• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

通过原位和操作XAFS探测微波辐照下负载型铂纳米颗粒的温度

Probing the temperature of supported platinum nanoparticles under microwave irradiation by in situ and operando XAFS.

作者信息

Ano Taishi, Tsubaki Shuntaro, Liu Anyue, Matsuhisa Masayuki, Fujii Satoshi, Motokura Ken, Chun Wang-Jae, Wada Yuji

机构信息

School of Materials and Chemical Technology, Tokyo Institute of Technology, E4-3, 2-12-1, Ookayama, Meguro, Tokyo, 152-8552, Japan.

PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan.

出版信息

Commun Chem. 2020 Jul 3;3(1):86. doi: 10.1038/s42004-020-0333-y.

DOI:10.1038/s42004-020-0333-y
PMID:36703448
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9814256/
Abstract

Microwave irradiation can cause high local temperatures at supported metal nanoparticles, which can enhance reaction rates. Here we discuss the temperature of platinum nanoparticles on γ-AlO and SiO supports under microwave irradiation using the Debye-Waller factor obtained from in situ extended X-ray absorption fine structure (EXAFS) measurements. Microwave irradiation exhibits considerably smaller Deby-Waller factors than conventional heating, indicating the high local temperature at the nanoparticles. The difference in the average temperatures between the platinum nanoparticles and the bulk under microwaves reaches 26 K and 132 K for Pt/AlO and Pt/SiO, respectively. As a result, Pt/SiO exhibits considerably more reaction acceleration for the catalytic dehydrogenation of 2-propanol under microwave irradiation than Pt/AlO. We also find microwaves enhance the reduction of PtO nanoparticles by using operando X-ray absorption near edge structure (XANES) spectroscopy. The present results indicate that significant local heating of platinum nanoparticles by microwaves is effective for the acceleration of catalytic reactions.

摘要

微波辐射会在负载型金属纳米颗粒处导致局部高温，这能够提高反应速率。在此，我们利用原位扩展X射线吸收精细结构（EXAFS）测量得到的德拜-瓦勒因子，来讨论微波辐射下γ-AlO和SiO负载的铂纳米颗粒的温度。与传统加热相比，微波辐射表现出明显更小的德拜-瓦勒因子，这表明纳米颗粒处存在高温。对于Pt/AlO和Pt/SiO，微波作用下铂纳米颗粒与块状材料之间的平均温度差分别达到26 K和132 K。结果，在微波辐射下，Pt/SiO对2-丙醇催化脱氢反应的加速作用比Pt/AlO显著得多。我们还通过操作X射线吸收近边结构（XANES）光谱发现，微波增强了PtO纳米颗粒的还原。目前的结果表明，微波对铂纳米颗粒的显著局部加热对催化反应的加速是有效的。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/de20e0bb63c5/42004_2020_333_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/c2ee5840c07f/42004_2020_333_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/3bf6053c4055/42004_2020_333_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/1012b6d18165/42004_2020_333_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/246ee7ccd2e6/42004_2020_333_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/14679a2b420d/42004_2020_333_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/52798f815d3b/42004_2020_333_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/43d9779eb32e/42004_2020_333_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/653348d719c9/42004_2020_333_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/de20e0bb63c5/42004_2020_333_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/c2ee5840c07f/42004_2020_333_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/3bf6053c4055/42004_2020_333_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/1012b6d18165/42004_2020_333_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/246ee7ccd2e6/42004_2020_333_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/14679a2b420d/42004_2020_333_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/52798f815d3b/42004_2020_333_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/43d9779eb32e/42004_2020_333_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/653348d719c9/42004_2020_333_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c78/9814256/de20e0bb63c5/42004_2020_333_Fig9_HTML.jpg

