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Zhang J, Zhang X, Shi C, Yu X, Zhou Y, Di L. Plasma-Constructed Co 2P-Ni 2P Heterointerface for Electro‑Upcycling of Polyethylene Terephthalate Plastic to Co-Produce Hydrogen and Formate. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2406767. [PMID: 39246176 DOI: 10.1002/smll.202406767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2024] [Revised: 08/29/2024] [Indexed: 09/10/2024]
Abstract
Integrating electrochemical upcycling of polyethylene-terephthalate (PET) and the hydrogen evolution reaction (HER) is an energy-saving approach for electrolytic hydrogen (H2) production, along with the coproduction of formate. Herein, a novel and rapid strategy of cold plasma phosphating is employed to synthesize Co2P-Ni2P heterointerface decorated on carbon cloth (Co2P-Ni2P/CC) to catalyze H2 generation and reform PET. Notably, the obtained Co2P-Ni2P/CC exhibits eminent ethylene glycol oxidation reaction (EGOR) and HER activities, effectuating low potentials of merely 1.300 and -0.112 V versus RHE at 100 mA cm-2 for the EGOR and HER, respectively, also attaining an ultralow cell bias of 1.300 V at 10 mA cm-2 for EG oxidation assisted-water splitting. DFT and characterization results validate that the as-formed built-in electric fields in the Co2P-Ni2P heterointerface can accelerate electrons transfer and deepen structural self-reconstruction, thereby boosting effectively water dissociation and ethylene glycol (EG) dehydrogenation. Impressively, coupling HER with PET-derived EG-to-formate in a flow-cell electrolyzer assembled with Co2P-Ni2P/CC pair achieves an intriguing formate Faradaic efficiency of 90.6% and an extraordinary stable operation of over 70 h at 100 mA cm-2. The work exemplifies a facile and effective strategy for synthesizing metal phosphides electrocatalysts with extraordinary performance toward H2 generation of water splitting and recycling of PET.
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Affiliation(s)
- Jingsen Zhang
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Xiuling Zhang
- College of Physical Science and Technology, Dalian University, Dalian, 116622, P. R. China
| | - Chuan Shi
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Xinyao Yu
- School of Materials Science and Engineering, Institute of Energy Hefei Comprehensive National Science Center (Anhui Energy Laboratory), Anhui University, Hefei, 230601, P. R. China
| | - Yitong Zhou
- School of Materials Science and Engineering, Institute of Energy Hefei Comprehensive National Science Center (Anhui Energy Laboratory), Anhui University, Hefei, 230601, P. R. China
| | - Lanbo Di
- College of Physical Science and Technology, Dalian University, Dalian, 116622, P. R. China
- State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, 116024, P. R. China
- Key Laboratory of Advanced Technology for Aerospace Vehicles of Liaoning Province, Dalian University of Technology, Dalian, 116024, P. R. China
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2
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Le TD, Kim DS, Tran TV, Urupalli B, Shin GS, Oh GJ, Yu YT. Electronic Structure Engineering of Pt-Ni Alloy NPs by Coupling of Gold Single Atoms on N-Doped Carbon for Highly Efficient Oxygen Reduction Reaction and Hydrogen Evolution Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311971. [PMID: 38727202 DOI: 10.1002/smll.202311971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/17/2024] [Indexed: 08/23/2024]
Abstract
Improving the catalytic activity and durability of platinum-based alloy catalysts remains a formidable challenge in the context of renewable energy electrolysis applications. Herein, a facile and rapid photochemical deposition strategy for the synthesis of gold single atoms (Au SAs) anchored on N-doped carbon is presented. These Au SAs serve as a charge redistribution support for Pt-Ni alloy nanoparticles (PtNiNPs/AuSA-NDC), creating an extended electron-donating interface with Pt-Ni alloy sites. Consequently, the PtNiNPs/AuSA-NDC hybrid catalyst manifests exceptional catalytic performance and durability in both the oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) under acidic conditions. Specifically, in ORR, it exhibits a half-wave potential (0.92 V vs RHE), with a mass activity 20.4 times superior to Pt/C at 0.9 V. In HER, PtNiNPs/AuSA-NDC demonstrates a notably reduced overpotential of 19.1 mV vs RHE at 10 mA cm-2 and a mass activity 38 times higher than Pt/C (at 0.25 mV). Furthermore, this hybrid catalyst displays outstanding durability, with only an 8.0 mV decay observed for ORR and a 6.9 mV decay for HER after 10 000 cycles. Theoretical calculations provide insight into the mechanism, demonstrating that isolated Au sites effectively modulate the electronic structure of Pt-Ni alloy sites, facilitating intermediate adsorption and enhancing reaction kinetics.
