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Jagadeeswararao M, Vashishtha P, Hooper TJN, Kanwat A, Lim JWM, Vishwanath SK, Yantara N, Park T, Sum TC, Chung DS, Mhaisalkar SG, Mathews N. One-Pot Synthesis and Structural Evolution of Colloidal Cesium Lead Halide-Lead Sulfide Heterostructure Nanocrystals for Optoelectronic Applications. J Phys Chem Lett 2021; 12:9569-9578. [PMID: 34581578 DOI: 10.1021/acs.jpclett.1c02915] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Heterostructures, combining perovskite nanocrystals (PNC) and chalcogenide quantum dots, could pave a path to optoelectronic device applications by enabling absorption in the near-infrared region, tailorable electronic properties, and stable crystal structures. Ideally, the heterostructure host material requires a similar lattice constant as the guest which is also constrained by the synthesis protocol and materials selectivity. Herein, we present an efficient one-pot hot-injection method to synthesize colloidal all-inorganic cesium lead halide-lead sulfide (CsPbX3 (X = Cl, Br, I)-PbS) heterostructure nanocrystals (HNCs) via the epitaxial growth of the perovskite onto the presynthesized PbS nanocrystals (NCs). Optical and structural characterization evidenced the formation of heterostructures. The embedding of PbS NCs into CsPbX3 perovskite allows the tuning of the absorption and emission from 400 to 1100 nm by tuning the size and composition of perovskite HNCs. The CsPbI3-PbS HNCs show enhanced stability in ambient conditions. The stability, tunable optical properties, and variable band alignments accessible in this system would have implications in the design of novel optoelectronic applications such as light-emitting diodes, photodetectors, photocatalysis, and photovoltaics.
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Affiliation(s)
- Metikoti Jagadeeswararao
- Energy Research Institute @ NTU (ERIAN), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37363, Republic of Korea
| | - Parth Vashishtha
- School of Materials Science and Engineering, Nanyang Technological University (NTU), 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Thomas J N Hooper
- Center of High Field NMR Spectroscopy and Imaging, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Anil Kanwat
- Energy Research Institute @ NTU (ERIAN), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore
| | - Jia Wei Melvin Lim
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
- Energy Research Institute @NTU (ERI@N), Interdisciplinary Graduate Programme, Nanyang Technological University, Singapore 637371, Singapore
| | - Sujaya Kumar Vishwanath
- School of Materials Science and Engineering, Nanyang Technological University (NTU), 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Natalia Yantara
- Energy Research Institute @ NTU (ERIAN), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore
| | - Taewook Park
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37363, Republic of Korea
| | - Tze Chien Sum
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Dae Sung Chung
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37363, Republic of Korea
| | - Subodh G Mhaisalkar
- Energy Research Institute @ NTU (ERIAN), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore
| | - Nripan Mathews
- Energy Research Institute @ NTU (ERIAN), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore
- School of Materials Science and Engineering, Nanyang Technological University (NTU), 50 Nanyang Avenue, Singapore 639798, Singapore
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2
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Hooper TJN, Fang Y, Brown AAM, Pu SH, White TJ. Structure and surface properties of size-tuneable CsPbBr 3 nanocrystals. NANOSCALE 2021; 13:15770-15780. [PMID: 34528047 DOI: 10.1039/d1nr04602k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This investigation has characterised the structure and surface chemistry of CsPbBr3 nanocrystals with controlled diameters between 6.4 to 12.8 nm. The nanocrystals were investigated via a thorough 133Cs solid state NMR and nuclear relaxation study, identifying and mapping radially-increasing nanoscale disorder. This work has formalised 133Cs NMR as a highly sensitive probe of nanocrystal size, which can conveniently analyse nanocrystals in solid forms, as they would be utilised in optoelectronic devices. A combined multinuclear solid state NMR and XPS approach, including 133Cs-1H heteronuclear correlation 2D (HETCOR) NMR, was utilised to study the nanocrystal surface and ligands, demonstrating that the surface is Cs-Br rich with vacancies passivated by didodecyldimethylammonium bromide (DDAB) ligands. Furthermore, it is shown that a negligible amount of phosphonate ligands remain on the powder nanocrystal surface, despite the key role of octylphosphonic acid (OPA) in controlling the colloidal nanocrystal growth. The CsPbBr3 NCs were shown to be structurally stable under ambient conditions for up to 6 months, albeit with some particle agglomeration.
