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>In situ growth of phosphorized ZIF-67-derived amorphous CoP/Cu2O@CF electrocatalyst
《化学科学与工程前沿(英文)》 2023年 第17卷 第10期 页码 1430-1439 doi: 10.1007/s11705-023-2320-1
Shenghua Ye, Gaoren Li
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 473-480 doi: 10.1007/s11705-018-1724-9
The polypyrrole(PPy)@NiCo hybrid nanotube arrays have been successfully fabricated as a high performance electrocatalyst for hydrogen evolution reaction (HER) in alkaline solution. The strong electronic interactions between PPy and NiCo alloy are confirmed by X-ray photoelectron spectroscopy and Raman spectra. Because these interations can remarkably reduce the apparent activation energy (Ea) for HER and enhance the turnover frequency of catalysts, the electrocatalytic performance of PPy@NiCo hybrid nanotube arrays are significantly improved. The electrochemical tests show that the PPy@NiCo hybrid catalysts exhibit a low overpotential of ~186 mV at 10.0 mA·cm−2 and a small tafel slope of 88.6 mV·deg−1 for HER in the alkaline solution. The PPy@NiCo hybrid nanotubes also exhibit high catalytic activity and high stability for HER.
关键词: NiCo alloy polypyrrole hybrid nanotube electrocatalyst hydrogen evolution reaction
Erratum to: Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen
Shenghua Ye, Gaoren Li
《化学科学与工程前沿(英文)》 2019年 第13卷 第4期 页码 845-845 doi: 10.1007/s11705-019-1879-z
《化学科学与工程前沿(英文)》 2023年 第17卷 第11期 页码 1707-1717 doi: 10.1007/s11705-023-2308-x
关键词: nanoparticle sulfur vacancy porous carbon nanofiber transition metal sulfides electrolysis
NiFeRuOx nanosheets on Ni foam as an electrocatalyst for efficient
《化学科学与工程前沿(英文)》 2023年 第17卷 第11期 页码 1698-1706 doi: 10.1007/s11705-023-2334-8
关键词: NiFeRuOx nanosheets Ni foam electrocatalysis overall seawater splitting solar-driven system
Yuyao Ji, Min Ma, Xuqiang Ji, Xiaoli Xiong, Xuping Sun
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 467-472 doi: 10.1007/s11705-018-1717-8
It is highly attractive but still remains a great challenge to develop an efficient electrocatalyst for oxygen evolution reaction under nearly neutral conditions. In this work, we report the transformation of Ni3S2 nanowire array on nickel foam into the amorphous nickel carbonate nanowire array on nickel foam (NiCO3/NF). The resulting NiCO3/NF shows high electrocatalytic activity towards water oxidation and affords current density of 50 mA·cm−2 at overpotential of 395 mV in 1.0 mol·L−1 KHCO3. Moreover, this NiCO3/NF is also durable with a long-term electrochemical durability of 60 h. This catalyst electrode achieves a high turnover frequency of 0.21 mol O2·s−1 at the overpotential of 500 mV.
关键词: water oxidation NiCO3/NF nearly neutral conditions superior activity electocatalyst
Miaomiao Tong, Lei Wang, Peng Yu, Xu Liu, Honggang Fu
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 417-424 doi: 10.1007/s11705-018-1711-1
A highly active bi-functional electrocatalyst towards both hydrogen and oxygen evolution reactions is critical for the water splitting. Herein, a self-supported electrode composed of 3D network nanostructured NiCoP nanosheets grown on N-doped carbon coated Ni foam (NiCoP/NF@NC) has been synthesized by a hydrothermal route and a subsequent phosphorization process. As a bifunctional electrocatalyst, the NiCoP/NF@NC electrode needs overpotentials of 31.8 mV for hydrogen evolution reaction and 308.2 mV for oxygen evolution reaction to achieve the current density of 10 mA·cm−2 in 1 mol·L−1 KOH electrolyte. This is much better than the corresponding monometal catalysts of CoP/NF@NC and NiP/NF@NC owing to the synergistic effect. NiCoP/NF@NC also exhibits low Tafel slope, and excellent long-term stability, which are comparable to the commercial noble catalysts of Pt/C and RuO2.
关键词: bimetallic phosphides N-doped carbon self-support hydrogen evolution oxygen evolution
《化学科学与工程前沿(英文)》 2022年 第16卷 第3期 页码 376-383 doi: 10.1007/s11705-021-2062-x
关键词: interface engineering CoS/CeO2 electrodeposition electrocatalyst oxygen evolution reaction
Copper nanoparticles/polyaniline-derived mesoporous carbon electrocatalysts for hydrazine oxidation
Tao Zhang, Tewodros Asefa
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 329-338 doi: 10.1007/s11705-018-1741-8
Copper nanoparticles-decorated polyaniline-derived mesoporous carbon that can serve as noble metal-free electrocatalyst for the hydrazine oxidation reaction (HzOR) is synthesized via a facile synthetic route. The material exhibits excellent electrocatalytic activity toward HzOR with low overpotential and high current density. The material also remains stable during the electrocatalytic reaction for long time. Its good electrocatalytic performance makes this material a promising alternative to conventional noble metal-based catalysts (e.g., Pt) that are commonly used in HzOR-based fuel cells.