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Affiliation(s)
- Thanh Duc Le
- Division of Advanced Materials Engineering, Research Center for Advanced Materials Development, Jeonbuk National University, Jeonju, 54896, South Korea
| | - Dong-Seog Kim
- Division of Advanced Materials Engineering, Research Center for Advanced Materials Development, Jeonbuk National University, Jeonju, 54896, South Korea
| | - Tuong Van Tran
- Division of Advanced Materials Engineering, Research Center for Advanced Materials Development, Jeonbuk National University, Jeonju, 54896, South Korea
| | - Bharagav Urupalli
- Division of Advanced Materials Engineering, Research Center for Advanced Materials Development, Jeonbuk National University, Jeonju, 54896, South Korea
| | - Gi-Seung Shin
- Division of Advanced Materials Engineering, Research Center for Advanced Materials Development, Jeonbuk National University, Jeonju, 54896, South Korea
| | - Geun-Jae Oh
- Division of Advanced Materials Engineering, Research Center for Advanced Materials Development, Jeonbuk National University, Jeonju, 54896, South Korea
| | - Yeon-Tae Yu
- Division of Advanced Materials Engineering, Research Center for Advanced Materials Development, Jeonbuk National University, Jeonju, 54896, South Korea
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3
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Wang Z, Wu J, Liu L, Wu W, Wang Y, Huang H, Deng F, Liu X. Platinum Cluster Decoration on Hollow Carbon Spheres for High-Efficiency Hydrogen Evolution Reaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:15031-15037. [PMID: 38988010 DOI: 10.1021/acs.langmuir.4c01354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
Currently, platinum (Pt)/carbon support composite materials have tremendous application prospects in the hydrogen evolution reaction (HER). However, one of the primary challenges for boosting their performance is designing a substrate with the desired microstructure. Herein, the intact hollow carbon spheres (HCSs) were prepared via template method. Based on the morphology variation of the as-prepared HCSs-x, we conjectured that the polydopamine (PDA) core was generated first and then slowly grew into a complete overburden (SiO2@PDA). Afterward, Pt atomic clusters were anchored on the outer shells of HCSs-4 to construct composite electrocatalysts (Pty/HCSs-4) by a chemical reduction method. Due to the low charge-transfer resistance, the HCSs have a large electrochemical surface area and provide a continuous electron transport pathway, boosting the atom utilization efficiency during hydrogen production and release. The synthesized Pt2.5/HCSs-4 electrocatalysts exhibit excellent HER activity in acidic media, which can be ascribed to the compositional modulation and delicate structural design. Specifically, when the overpotential is 10 A g-1, the overpotential can achieve 92 mV. This work opens a new route to fabricate Pt-based electrocatalysts and brings a new understanding of the formation mechanism of HCSs.
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Affiliation(s)
- Zhijun Wang
- College of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P.R. China
| | - Jingjing Wu
- College of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P.R. China
| | - Limin Liu
- College of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P.R. China
| | - Wenchi Wu
- College of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P.R. China
| | - Yinfeng Wang
- College of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P.R. China
| | - Haigen Huang
- College of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P.R. China
| | - Fei Deng
- College of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, P.R. China
| | - Xuexia Liu
- School of Forensic Medicine, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
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4
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Park EJ, Jannasch P, Miyatake K, Bae C, Noonan K, Fujimoto C, Holdcroft S, Varcoe JR, Henkensmeier D, Guiver MD, Kim YS. Aryl ether-free polymer electrolytes for electrochemical and energy devices. Chem Soc Rev 2024; 53:5704-5780. [PMID: 38666439 DOI: 10.1039/d3cs00186e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Anion exchange polymers (AEPs) play a crucial role in green hydrogen production through anion exchange membrane water electrolysis. The chemical stability of AEPs is paramount for stable system operation in electrolysers and other electrochemical devices. Given the instability of aryl ether-containing AEPs under high pH conditions, recent research has focused on quaternized aryl ether-free variants. The primary goal of this review is to provide a greater depth of knowledge on the synthesis of aryl ether-free AEPs targeted for electrochemical devices. Synthetic pathways that yield polyaromatic AEPs include acid-catalysed polyhydroxyalkylation, metal-promoted coupling reactions, ionene synthesis via nucleophilic substitution, alkylation of polybenzimidazole, and Diels-Alder polymerization. Polyolefinic AEPs are prepared through addition polymerization, ring-opening metathesis, radiation grafting reactions, and anionic polymerization. Discussions cover structure-property-performance relationships of AEPs in fuel cells, redox flow batteries, and water and CO2 electrolysers, along with the current status of scale-up synthesis and commercialization.