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Affiliation(s)
- Thomas J N Hooper
- Centre of High Field NMR Spectroscopy and Imaging, Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Republic of Singapore.
| | - Yanan Fang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Republic of Singapore.
| | - Alasdair A M Brown
- Faculty of Engineering and Physical Sciences, University of Southampton, University Road, Southampton, SO171BJ, UK
- University of Southampton Malaysia, Iskandar Puteri, 79200, Johor, Malaysia
- Energy Research Institute at NTU (ERI@N), Research Techno Plaza, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Republic of Singapore
| | - Suan Hui Pu
- Faculty of Engineering and Physical Sciences, University of Southampton, University Road, Southampton, SO171BJ, UK
- University of Southampton Malaysia, Iskandar Puteri, 79200, Johor, Malaysia
| | - Tim J White
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Republic of Singapore.
- Energy Research Institute at NTU (ERI@N), Research Techno Plaza, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Republic of Singapore
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3
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Smith ME. Recent progress in solid-state nuclear magnetic resonance of half-integer spin low-γ quadrupolar nuclei applied to inorganic materials. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2021; 59:864-907. [PMID: 33207003 DOI: 10.1002/mrc.5116] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/12/2020] [Accepted: 11/13/2020] [Indexed: 06/11/2023]
Abstract
An overview is presented of recent progress in the solid-state nuclear magnetic resonance (NMR) observation of low-γ nuclei, with a focus on applications to inorganic materials. The technological and methodological advances in the last 20 years, which have underpinned the increased accessibility of low-γ nuclei for study by solid-state NMR techniques, are summarised, including improvements in hardware, pulse sequences and associated computational methods (e.g., first principles calculations and spectral simulation). Some of the key initial observations from inorganic materials of these nuclei are highlighted along with some recent (most within the last 10 years) illustrations of their application to such materials. A summary of other recent reviews of the study of low-γ nuclei by solid-state NMR is provided so that a comprehensive understanding of what has been achieved to date is available.
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Affiliation(s)
- Mark E Smith
- Vice-Chancellor and President's Office and Department of Chemistry, University of Southampton, Southampton, UK
- Department of Chemistry, Lancaster University, Bailrigg, Lancaster, UK
- Department of Physics, University of Warwick, Coventry, UK
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Macaskie LE, Collins J, Mikheenko IP, Gomez-Bolivar J, Merroun ML, Bennett JA. Enhanced hydrogenation catalyst synthesized by Desulfovibrio desulfuricans exposed to a radio frequency magnetic field. Microb Biotechnol 2021; 14:2041-2058. [PMID: 34216193 PMCID: PMC8449679 DOI: 10.1111/1751-7915.13878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 06/13/2021] [Indexed: 11/27/2022] Open
Abstract
Desulfovibrio desulfuricans reduces Pd(II) to Pd(0)‐nanoparticles (Pd‐NPs) which are catalytically active in 2‐pentyne hydrogenation. To make Pd‐NPs, resting cells are challenged with Pd(II) ions (uptake), followed by addition of electron donor to promote bioreduction of cell‐bound Pd(II) to Pd(0) (bio‐Pd). Application of radiofrequency (RF) radiation to prepared 5 wt% bio‐Pd catalyst (60 W power, 60 min) increased the hydrogenation rate by 70% with no adverse impact on selectivity to cis‐2‐pentene. Such treatment of a 5 wt% Pd/carbon commercial catalyst did not affect the conversion rate but reduced the selectivity. Lower‐dose RF radiation (2–8 W power, 20 min) was applied to the bacteria at various stages before and during synthesis of the bio‐scaffolded Pd‐NPs. The reaction rate (μ mol 2‐pentyne converted s‐1) was increased by ~threefold by treatment during bacterial catalyst synthesis. Application of RF radiation (2 or 4 W power) to resting cells prior to Pd(II) exposure affected the catalyst made subsequently, increasing the reaction rate by 50% as compared to untreated cells, while nearly doubling selectivity for cis 2‐pentene. The results are discussed with respect to published and related work which shows altered dispersion of the Pd‐NPs made following or during RF exposure.