关键词: copper nanoparticles mesoporous carbon noble metal-free electrocatalyst hydrazine oxidation reaction polyaniline
《化学科学与工程前沿(英文)》 2022年 第16卷 第6期 页码 930-938 doi: 10.1007/s11705-021-2130-2
关键词: Ammonia electro-oxidation reaction electrocatalyst supports platinum nitrogen doped graphene tungsten carbide
《化学科学与工程前沿(英文)》 2021年 第15卷 第6期 页码 1487-1499 doi: 10.1007/s11705-021-2085-3
关键词: MOF derivative graphene electrocatalyst oxygen reduction reaction oxygen evolution reaction hydrogen evolution reaction
《化学科学与工程前沿(英文)》 2023年 第17卷 第5期 页码 570-580 doi: 10.1007/s11705-022-2247-y
关键词: bimetallic metal–organic frameworks bifunctional electrocatalyst density functional theory oxygen reduction reaction oxygen evolution reaction
Synthesis of cobalt vanadium nanomaterials for efficient electrocatalysis of oxygen evolution
Meifeng Hao, Mingshu Xiao, Lihong Qian, Yuqing Miao
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 409-416 doi: 10.1007/s11705-017-1689-0
A low-cost and high-activity catalyst for oxygen evolution reaction (OER) is the key to the water splitting technology for hydrogen generation. Here we report the use of three solvents, DMF, ethanol and glycol, in the solvothermal synthesis of three nano-catalysts, Co3(VO4)2-I, Co3(VO4)2-II, and Co3(VO4)2-III, respectively. Transmission electron microscope shows Co3(VO4)2-I, II, and III exist as ultrafine nanosheets, ultrathin nanofilms, and ultrafine nanosheet-comprised microspheres, respectively. These Co3(VO4)2 catalysts exhibit OER electrocatalysis, among which the Co3(VO4)2-II shows the lowest onset overpotential of 310 mV and only requires a small overpotential of 330 mV to drive current density of 10 mA/cm2. Due to their high surface free energy, the ultrathin nanofilms of Co3(VO4)2-II exhibits a good immobilization effect with the high electrocatalytic activity for OER.
关键词: Co3(VO4)2 oxygen evolution reaction electrocatalyst water splitting
Huixin Zhang, Jinying Liang, Bangwang Xia, Yang Li, Shangfeng Du
《化学科学与工程前沿(英文)》 2019年 第13卷 第4期 页码 695-701 doi: 10.1007/s11705-019-1838-8
关键词: ionic liquid PEMFC electrode oxygen reduction reaction electrocatalyst adsorption
标题 作者 时间 类型 操作
Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen evolution reaction
Shenghua Ye, Gaoren Li
期刊论文
Erratum to: Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen
Shenghua Ye, Gaoren Li
期刊论文
Sulfur-deficient CoNi2S4 nanoparticles-anchored porous carbon nanofibers as bifunctional electrocatalyst
期刊论文
Nickel-carbonate nanowire array: An efficient and durable electrocatalyst for water oxidation under nearly
Yuyao Ji, Min Ma, Xuqiang Ji, Xiaoli Xiong, Xuping Sun
期刊论文
nanostructured NiCoP nanosheets supported on N-doped carbon coated Ni foam as a highly active bifunctional electrocatalyst
Miaomiao Tong, Lei Wang, Peng Yu, Xu Liu, Honggang Fu
期刊论文
Interface engineering for enhancing electrocatalytic oxygen evolution reaction of CoS/CeO heterostructures
期刊论文
Copper nanoparticles/polyaniline-derived mesoporous carbon electrocatalysts for hydrazine oxidation
Tao Zhang, Tewodros Asefa
期刊论文
Platinum on nitrogen doped graphene and tungsten carbide supports for ammonia electro-oxidation reaction
期刊论文
Graphene-reinforced metal-organic frameworks derived cobalt sulfide/carbon nanocomposites as efficient multifunctional electrocatalysts
期刊论文
Heterometallic cluster-based organic frameworks as highly active electrocatalysts for oxygen reduction and oxygen evolution reaction: a density functional theory study
期刊论文
Synthesis of cobalt vanadium nanomaterials for efficient electrocatalysis of oxygen evolution
Meifeng Hao, Mingshu Xiao, Lihong Qian, Yuqing Miao
期刊论文