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Affiliation(s)
- Eun Joo Park
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
| | | | - Kenji Miyatake
- University of Yamanashi, Kofu 400-8510, Japan
- Waseda University, Tokyo 169-8555, Japan
| | - Chulsung Bae
- Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Kevin Noonan
- Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Cy Fujimoto
- Sandia National Laboratories, Albuquerque, NM 87123, USA
| | | | | | - Dirk Henkensmeier
- Korea Institute of Science and Technology (KIST), Seoul 02792, South Korea
- KIST School, University of Science and Technology (UST), Seoul 02792, South Korea
- KU-KIST School, Korea University, Seoul 02841, South Korea
| | - Michael D Guiver
- State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China.
| | - Yu Seung Kim
- Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
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Yu X, Li Y, Pei C, Lu Y, Kim JK, Park HS, Pang H. Interfacial Design of Ti 3C 2T x MXene/Graphene Heterostructures Boosted Ru Nanoclusters with High Activity Toward Hydrogen Evolution Reaction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2310013. [PMID: 38552154 PMCID: PMC11165527 DOI: 10.1002/advs.202310013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/05/2024] [Indexed: 06/12/2024]
Abstract
The development of a cost-competitive and efficient electrocatalyst is both attractive and challenging for hydrogen production by hydrogen evolution reaction (HER). Herein, a facile glycol reduction method to construct Ru nanoclusters coupled with hierarchical exfoliated-MXene/reduced graphene oxide architectures (Ru-E-MXene/rGA) is reported. The hierarchical structure, formed by the self-assembly of graphene oxides, can effectively prohibit the self-stacking of MXene nanosheets. Meanwhile, the formation of the MXene/rGA interface can strongly trap the Ru3+ ions, resulting in the uniform distribution of Ru nanoclusters within Ru-E-MXene/rGA. The boosted catalytic activity and underlying catalytic mechanism during the HER process are proved by density functional theory. Ru-E-MXene/rGA exhibits overpotentials of 42 and 62 mV at 10 mA cm-2 in alkaline and acidic electrolytes, respectively. The small Tafel slope and charge transfer resistance (Rct) values elucidate its fast dynamic behavior. The cyclic voltammetry (CV) curves and chronoamperometry test confirm the high stability of Ru-E-MXene/rGA. These results demonstrate that coupling Ru nanoclusters with the MXene/rGA heterostructure represents an efficient strategy for constructing MXene-based catalysts with enhanced HER activity.
