Complex Materials with Stochastic Structural Patterns: Spiky Colloids with Enhanced Charge Storage Capacity
Abstract Self‐assembled materials with complex nanoscale and mesoscale architecture attract considerable attention in energy and sustainability technologies. Their high performance can be attributed to high surface area, quantum effects, and hierarchical organization. Delineation of these contributi...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202305085 |
| _version_ | 1797262317838139392 |
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| author | Yuan Cao Bingcheng Luo Atif Javaid Hong Ju Jung Tao Ma Chung‐Man Lim Ahmet Emre Xiaohui Wang Nicholas A. Kotov |
| author_facet | Yuan Cao Bingcheng Luo Atif Javaid Hong Ju Jung Tao Ma Chung‐Man Lim Ahmet Emre Xiaohui Wang Nicholas A. Kotov |
| author_sort | Yuan Cao |
| collection | DOAJ |
| description | Abstract Self‐assembled materials with complex nanoscale and mesoscale architecture attract considerable attention in energy and sustainability technologies. Their high performance can be attributed to high surface area, quantum effects, and hierarchical organization. Delineation of these contributions is, however, difficult because complex materials display stochastic structural patterns combining both order and disorder, which is difficult to be consistently reproduced yet being important for materials' functionality. Their compositional variability make systematic studies even harder. Here, a model system of FeSe2 “hedgehog” particles (HPs) was selected to gain insight into the mechanisms of charge storage n complex nanostructured materials common for batteries and supercapacitors. Specifically, HPs represent self‐assembled biomimetic nanomaterials with a medium level of complexity; they display an organizational pattern of spiky colloids with considerable disorder yet non‐random; this patternt is consistently reproduced from particle to particle. . It was found that HPs can accommodate ≈70× greater charge density than spheroidal nano‐ and microparticles. Besides expanded surface area, the enhanced charge storage capacity was enabled by improved hole transport and reversible atomic conformations of FeSe2 layers in the blade‐like spikes associated with the rotatory motion of the Se atoms around Fe center. The dispersibility of HPs also enables their easy integration into energy storage devices. HPs quadruple stored electrochemical energy and double the storage modulus of structural supercapacitors. |
| first_indexed | 2024-03-08T11:21:32Z |
| format | Article |
| id | doaj.art-8439edfe88ba4e74a7b4b38cb30d0ec4 |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-04-24T23:55:12Z |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-8439edfe88ba4e74a7b4b38cb30d0ec42024-03-14T14:01:03ZengWileyAdvanced Science2198-38442024-01-01114n/an/a10.1002/advs.202305085Complex Materials with Stochastic Structural Patterns: Spiky Colloids with Enhanced Charge Storage CapacityYuan Cao0Bingcheng Luo1Atif Javaid2Hong Ju Jung3Tao Ma4Chung‐Man Lim5Ahmet Emre6Xiaohui Wang7Nicholas A. Kotov8Department of Chemical Engineering University of Michigan Ann Arbor MI 48109 USACollege of Science China Agriculture University Beijing 100083 ChinaDepartment of Chemical Engineering University of Michigan Ann Arbor MI 48109 USADepartment of Chemical Engineering University of Michigan Ann Arbor MI 48109 USADepartment of Materials Science and Engineering University of Michigan Ann Arbor MI 48109 USABiointerface Institute University of Michigan Ann Arbor MI 48109 USADepartment of Chemical Engineering University of Michigan Ann Arbor MI 48109 USASchool of Materials Science and Engineering Tsinghua University Beijing 100084 ChinaDepartment of Chemical Engineering University of Michigan Ann Arbor MI 48109 USAAbstract Self‐assembled materials with complex nanoscale and mesoscale architecture attract considerable attention in energy and sustainability technologies. Their high performance can be attributed to high surface area, quantum effects, and hierarchical organization. Delineation of these contributions is, however, difficult because complex materials display stochastic structural patterns combining both order and disorder, which is difficult to be consistently reproduced yet being important for materials' functionality. Their compositional variability make systematic studies even harder. Here, a model system of FeSe2 “hedgehog” particles (HPs) was selected to gain insight into the mechanisms of charge storage n complex nanostructured materials common for batteries and supercapacitors. Specifically, HPs represent self‐assembled biomimetic nanomaterials with a medium level of complexity; they display an organizational pattern of spiky colloids with considerable disorder yet non‐random; this patternt is consistently reproduced from particle to particle. . It was found that HPs can accommodate ≈70× greater charge density than spheroidal nano‐ and microparticles. Besides expanded surface area, the enhanced charge storage capacity was enabled by improved hole transport and reversible atomic conformations of FeSe2 layers in the blade‐like spikes associated with the rotatory motion of the Se atoms around Fe center. The dispersibility of HPs also enables their easy integration into energy storage devices. HPs quadruple stored electrochemical energy and double the storage modulus of structural supercapacitors.https://doi.org/10.1002/advs.202305085Complex particlesbiomimetic nanostructuresmetamaterialsStructural supercapacitorsTopological reconfiguration |
| spellingShingle | Yuan Cao Bingcheng Luo Atif Javaid Hong Ju Jung Tao Ma Chung‐Man Lim Ahmet Emre Xiaohui Wang Nicholas A. Kotov Complex Materials with Stochastic Structural Patterns: Spiky Colloids with Enhanced Charge Storage Capacity Advanced Science Complex particles biomimetic nanostructures metamaterials Structural supercapacitors Topological reconfiguration |
| title | Complex Materials with Stochastic Structural Patterns: Spiky Colloids with Enhanced Charge Storage Capacity |
| title_full | Complex Materials with Stochastic Structural Patterns: Spiky Colloids with Enhanced Charge Storage Capacity |
| title_fullStr | Complex Materials with Stochastic Structural Patterns: Spiky Colloids with Enhanced Charge Storage Capacity |
| title_full_unstemmed | Complex Materials with Stochastic Structural Patterns: Spiky Colloids with Enhanced Charge Storage Capacity |
| title_short | Complex Materials with Stochastic Structural Patterns: Spiky Colloids with Enhanced Charge Storage Capacity |
| title_sort | complex materials with stochastic structural patterns spiky colloids with enhanced charge storage capacity |
| topic | Complex particles biomimetic nanostructures metamaterials Structural supercapacitors Topological reconfiguration |
| url | https://doi.org/10.1002/advs.202305085 |
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