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Xie X, Xu L, Zeng Q, Zhang Z, Xu Z, Yin C, Wang X. A NiMOF integrated with conductive materials for efficient bifunctional electrocatalysis of urea oxidation and oxygen evolution reactions. Dalton Trans 2024; 53:2565-2574. [PMID: 38221875 DOI: 10.1039/d3dt03456a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
The development of urea oxidation reaction (UOR) and oxygen evolution reaction (OER) bifunctional electrocatalysts has dual significance in promoting hydrogen energy production and urea-rich wastewater treatment. Herein, a carboxylated multi-walled carbon nanotube (MWCNT-COOH)-ferrocene carboxylic acid (Fc-COOH) modulated NiMOF hybrid material (MWCNT-NiMOF(Fc)) has been synthesized for dual electrocatalysis of the UOR and OER. The material characterization results indicated that MWCNT-COOH and Fc-COOH were integrated into the framework structure of the NiMOF. The direct interaction between the NiMOF and MWCNT/Fc facilitated electron transfer in the hybrid material and led to lattice strain, which improved the charge transfer kinetics, promoted the exposure of more unsaturated Ni sites, and increased the electrochemically active surface area. These factors together enhanced the electrocatalytic activity of MWCNT-NiMOF(Fc) towards the UOR and OER. Using a glassy carbon electrode as the substrate, MWCNT-NiMOF(Fc) exhibited low potential requirements, low Tafel slopes, and high stability. In overall urea and water splitting electrolysis cells, the excellent UOR and OER dual functional catalytic ability and enormous practical application potential of the MWCNT-NiMOF(Fc) modified foam nickel electrode were further demonstrated. On the basis of the above research, the influence of a KOH environment on urea electrolysis was further studied, and the urea electrolysis products were analyzed, promoting a more comprehensive understanding of the catalytic performance of MWCNT-NiMOF(Fc) for urea oxidation. This study provides a new approach for developing high-performance NiMOF-based electrocatalysts for challenging bifunctional UOR/OER applications, and has potential application value in hydrogen production from urea-containing wastewater electrolysis.
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Affiliation(s)
- Xiaopei Xie
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Liqiang Xu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
- Shandong Tianyi Chemical Co., Ltd, Weifang 262737, China
| | - Qingsheng Zeng
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Zhaona Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Zhiqi Xu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Chuanxia Yin
- Marine Development and Fisheries Bureau of Kenli Distinct, Dongying 257500, China
| | - Xinxing Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
- Xinjiang Blue Ridge Tunhe Degradable Materials Co., Ltd, Changji 831100, China
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Jagannathan M, Dhinasekaran D, Rajendran AR, Cho S. A Review of Electroactive Nanomaterials in the Detection of Nitrogen-Containing Organic Compounds and Future Applications. BIOSENSORS 2023; 13:989. [PMID: 37998164 PMCID: PMC10669399 DOI: 10.3390/bios13110989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/03/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023]
Abstract
Electrochemical and impedimetric detection of nitrogen-containing organic compounds (NOCs) in blood, urine, sweat, and saliva is widely used in clinical diagnosis. NOC detection is used to identify illnesses such as chronic kidney disease (CKD), end-stage renal disease (ESRD), cardiovascular complications, diabetes, cancer, and others. In recent years, nanomaterials have shown significant potential in the detection of NOCs using electrochemical and impedimetric sensors. This potential is due to the higher surface area, porous nature, and functional groups of nanomaterials, which can aid in improving the sensing performance with inexpensive, direct, and quick-time processing methods. In this review, we discuss nanomaterials, such as metal oxides, graphene nanostructures, and their nanocomposites, for the detection of NOCs. Notably, researchers have considered nanocomposite-based devices, such as a field effect transistor (FET) and printed electrodes, for the detection of NOCs. In this review, we emphasize the significant importance of electrochemical and impedimetric methods in the detection of NOCs, which typically show higher sensitivity and selectivity. So, these methods will open a new way to make embeddable electrodes for point-of-detection (POD) devices. These devices could be used in the next generation of non-invasive analysis for biomedical and clinical applications. This review also summarizes recent state-of-the-art technology for the development of sensors for on-site monitoring and disease diagnosis at an earlier stage.