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Affiliation(s)
- Xu Yu
- School of Chemistry and Chemical EngineeringYangzhou UniversityYangzhou225002P. R. China
| | - Yong Li
- School of Chemistry and Chemical EngineeringYangzhou UniversityYangzhou225002P. R. China
| | - Chengang Pei
- Department of Chemical EngineeringCollege of EngineeringSungkyunkwan University2066, Seobu‐ro, Jangan‐guSuwon‐siGyeonggi‐do16419Republic of Korea
| | - Yanhui Lu
- School of Chemistry and Chemical EngineeringYangzhou UniversityYangzhou225002P. R. China
| | - Jung Kyu Kim
- Department of Chemical EngineeringCollege of EngineeringSungkyunkwan University2066, Seobu‐ro, Jangan‐guSuwon‐siGyeonggi‐do16419Republic of Korea
| | - Ho Seok Park
- Department of Chemical EngineeringCollege of EngineeringSungkyunkwan University2066, Seobu‐ro, Jangan‐guSuwon‐siGyeonggi‐do16419Republic of Korea
| | - Huan Pang
- School of Chemistry and Chemical EngineeringYangzhou UniversityYangzhou225002P. R. China
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6
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Wang S, Li S, Yu Y, Zhang T, Qu J, Sun Q. Cobalt Phosphide-Supported Single-Atom Pt Catalysts for Efficient and Stable Hydrogen Generation from Ammonia Borane Hydrolysis. SMALL METHODS 2024:e2400376. [PMID: 38801007 DOI: 10.1002/smtd.202400376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/05/2024] [Indexed: 05/29/2024]
Abstract
Ammonia borane (AB) has emerged as a promising chemical hydrogen storage material. The development of efficient, stable, and cost-effective catalysts for AB hydrolysis is the key to achieving hydrogen energy economy. Here, cobalt phosphide (CoP) is used to anchor single-atom Pt species, acting as robust catalysts for hydrogen generation from AB hydrolysis. Thanks to the high Pt utilization and the synergy between CoP and Pt species, the optimized Pt/CoP-100 catalyst exhibits an unprecedented hydrogen generation rate, giving a record turnover frequency (TOF) value of 39911mo l H 2 mo l Pt - 1 mi n - 1 ${\mathrm{mo}}{{{\mathrm{l}}}_{{{{\mathrm{H}}}_{\mathrm{2}}}}}{\mathrm{\ mo}}{{{\mathrm{l}}}_{{\mathrm{Pt}}}}^{{\mathrm{ - 1}}}{\mathrm{\ mi}}{{{\mathrm{n}}}^{{\mathrm{ - 1}}}}$ and turnover number of 2926829mo l H 2 mo l Pt - 1 ${\mathrm{mo}}{{{\mathrm{l}}}_{{{{\mathrm{H}}}_{\mathrm{2}}}}}{\mathrm{\ mo}}{{{\mathrm{l}}}_{{\mathrm{Pt}}}}^{{\mathrm{ - 1}}}$ at room temperature. These metrics surpass those of all existing state-of-the-art supported metal catalysts by an order of magnitude. Density functional theory calculations reveal that the integration of single-atom Pt onto the CoP substrate significantly enhances adsorption and dissociation processes for both water and AB molecules, thereby facilitating hydrogen production from AB hydrolysis. Interestingly, the TOF value is further elevated to 54878mo l H 2 mo l Pt - 1 mi n - 1 ${\mathrm{mo}}{{{\mathrm{l}}}_{{{{\mathrm{H}}}_{\mathrm{2}}}}}{\mathrm{\ mo}}{{{\mathrm{l}}}_{{\mathrm{Pt}}}}^{{\mathrm{ - 1}}}{\mathrm{\ mi}}{{{\mathrm{n}}}^{{\mathrm{ - 1}}}}$ under UV-vis light irradiation, which can be attributed to the efficient separation and mobility of photogenerated carriers at the Pt-CoP interface. The findings underscore the effectiveness of CoP as a support for single-atom metals in hydrogen production, offering insights for designing high-performance catalysts for chemical hydrogen storage.
