential>0.9 V. XPS analysis confirmed the formation of Cu(II) and Ni(III) in the form of CuNi oxyhydroxide during the AEO reaction. The findings suggest that precise control of pH and electrode potential can alter the NiCu oxyhydroxyl species on the Cu/NF electrode surface, thus changing the pathways of ammonia conversion.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Xuecheng Zhou, Huan Yang, Dewei Rao, Xiaohong Yan
Summary: This study reports a new synthesis strategy for successfully growing NixCo3-xS4 nanorods using hydrothermal co-precipitation and sulfuration, achieving superior oxygen evolution reaction (OER) activity. The Ni0.58Co2.42S4 sample with unique morphology and surface valence state configuration helps improve the release of gas products on the catalyst surface, demonstrating excellent OER activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Touseef Ahmed, Muhammad Adeel Asghar, Abid Ali, Zareen Akhter, Saqib Ali, Irfan Ullah, Talha Nisar, Viet Wagner, Sadia Touseef, Aamir Hussain, Ali Haider
Summary: This study focuses on the immobilization of high nuclearity cobalt-containing POM on nickel foam and its performance as an electrocatalyst for water oxidation. The POM-based electrode exhibited excellent catalytic activity in both neutral and basic pH conditions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Harish Singh, Wipula P. R. Liyanage, Manashi Nath
Summary: In this study, nickel selenide nanowires were successfully grown inside carbon nanotubes through one-step chemical vapor deposition, exhibiting excellent electrocatalytic activity and stability for water splitting.
CHEMICAL COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Chun Huang, Chia-Yi Chen, Thou-Jen Whang
Summary: The foam Ni/MnO2/Pd cathode demonstrated a phenol degradation rate of 91.6% at a current density of 2 mA/cm(2) for 2 hours, higher than that of foam Ni/MnO2 and foam Ni/Pd. Furthermore, a thin layer of MnO2 was deposited to immobilize the Pd on the foam Ni/MnO2/Pd cathode, reducing Pd loss in cleaning process and improving reusability without compromising phenol degradation efficiency.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
Jan Niklas Hausmann, Pramod Menezes, Gonela Vijaykumar, Konstantin Laun, Thomas Diemant, Ingo Zebger, Timo Jacob, Matthias Driess, Prashanth W. Menezes
Summary: This article reports a new method of growing hierarchical nanostructures on nickel foam, and successfully doped iron element for oxidation reactions and oxygen evolution reaction. The results show that iron doping is more suitable for oxidation reactions, which can generate higher current density and Faradaic efficiency. In the oxygen evolution reaction, the iron-doped nickel foam electrode can achieve the current density required by industry and maintain stable performance. This article reveals the effects of iron doping and its impact on the reaction mechanism.
ADVANCED ENERGY MATERIALS
(2022)
Review
Chemistry, Inorganic & Nuclear
Cheng Wang, Zhenghao Fei, Yanqing Wang, Fangfang Ren, Yukou Du
Summary: This review summarizes the design and application of Ni-based catalysts for oxygen evolution reaction (OER) at large current densities, with a focus on the morphology and composition regulation of Ni-based electrocatalysts for achieving extraordinary OER performance.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Meng Zheng, Qianqiao Chen, Qin Zhong
Summary: The 1T-MoS2/NiCo2S4 composite grown in situ on carbon cloth exhibits excellent catalytic performance for the hydrogen evolution reaction, making it a promising non-noble catalyst.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Mahendran Mathankumar, Kannimuthu Karthick, Amal Kaitheri Nanda Kumar, Subrata Kundu, Subramanian Balasubramanian
Summary: The catalytic activity of 3d-transition-metal-based electrocatalysts in electrocatalytic water splitting has been significantly enhanced through innovative modifications to the active sites. Thin films of CoS2 were prepared on a carbon cloth using pulsed laser deposition (PLD) technique, resulting in Ni-CoS2 thin films with varying catalyst compositions. Ni10-CoS2 exhibited the lowest overpotential in achieving a benchmarking current density of 10 mA cm(-2) in 1 M KOH, indicating its superior performance in the oxygen evolution reaction (OER).
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Shaoxiong Bai, Liang Chen, Jingjing Bai, Chenghang Lv, Shoudong Xu, Ding Zhang, Haibin Meng, Chunli Guo, Huimin Yang, Chenjing Shang
Summary: High valence vanadium-doped NiV-layered double hydroxides catalyst is used for the selective oxidation of benzylamine, replacing the oxygen evolution reaction. The introduction of vanadium changes the electronic state and Lewis acidic sites on the surface, promoting the conversion of benzylamine. A NiV-LDH based two-electrode electrolyzer coupled with the benzylamine oxidation reaction and hydrogen evolution reaction can achieve high current density at a lower cell voltage compared to conventional water splitting methods.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yutong Jia, Zhikun Xu, Lin Li, Shuangyan Lin
Summary: In this study, a facile approach was proposed to construct NiFe-MOF nanosheets on Fe foam as self-supporting electrodes for the oxygen evolution reaction. The NiFe-MOF/FF electrode showed impressive electrocatalytic performance and outstanding stability.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Zaki N. Zahran, Eman A. Mohamed, Yuta Tsubonouchi, Manabu Ishizaki, Takanari Togashi, Masato Kurihara, Kenji Saito, Tatsuto Yui, Masayuki Yagi
Summary: Researchers have discovered a metal oxide film with excellent performance in the oxygen evolving reaction, achieving lower overpotentials and higher stability through synergistic coupling among ternary metal centers.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Jun Cao, Yueyue Fu, Yu Wang, Jingjing Wang, Yingying Zheng, Jiaqi Pan, Chaorong Li
Summary: In this work, amorphous Co-P modified NiCo2S4 nanorods were used as a bifunctional catalyst for electrocatalytic water splitting in alkaline solution. The amorphous Co-P nanosheets on the surface of NiCo2S4 decreased the energy barrier of hydrogen adsorption-desorption and H2O adsorption, leading to enhanced catalytic performance and reaction kinetics for HER and OER in alkaline media. Consequently, the amorphous/crystalline Co-P/NiCo2S4 nanoarrays exhibited superior performance for full-water-splitting compared to pure NiCo2S4, reducing the cell voltage at 40 mA cm-2 from 1.709 V to 1.665 V.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)