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Affiliation(s)
- Mohanraj Jagannathan
- Department of Electronic Engineering, Gachon University, Seongnam-si 13210, Republic of Korea;
| | - Durgalakshmi Dhinasekaran
- Department of Medical Physics, College of Engineering Campus, Anna University, Chennai 600 025, Tamil Nadu, India;
| | - Ajay Rakkesh Rajendran
- Functional Nano-Materials (FuN) Laboratory, Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India;
| | - Sungbo Cho
- Department of Electronic Engineering, Gachon University, Seongnam-si 13210, Republic of Korea;
- Gachon Advanced Institute for Health Science & Technology, Gachon University, Incheon 21999, Republic of Korea
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Zhang Y, Wu P, Qiao N, Yu Z, Ma L. Surface Structure Engineering of Two‐Dimensional Ni(OH)
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with Enhanced Urea Oxidation Performance. ChemistrySelect 2023. [DOI: 10.1002/slct.202204949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Yongxing Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation Department of Materials Science and Engineering Huaibei Normal University 235000 Huaibei P. R. China
| | - Pengxuan Wu
- School of light industry and Chemical engineering Guangdong University of Technology Guangzhou Key lab of Clean Transport Energy and Chemistry Guangdong University of Technology Guangzhou 510006 Guangzhou P. R. China
| | - Nanli Qiao
- Greenstar (Beijing) Environmental Technology Co., Ltd. 100176 Beijing China
| | - Zhengbao Yu
- Greenstar (Beijing) Environmental Technology Co., Ltd. 100176 Beijing China
| | - Liang Ma
- School of light industry and Chemical engineering Guangdong University of Technology Guangzhou Key lab of Clean Transport Energy and Chemistry Guangdong University of Technology Guangzhou 510006 Guangzhou P. R. China
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Ma K, Wang H, Kannan P, Subramanian P. Ni 2P Nanoparticle-Inserted Porous Layered NiO Hetero-Structured Nanosheets as a Durable Catalyst for the Electro-Oxidation of Urea. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3633. [PMID: 36296823 PMCID: PMC9611741 DOI: 10.3390/nano12203633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
The electro-oxidation of urea (EOU) is a remarkable but challenging sustainable technology, which largely needs a reduced electro-chemical potential, that demonstrates the ability to remove a notable harmful material from wastewater and/or transform the excretory product of humans into treasure. In this work, an Ni2P-nanoparticle-integrated porous nickel oxide (NiO) hetero-structured nanosheet (Ni2P@NiO/NiF) catalyst was synthesized through in situ acid etching and a gas-phase phosphating process. The as-synthesized Ni2P@NiO/NiF catalyst sample was then used to enhance the electro-oxidation reaction of urea with a higher urea oxidation response (50 mA cm-2 at 1.31 V vs. RHE) and low onset oxidation potential (1.31 V). The enhanced activity of the Ni2P@NiO/NiF catalyst was mainly attributed to effective electron transport after Ni2P nanoparticle insertion through a substantial improvement in active sites due to a larger electrochemical surface area, and a faster diffusion of ions occurred via the interactive sites at the interface of Ni2P and NiO; thus, the structural reliability was retained, which was further evidenced by the low charge transfer resistance. Further, the Ni2P nanoparticle insertion process into the NiO hetero-structured nanosheets effectively enabled a synergetic effect when compared to the counter of the Ni2P/NiF and NiO/NiF catalysts. Finally, we demonstrate that the as-synthesized Ni2P@NiO/NiF catalyst could be a promising electrode for the EOU in urea-rich wastewater and human urine samples for environmental safety management. Overall, the Ni2P@NiO/NiF catalyst electrode combines the advantages of the Ni2P catalyst, NiO nanosheet network, and NiF current collector for enhanced EOU performance, which is highly valuable in catalyst development for environmental safety applications.
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Affiliation(s)
- Kun Ma
- Department of Internet, Jiaxing Vocational Technical College, Jiaxing 314001, China
| | - Hui Wang
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Palanisamy Kannan
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China
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Gagrani N, Vora K, Jagadish C, Tan HH. Thin Sn xNi yO z Films as p-Type Transparent Conducting Oxide and Their Application in Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:37101-37109. [PMID: 35917233 DOI: 10.1021/acsami.2c04890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The development of good-quality p-type transparent conducting oxides (TCOs) is essential to realize the full potential of TCOs for transparent electronics. This study investigates various optical and electrical properties of SnxNiyOz under different deposition conditions to achieve high-performance p-type TCOs. We found that a film with 20% O2/Ar deposited at room temperature exhibits the highest p-type conductivity with a carrier concentration of 2.04 × 1017 cm-3, a resistivity of 14.01 Ωcm, and a Hall mobility of 7.7 cm2 V-1 S-1. We also studied the elemental properties of a SnxNiyOz film and the band alignment at the SnxNiyOz/InP interface and found reasonably large values of the conduction band offset (CBO) and valence band offset (VBO). Finally, we demonstrate stable light-emitting diodes (LEDs) with n-InP nanowires (NWs) conformably coated with a p-SnxNiyOz structure. Several films and devices were fabricated and tested over a span of 6 months, and we observed similar characteristics. This confirms the stability and reliability of the films as well as the reproducibility of the LEDs. We also investigated the temperature-dependent behavior of these LEDs and observed an additional peak due to a zinc blende/wurtzite (ZB/WZ) transition at the InP substrate and NW interface at ∼98 K and below. This study provides promising results of SnxNiyOz as a potential p-type TCO candidate for applications in electronics and optoelectronics.
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Wang X, Li J, Duan Y, Li J, Wang H, Yang X, Gong M. Electrochemical Urea Oxidation in Different Environment: From Mechanism to Devices. ChemCatChem 2022. [DOI: 10.1002/cctc.202101906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xue Wang
- East China University of Science and Technology School of Mechanical and Power Engineering CHINA
| | - Jianping Li
- East China University of Science and Technology School of Resource and Environmental Engineering CHINA
| | - Yanghua Duan
- University of California Berkeley Civil and Environmental Engineering UNITED STATES
| | - Jianan Li
- East China University of Science and Technology School of Resource and Environmental Engineering CHINA
| | - Hualin Wang
- East China University of Science and Technology School of Resource and Environmental Engineering CHINA
| | - Xuejing Yang
- East China University of Science and Technology National Engineering Laboratory for Industrial Wastewater Treatment 130 Meilong Road 200237 Shanghai CHINA
| | - Ming Gong
- Fudan University Department of Chemistry CHINA
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