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Affiliation(s)
- Lynne E Macaskie
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - John Collins
- C-Tech Innovation Ltd. Capenhurst Technology Park, Capenhurst, CH1 6EH, UK
| | - Iryna P Mikheenko
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Jaime Gomez-Bolivar
- Department of Microbiology, Faculty of Sciences, University of Granada, Campus Fuentenueva, Granada, 18071, Spain
| | - Mohamed L Merroun
- Department of Microbiology, Faculty of Sciences, University of Granada, Campus Fuentenueva, Granada, 18071, Spain
| | - James A Bennett
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
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Febriansyah B, Lekina Y, Kaur J, Hooper TJN, Harikesh PC, Salim T, Lim MH, Koh TM, Chakraborty S, Shen ZX, Mathews N, England J. Formation of Corrugated n = 1 2D Tin Iodide Perovskites and Their Use as Lead-Free Solar Absorbers. ACS NANO 2021; 15:6395-6409. [PMID: 33818071 DOI: 10.1021/acsnano.0c08204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Major strides have been made in the development of materials and devices based around low-dimensional hybrid group 14 metal halide perovskites. Thus far, this work has mostly focused on compounds containing highly toxic Pb, with the analogous less toxic Sn materials being comparatively poorly evolved. In response, the study herein aims to (i) provide insight into the impact of templating cations upon the structure of n = 1 2D tin iodide perovskites (where n refers to the number of contiguous two-dimensional (2D) inorganic layers, i.e., not separated by organic cations) and (ii) examine their potential as light absorbers for photovoltaic (PV) cells. It was discovered through systematic tuning of organic dications that imidazolium rings are able to induce the formation of (110)-oriented materials, including examples of "3 × 3" corrugated Sn-I perovskites. This structural outcome is a consequence of a combination of supramolecular interactions of the two endocyclic N atoms of the imidazolium rings with the Sn-I framework, and the comparatively high tendency of Sn2+ ions to stereochemically express their 5s2 lone pairs . More importantly, the resulting materials feature very short separations between their 2D inorganic layers with iodide-iodide (I···I) contacts as small as 4.174 Å, which is among the shortest ever recorded for 2D tin iodide perovskites. These proximate inorganic distances, combined with the polarizable nature of the imidazolium moiety, eases the separation of photogenerated charge within the materials. This is evident from the measurement of excitonic activation energies as low as 83(10) meV for ImEA[SnI4]. When combined with superior light absorption capabilities relative to their lead congeners, this allowed the fabrication of lead-free solar cells with incident photon-to-current and power conversion efficiencies of up to 70% and 2.26%, respectively, which are among the highest values reported for pure n = 1 2D group 14 metal halide perovskites. In fact, these values are superior to the corresponding lead iodide material, which demonstrates that 2D Sn-based materials have significant potential as less toxic alternatives to their Pb counterparts.
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Affiliation(s)
- Benny Febriansyah
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore 637553, Singapore
- Interdiscipinary Graduate School (IGS), 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Yulia Lekina
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Jagjit Kaur
- Materials Theory for Energy Scavenging (MATES) Lab, Discipline of Physics, Indian Institute of Technology Indore, Simrol, Indore 453552, India
| | - Thomas J N Hooper
- Centre of High Field Nuclear Magnetic Resonance (NMR) Spectroscopy and Imaging, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Padinhare Cholakkal Harikesh
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore 637553, Singapore
- Interdiscipinary Graduate School (IGS), 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Teddy Salim
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Ming Hui Lim
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Teck Ming Koh
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore 637553, Singapore
| | - Sudip Chakraborty
- Materials Theory for Energy Scavenging (MATES) Lab, Discipline of Physics, Indian Institute of Technology Indore, Simrol, Indore 453552, India
| | - Ze Xiang Shen
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore 637553, Singapore
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Nripan Mathews
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore 637553, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Jason England
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
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Xie L, Vashishtha P, Koh TM, Harikesh PC, Jamaludin NF, Bruno A, Hooper TJN, Li J, Ng YF, Mhaisalkar SG, Mathews N. Realizing Reduced Imperfections via Quantum Dots Interdiffusion in High Efficiency Perovskite Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2003296. [PMID: 32856340 DOI: 10.1002/adma.202003296] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/18/2020] [Indexed: 06/11/2023]
Abstract
Realization of reduced ionic (cationic and anionic) defects at the surface and grain boundaries (GBs) of perovskite films is vital to boost the power conversion efficiency of organic-inorganic halide perovskite (OIHP) solar cells. Although numerous strategies have been developed, effective passivation still remains a great challenge due to the complexity and diversity of these defects. Herein, a solid-state interdiffusion process using multi-cation hybrid halide perovskite quantum dots (QDs) is introduced as a strategy to heal the ionic defects at the surface and GBs. It is found that the solid-state interdiffusion process leads to a reduction in OIHP shallow defects. In addition, Cs+ distribution in QDs greatly influences the effectiveness of ionic defect passivation with significant enhancement to all photovoltaic performance characteristics observed on treating the solar cells with Cs0.05 (MA0.17 FA0.83 )0.95 PbBr3 (abbreviated as QDs-Cs5). This enables power conversion efficiency (PCE) exceeding 21% to be achieved with more than 90% of its initial PCE retained on exposure to continuous illumination of more than 550 h.