相似文献

1
Probing the temperature of supported platinum nanoparticles under microwave irradiation by in situ and operando XAFS.通过原位和操作XAFS探测微波辐照下负载型铂纳米颗粒的温度
Commun Chem. 2020 Jul 3;3(1):86. doi: 10.1038/s42004-020-0333-y.
2
In situ, operando studies on the size and structure of supported Pt catalysts under supercritical conditions by simultaneous synchrotron-based X-ray techniques.利用同步辐射X射线技术在超临界条件下对负载型铂催化剂的尺寸和结构进行原位、实时研究。
Phys Chem Chem Phys. 2019 Jun 5;21(22):11740-11747. doi: 10.1039/c9cp00347a.
3
The duality of UiO-67-Pt MOFs: connecting treatment conditions and encapsulated Pt species by operando XAS.UiO-67-Pt金属有机框架材料的二元性：通过原位X射线吸收光谱连接治疗条件与封装的铂物种
Phys Chem Chem Phys. 2017 Oct 18;19(40):27489-27507. doi: 10.1039/c7cp05185a.
4
Probing the formation mechanism and chemical states of carbon-supported Pt-Ru nanoparticles by in situ X-ray absorption spectroscopy.通过原位X射线吸收光谱法探究碳载Pt-Ru纳米颗粒的形成机制和化学状态。
J Phys Chem B. 2006 Apr 6;110(13):6475-82. doi: 10.1021/jp0563686.
5
Probing the spontaneous reduction mechanism of platinum ions confined in the nanospace by X-ray absorption fine structure spectroscopy.利用X射线吸收精细结构光谱探究纳米空间内铂离子的自发还原机制。
Phys Chem Chem Phys. 2016 Jul 28;18(28):19259-66. doi: 10.1039/c6cp02565j. Epub 2016 Jul 4.
6
In Situ Investigations of Laser-Generated Ligand-Free Platinum Nanoparticles by X-ray Absorption Spectroscopy: How Does the Immediate Environment Influence the Particle Surface?利用 X 射线吸收光谱法对激光生成的无配体铂纳米粒子进行原位研究：瞬态环境如何影响粒子表面？
Langmuir. 2016 Sep 6;32(35):8793-802. doi: 10.1021/acs.langmuir.6b00685. Epub 2016 Aug 24.
7
Effects of adsorbates on supported platinum and iridium clusters: Characterization in reactive atmospheres and during alkene hydrogenation catalysis by X-ray absorption spectroscopy.吸附质对负载型铂和铱簇的影响：通过X射线吸收光谱在反应气氛中以及烯烃加氢催化过程中的表征
J Phys Chem B. 2005 Feb 17;109(6):2338-49. doi: 10.1021/jp048907x.
8
The microwave heating mechanism of N-(4-methoxybenzyliden)-4-butylaniline in liquid crystalline and isotropic phases as determined using in situ microwave irradiation NMR spectroscopy.采用原位微波辐照核磁共振光谱法测定 N-(4-甲氧基亚苄基)-4-丁基苯胺在液晶相和各向同性相中的微波加热机制。
Phys Chem Chem Phys. 2015 Apr 14;17(14):9082-9. doi: 10.1039/c5cp00476d. Epub 2015 Mar 10.
9
Fischer-Tropsch synthesis: study of the promotion of Pt on the reduction property of Co/Al2O3 catalysts by in situ EXAFS of Co K and Pt LIII edges and XPS.费托合成：通过钴K边和铂LIII边的原位扩展X射线吸收精细结构（EXAFS）以及X射线光电子能谱（XPS）研究铂对Co/Al₂O₃催化剂还原性能的促进作用
J Synchrotron Radiat. 2004 Sep 1;11(Pt 5):414-22. doi: 10.1107/S090904950401578X. Epub 2004 Aug 17.
10
The new X-ray absorption fine-structure beamline with sub-second time resolution at the Taiwan Photon Source.台湾光源处具有亚秒级时间分辨率的新型X射线吸收精细结构光束线。
J Synchrotron Radiat. 2021 May 1;28(Pt 3):930-938. doi: 10.1107/S1600577521001740. Epub 2021 Mar 12.

引用本文的文献

1
Plasma-Derived Atomic Hydrogen Enables Eley-Rideal-Type CO Methanation at Low Temperatures.等离子体衍生的原子氢可实现低温下的埃利-里德耳型一氧化碳甲烷化反应。
JACS Au. 2024 Nov 19;5(1):169-177. doi: 10.1021/jacsau.4c00857. eCollection 2025 Jan 27.
2
Surface Speciation in Microwave-Assisted CO Oxidation over Perovskites─The Role of Water and Activation Pretreatment.微波辅助钙钛矿上CO氧化的表面物种形成─水和活化预处理的作用
ACS Appl Mater Interfaces. 2024 Dec 11;16(49):67662-67673. doi: 10.1021/acsami.4c13212. Epub 2024 Nov 26.
3
Rapid start-up of carbon-free H production by ammonia oxidative decomposition over Co/CeZrO with microwave irradiation.