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Affiliation(s)
- Shiqi Wang
- Innovation Center for Chemical Sciences, College of Chemistry, Chemical Engineering and Materials Science, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, P. R. China
| | - Songqi Li
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Yicheng Yu
- Innovation Center for Chemical Sciences, College of Chemistry, Chemical Engineering and Materials Science, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, P. R. China
| | - Tianjun Zhang
- State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Hebei University, Baoding, 071002, P. R. China
| | - Jiafu Qu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Qiming Sun
- Innovation Center for Chemical Sciences, College of Chemistry, Chemical Engineering and Materials Science, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, P. R. China
- Shanghai Key Laboratory of High-resolution Electron Microscopy, ShanghaiTech University, Shanghai, 201210, P. R. China
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Wang X, Li D, Dai J, Xue Q, Yang C, Xia L, Qi X, Bao B, Yang S, Xu Y, Yuan C, Luo W, Cabot A, Dai L. Blocking Metal Nanocluster Growth through Ligand Coordination and Subsequent Polymerization: The Case of Ruthenium Nanoclusters as Robust Hydrogen Evolution Electrocatalysts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309176. [PMID: 38150625 DOI: 10.1002/smll.202309176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/03/2023] [Indexed: 12/29/2023]
Abstract
Metal nanoclusters providing maximized atomic surface exposure offer outstanding hydrogen evolution activities but their stability is compromised as they are prone to grow and agglomerate. Herein, a possibility of blocking metal ion diffusion at the core of cluster growth and aggregation to produce highly active Ru nanoclusters supported on an N, S co-doped carbon matrix (Ru/NSC) is demonstrated. To stabilize the nanocluster dispersion, Ru species are initially coordinated through multiple Ru─N bonds with N-rich 4'-(4-aminophenyl)-2,2:6',2''-terpyridine (TPY-NH2) ligands that are subsequently polymerized using a Schiff base. After the pyrolysis of the hybrid composite, highly dispersed ultrafine Ru nanoclusters with an average size of 1.55 nm are obtained. The optimized Ru/NSC displays minimal overpotentials and high turnover frequencies, as well as robust durability both in alkaline and acidic electrolytes. Besides, outstanding mass activities of 3.85 A mg-1 Ru at 50 mV, i.e., 16 fold higher than 20 wt.% Pt/C are reached. Density functional theory calculations rationalize the outstanding performance by revealing that the low d-band center of Ru/NSC allows the desorption of *H intermediates, thereby enhancing the alkaline HER activity. Overall, this work provides a feasible approach to engineering cost-effective and robust electrocatalysts based on carbon-supported transition metal nanoclusters for future energy technologies.
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Affiliation(s)
- Xiaohong Wang
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, 361005, China
| | - DongXu Li
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, 361005, China
| | - Juguo Dai
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, 361005, China
- Catalonia Institute for Energy Research (IREC), Sant Adrià de Besòs, Barcelona, Catalonia, 08930, Spain
| | - Qian Xue
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Chunying Yang
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, 361005, China
| | - Long Xia
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, 361005, China
| | - Xueqiang Qi
- Catalonia Institute for Energy Research (IREC), Sant Adrià de Besòs, Barcelona, Catalonia, 08930, Spain
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Bingtao Bao
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, 361005, China
| | - Siyu Yang
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, 361005, China
| | - Yiting Xu
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, 361005, China
| | - Conghui Yuan
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, 361005, China
| | - Weiang Luo
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, 361005, China
| | - Andreu Cabot
- Catalonia Institute for Energy Research (IREC), Sant Adrià de Besòs, Barcelona, Catalonia, 08930, Spain
- ICREA, Pg. Lluis Companys 23, Barcelona, Catalonia, 08010, Spain
| | - Lizong Dai
- College of Materials, Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, 361005, China
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Jin J, Wang X, Hu Y, Zhang Z, Liu H, Yin J, Xi P. Precisely Control Relationship between Sulfur Vacancy and H Absorption for Boosting Hydrogen Evolution Reaction. NANO-MICRO LETTERS 2024; 16:63. [PMID: 38168843 PMCID: PMC10761665 DOI: 10.1007/s40820-023-01291-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 11/21/2023] [Indexed: 01/05/2024]
Abstract
Effective and robust catalyst is the core of water splitting to produce hydrogen. Here, we report an anionic etching method to tailor the sulfur vacancy (VS) of NiS2 to further enhance the electrocatalytic performance for hydrogen evolution reaction (HER). With the VS concentration change from 2.4% to 8.5%, the H* adsorption strength on S sites changed and NiS2-VS 5.9% shows the most optimized H* adsorption for HER with an ultralow onset potential (68 mV) and has long-term stability for 100 h in 1 M KOH media. In situ attenuated-total-reflection Fourier transform infrared spectroscopy (ATR-FTIRS) measurements are usually used to monitor the adsorption of intermediates. The S- H* peak of the NiS2-VS 5.9% appears at a very low voltage, which is favorable for the HER in alkaline media. Density functional theory calculations also demonstrate the NiS2-VS 5.9% has the optimal |ΔGH*| of 0.17 eV. This work offers a simple and promising pathway to enhance catalytic activity via precise vacancies strategy.
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Affiliation(s)
- Jing Jin
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Xinyao Wang
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Yang Hu
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Zhuang Zhang
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Hongbo Liu
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Jie Yin
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China.
| | - Pinxian Xi
- College of Chemistry and Chemical Engineering, Frontiers Science Center for Rare Isotopes, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China.
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