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Affiliation(s)
- Lin Xie
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Parth Vashishtha
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore, 637553, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Teck Ming Koh
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Padinhare Cholakkal Harikesh
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Nur Fadilah Jamaludin
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Annalisa Bruno
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Thomas J N Hooper
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore, 637553, Singapore
- NTU Center of High Field NMR Spectroscopy and Imaging, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Jia Li
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Yan Fong Ng
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore, 637553, Singapore
| | - Subodh G Mhaisalkar
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore, 637553, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Nripan Mathews
- Energy Research Institute at Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontier Block Level 5, 50 Nanyang Drive, Singapore, 637553, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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7
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Chen T, Ellis I, Hooper TJN, Liberti E, Ye L, Lo BTW, O'Leary C, Sheader AA, Martinez GT, Jones L, Ho PL, Zhao P, Cookson J, Bishop PT, Chater P, Hanna JV, Nellist P, Tsang SCE. Interstitial Boron Atoms in the Palladium Lattice of an Industrial Type of Nanocatalyst: Properties and Structural Modifications. J Am Chem Soc 2019; 141:19616-19624. [PMID: 31747756 DOI: 10.1021/jacs.9b06120] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
It is well-established that the inclusion of small atomic species such as boron (B) in powder metal catalysts can subtly modify catalytic properties, and the associated changes in the metal lattice imply that the B atoms are located in the interstitial sites. However, there is no compelling evidence for the occurrence of interstitial B atoms, and there is a concomitant lack of detailed structural information describing the nature of this occupancy and its effects on the metal host. In this work, we use an innovative combination of high-resolution 11B magic-angle-spinning (MAS) and 105Pd static solid-state NMR nuclear magnetic resonance (NMR), synchrotron X-ray diffraction (SXRD), in situ X-ray pair distribution function (XPDF), scanning transmission electron microscopy-annular dark field imaging (STEM-ADF), electron ptychography, and electron energy loss spectroscopy (EELS) to investigate the B atom positions, properties, and structural modifications to the palladium lattice of an industrial type interstitial boron doped palladium nanoparticle catalyst system (Pd-intB/C NPs). In this study, we report that upon B incorporation into the Pd lattice, the overall face centered cubic (FCC) lattice is maintained; however, short-range disorder is introduced. The 105Pd static solid-state NMR illustrates how different types (and levels) of structural strain and disorder are introduced in the nanoparticle history. These structural distortions can lead to the appearance of small amounts of local hexagonal close packed (HCP) structured material in localized regions. The short-range lattice tailoring of the Pd framework to accommodate interstitial B dopants in the octahedral sites of the distorted FCC structure can be imaged by electron ptychography. This study describes new toolsets that enable the characterization of industrial metal nanocatalysts across length scales from macro- to microanalysis, which gives important guidance to the structure-activity relationship of the system.
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Affiliation(s)
- Tianyi Chen
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom.,Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Ieuan Ellis
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom.,Johnson Matthey , Blount's Court, Sonning Common , Reading RG4 9NH , United Kingdom
| | - Thomas J N Hooper
- Department of Physics , University of Warwick , Coventry CV4 7AL , United Kingdom
| | - Emanuela Liberti
- Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Lin Ye
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom
| | - Benedict T W Lo
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom
| | - Colum O'Leary
- Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Alexandra A Sheader
- Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Gerardo T Martinez
- Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Lewys Jones
- Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Ping-Luen Ho
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom.,Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Pu Zhao
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom
| | - James Cookson
- Johnson Matthey , Blount's Court, Sonning Common , Reading RG4 9NH , United Kingdom
| | - Peter T Bishop
- Johnson Matthey , Blount's Court, Sonning Common , Reading RG4 9NH , United Kingdom
| | - Philip Chater
- Diamond Light Source Ltd. , Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE , United Kingdom
| | - John V Hanna
- Department of Physics , University of Warwick , Coventry CV4 7AL , United Kingdom
| | - Peter Nellist
- Department of Materials , University of Oxford , Oxford OX1 3PH , United Kingdom
| | - Shik Chi Edman Tsang
- Wolfson Catalysis Center, Department of Chemistry , University of Oxford , Oxford OX1 3QR , United Kingdom
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8
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Chmelka BF. Materializing opportunities for NMR of solids. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2019; 306:91-97. [PMID: 31377152 DOI: 10.1016/j.jmr.2019.07.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/20/2019] [Accepted: 07/20/2019] [Indexed: 05/04/2023]
Abstract
Advancements in sensitivity and resolution of NMR of solids are opening a bonanza of fundamental and technological opportunities in materials science. Many of these are at the boundaries of related disciplines that provide creative inputs to motivate the development of new methodologies and possibilities for new applications. As Boltzmann limitations are surmounted by dynamic-nuclear-polarization- and laser-enhanced hyperpolarization techniques, the correlative benefits of multidimensional NMR are becoming more and more impactful. Nevertheless, there are limits, and the atomic-level information provided by solid-state NMR will be most useful in combination with state-of-the-art diffraction, microscopy, computational, and materials synthesis methods. Collectively these can be expected to lead to design criteria that will promote discovery of new materials, lead to novel or improved material properties, catalyze new applications, and motivate further methodological advancements.
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Affiliation(s)
- Bradley F Chmelka
- Department of Chemical Engineering, University of California, Santa Barbara, CA 93106, USA.
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