本文引用的文献

1
Escaping undesired gas-phase chemistry: Microwave-driven selectivity enhancement in heterogeneous catalytic reactors.规避不良气相化学反应：微波驱动提高多相催化反应器的选择性
Sci Adv. 2019 Mar 15;5(3):eaau9000. doi: 10.1126/sciadv.aau9000. eCollection 2019 Mar.
2
Enhancement of Fixed-bed Flow Reactions under Microwave Irradiation by Local Heating at the Vicinal Contact Points of Catalyst Particles.通过在催化剂颗粒邻位接触点处进行局部加热来增强微波辐射下的固定床流动反应。
Sci Rep. 2019 Jan 18;9(1):222. doi: 10.1038/s41598-018-35988-y.
3
Probing the surface-localized hyperthermia of gold nanoparticles in a microwave field using polymeric thermometers.
通过微波辐射在Co/CeZrO上进行氨氧化分解实现无碳制氢的快速启动。
iScience. 2024 Jul 3;27(8):110452. doi: 10.1016/j.isci.2024.110452. eCollection 2024 Aug 16.
4
Accelerating Sulfated Polysaccharides Extraction from Fast-Growing Green Seaweed by Frequency-Controlled Microwaves.通过频率控制微波加速从快速生长的绿藻中提取硫酸化多糖
ACS Omega. 2024 Jun 25;9(27):29896-29903. doi: 10.1021/acsomega.4c04080. eCollection 2024 Jul 9.
5
Three-dimensional observations of the electric field distribution of variable frequency microwaves, and scaling-up organic syntheses.可变频率微波电场分布的三维观测及有机合成放大
Commun Chem. 2023 Nov 29;6(1):261. doi: 10.1038/s42004-023-01062-6.
6
Microwave-assisted, performance-advantaged electrification of propane dehydrogenation.微波辅助的丙烷脱氢性能优势电气化
Sci Adv. 2023 Sep 15;9(37):eadi8219. doi: 10.1126/sciadv.adi8219.
7
Direct microwave energy input on a single cation for outstanding selective catalysis.对单个阳离子直接输入微波能量以实现卓越的选择性催化。
Sci Adv. 2023 Aug 18;9(33):eadi1744. doi: 10.1126/sciadv.adi1744.
8
Photothermia at the nanoscale induces ferroptosis via nanoparticle degradation.纳米尺度的光热疗法通过纳米颗粒降解诱导铁死亡。
Nat Commun. 2023 Aug 2;14(1):4637. doi: 10.1038/s41467-023-40258-1.
9
X-Ray Nanothermometry of Nanoparticles in Tumor-Mimicking Tissues under Photothermia.X 射线纳米测温技术在光热治疗肿瘤模拟组织中纳米粒子的应用。
Adv Healthc Mater. 2023 Dec;12(31):e2301863. doi: 10.1002/adhm.202301863. Epub 2023 Aug 10.
10
Decrease in the Crystallite Diameter of Solid Crystalline Magnetite around the Curie Temperature by Microwave Magnetic Fields Irradiation.微波磁场辐照降低居里温度附近固体结晶磁铁矿的微晶直径
Nanomaterials (Basel). 2021 Apr 11;11(4):984. doi: 10.3390/nano11040984.
使用聚合物温度计探测微波场中金纳米颗粒的表面局部热疗。
Chem Sci. 2015 Oct 1;6(10):5662-5669. doi: 10.1039/c5sc01535a. Epub 2015 Jul 10.
4
Complexity and Challenges in Noncontact High Temperature Measurements in Microwave-Assisted Catalytic Reactors.微波辅助催化反应器中非接触式高温测量的复杂性与挑战
Ind Eng Chem Res. 2017 Nov 15;56(45):13379-13391. doi: 10.1021/acs.iecr.7b02091. Epub 2017 Sep 7.
5
Microwaves effectively examine the extent and type of coking over acid zeolite catalysts.微波能有效检测酸性沸石催化剂上结焦的程度和类型。
Nat Commun. 2017 Sep 11;8(1):514. doi: 10.1038/s41467-017-00602-8.
6
Anomalous Structural Disorder in Supported Pt Nanoparticles.负载型铂纳米颗粒中的异常结构紊乱
J Phys Chem Lett. 2017 Jul 20;8(14):3284-3288. doi: 10.1021/acs.jpclett.7b01446. Epub 2017 Jul 6.
7
Rapid Production of High-Purity Hydrogen Fuel through Microwave-Promoted Deep Catalytic Dehydrogenation of Liquid Alkanes with Abundant Metals.通过微波促进富含金属的液体烷烃的深度催化脱氢反应快速生产高纯度氢气燃料。
Angew Chem Int Ed Engl. 2017 Aug 14;56(34):10170-10173. doi: 10.1002/anie.201703489. Epub 2017 May 23.
8
In situ temperature measurements of reaction spaces under microwave irradiation using photoluminescent probes.使用光致发光探针在微波辐射下对反应空间进行原位温度测量。
Phys Chem Chem Phys. 2016 May 11;18(19):13173-9. doi: 10.1039/c6cp02034h.
9
A new type of power energy for accelerating chemical reactions: the nature of a microwave-driving force for accelerating chemical reactions.一种用于加速化学反应的新型动力能源：加速化学反应的微波驱动力的本质。
Sci Rep. 2016 Apr 27;6:25149. doi: 10.1038/srep25149.
10
Quantifying the Nucleation and Growth Kinetics of Microwave Nanochemistry Enabled by in Situ High-Energy X-ray Scattering.原位高能 X 射线散射定量研究微波纳米化学中的成核和生长动力学。
Nano Lett. 2016 Jan 13;16(1):715-20. doi: 10.1021/acs.nanolett.5b04541. Epub 2015 Dec 2.