Strategic design of self-generated Ni-N-C hybrid sites in 3D network structures as counter electrodes in photovoltaics
The technical bottleneck of carbon materials as counter electrodes (CEs) lies in their limited electrical conductivity, extended ion diffusion paths, poor dispersion, and high contact resistance. Problem-oriented in-situ self-grown N-doped CNTs-coated Ni nanoparticles based on N-doped carbonaceous s...
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| Format: | Article |
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KeAi Communications Co., Ltd.
2023-03-01
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| Series: | Resources Chemicals and Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772443322000563 |
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| author | Genhui Teng Baorui Liu Zhe Kang Yanhui Xie Dongying Hu Dawei Zhao |
| author_facet | Genhui Teng Baorui Liu Zhe Kang Yanhui Xie Dongying Hu Dawei Zhao |
| author_sort | Genhui Teng |
| collection | DOAJ |
| description | The technical bottleneck of carbon materials as counter electrodes (CEs) lies in their limited electrical conductivity, extended ion diffusion paths, poor dispersion, and high contact resistance. Problem-oriented in-situ self-grown N-doped CNTs-coated Ni nanoparticles based on N-doped carbonaceous structures derived from pitaya peel (PC) are adopted to construct Ni-N-C hybrid 3D ionized network sites (Ni@NCNTs/PC-4) as CEs. Structural characterization, micromorphological and chemical composition analyses revealed the 3D network structure of Ni@NCNTs/PC-4 with abundant active sites. They effectively shorten the diffusion distance of I3− ions with a smaller charge transfer resistance (5.21 Ω) than that of PC (12.53 Ω). DSSCs based on Ni@NCNTs/PC-4 display good optoelectronic properties, in which the short-circuit current density (Jsc) is 13.27 mA/cm2, higher than those of Pt (11.66 mA/cm2) and PC (6.99 mA/cm2). The PCE value (5.13%) of DSSCs based on Ni@NCNTs/PC-4 is also higher than that of DSSCs based on PC (2.47%). Overall, this work provides a preliminary research and new ideas for further in-depth study of biomass-derived 3D structured-carbons that contribute to key electrodes in DSSCs. |
| first_indexed | 2024-03-12T01:56:04Z |
| format | Article |
| id | doaj.art-53aa4ad91ab7450182df928b4d00568c |
| institution | Directory Open Access Journal |
| issn | 2772-4433 |
| language | English |
| last_indexed | 2024-03-12T01:56:04Z |
| publishDate | 2023-03-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Resources Chemicals and Materials |
| spelling | doaj.art-53aa4ad91ab7450182df928b4d00568c2023-09-08T04:34:19ZengKeAi Communications Co., Ltd.Resources Chemicals and Materials2772-44332023-03-0121110Strategic design of self-generated Ni-N-C hybrid sites in 3D network structures as counter electrodes in photovoltaicsGenhui Teng0Baorui Liu1Zhe Kang2Yanhui Xie3Dongying Hu4Dawei Zhao5School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China; MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials & Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China; MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials & Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China; MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials & Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China; MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials & Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, ChinaSchool of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China; MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials & Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China; Corresponding author at: Dongying Hu School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China.Key Laboratory on Resources Chemicals and Materials of Ministry of Education, Shenyang University of Chemical Technology, Shenyang 110142, P. R. ChinaThe technical bottleneck of carbon materials as counter electrodes (CEs) lies in their limited electrical conductivity, extended ion diffusion paths, poor dispersion, and high contact resistance. Problem-oriented in-situ self-grown N-doped CNTs-coated Ni nanoparticles based on N-doped carbonaceous structures derived from pitaya peel (PC) are adopted to construct Ni-N-C hybrid 3D ionized network sites (Ni@NCNTs/PC-4) as CEs. Structural characterization, micromorphological and chemical composition analyses revealed the 3D network structure of Ni@NCNTs/PC-4 with abundant active sites. They effectively shorten the diffusion distance of I3− ions with a smaller charge transfer resistance (5.21 Ω) than that of PC (12.53 Ω). DSSCs based on Ni@NCNTs/PC-4 display good optoelectronic properties, in which the short-circuit current density (Jsc) is 13.27 mA/cm2, higher than those of Pt (11.66 mA/cm2) and PC (6.99 mA/cm2). The PCE value (5.13%) of DSSCs based on Ni@NCNTs/PC-4 is also higher than that of DSSCs based on PC (2.47%). Overall, this work provides a preliminary research and new ideas for further in-depth study of biomass-derived 3D structured-carbons that contribute to key electrodes in DSSCs.http://www.sciencedirect.com/science/article/pii/S2772443322000563Ni-dopingBiomass-derived carbonDye-sensitized solar cellN-doped carbon nanotubes |
| spellingShingle | Genhui Teng Baorui Liu Zhe Kang Yanhui Xie Dongying Hu Dawei Zhao Strategic design of self-generated Ni-N-C hybrid sites in 3D network structures as counter electrodes in photovoltaics Resources Chemicals and Materials Ni-doping Biomass-derived carbon Dye-sensitized solar cell N-doped carbon nanotubes |
| title | Strategic design of self-generated Ni-N-C hybrid sites in 3D network structures as counter electrodes in photovoltaics |
| title_full | Strategic design of self-generated Ni-N-C hybrid sites in 3D network structures as counter electrodes in photovoltaics |
| title_fullStr | Strategic design of self-generated Ni-N-C hybrid sites in 3D network structures as counter electrodes in photovoltaics |
| title_full_unstemmed | Strategic design of self-generated Ni-N-C hybrid sites in 3D network structures as counter electrodes in photovoltaics |
| title_short | Strategic design of self-generated Ni-N-C hybrid sites in 3D network structures as counter electrodes in photovoltaics |
| title_sort | strategic design of self generated ni n c hybrid sites in 3d network structures as counter electrodes in photovoltaics |
| topic | Ni-doping Biomass-derived carbon Dye-sensitized solar cell N-doped carbon nanotubes |
| url | http://www.sciencedirect.com/science/article/pii/S2772443322000563 |
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