1
|
Zhou W, Zhou A, Wen B, Liu P, Zhu Z, Finfrock Z, Zhou J. Antimony isotope fractionation during adsorption on aluminum oxides. J Hazard Mater 2022; 429:128317. [PMID: 35086037 DOI: 10.1016/j.jhazmat.2022.128317] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/30/2021] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
The environmental fate of antimony (Sb) is often strongly affected by adsorption, and the Sb isotope fractionation mechanism during adsorption has not been reported. Four batch experiments (kinetic, isothermal, effect of pH, and effect of coexisting anions) were conducted to evaluate the mechanism of Sb(V) adsorption to γ-Al2O3 and the fractionation of Sb isotopes. Extended X-ray absorption fine structure (EXAFS) analyses show Sb(V) adsorption on γ-Al2O3 occurs via outer-sphere surface complexation. The triple-layer model (TLM) effectively predicted the theoretical Sb adsorption amount under different pH conditions. The Sb isotope fractionation in the adsorption process can be divided into an initial kinetic stage (Rayleigh model, αadsorbed-aqueous = 0.99975 ± 0.00003) and subsequent isotopic equilibrium stage due to isotope exchange; however, no significant equilibrium isotope fractionation (Δ123Sbaqueous-adsorbed = ~0 ± 0.08‰) was evident by the end of the experiments. We propose the lack of significant equilibrium isotope fractionation in the effect of pH and isothermal experiments is due to Sb forming an outer-sphere complex on γ-Al2O3. This study reveals Sb equilibrium isotope fractionation does not occur during Sb(V) adsorption onto γ-Al2O3, providing a reference for the future study of Sb isotopes and furthering understanding of the Sb isotope fractionation mechanism.
Collapse
Affiliation(s)
- Weiqing Zhou
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, People's Republic of China; Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, China University of Geosciences, Wuhan 430074, People's Republic of China
| | - Aiguo Zhou
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, People's Republic of China
| | - Bing Wen
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, People's Republic of China
| | - Peng Liu
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, People's Republic of China
| | - Zhenli Zhu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, People's Republic of China
| | - Zou Finfrock
- CLS@APS sector 20, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA; Science Division, Canadian Light Source Inc., 44 Innovation Boulevard, Saskatoon, SK S7N 2V3, Canada
| | - Jianwei Zhou
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, People's Republic of China; Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, China University of Geosciences, Wuhan 430074, People's Republic of China.
| |
Collapse
|
2
|
Cui M, Yang C, Hwang S, Yang M, Overa S, Dong Q, Yao Y, Brozena AH, Cullen DA, Chi M, Blum TF, Morris D, Finfrock Z, Wang X, Zhang P, Goncharov VG, Guo X, Luo J, Mo Y, Jiao F, Hu L. Multi-principal elemental intermetallic nanoparticles synthesized via a disorder-to-order transition. Sci Adv 2022; 8:eabm4322. [PMID: 35089780 PMCID: PMC8797181 DOI: 10.1126/sciadv.abm4322] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 12/07/2021] [Indexed: 05/25/2023]
Abstract
Nanoscale multi-principal element intermetallics (MPEIs) may provide a broad and tunable compositional space of active, high-surface area materials with potential applications such as catalysis and magnetics. However, MPEI nanoparticles are challenging to fabricate because of the tendency of the particles to grow/agglomerate or phase-separated during annealing. Here, we demonstrate a disorder-to-order phase transition approach that enables the synthesis of ultrasmall (4 to 5 nm) and stable MPEI nanoparticles (up to eight elements). We apply just 5 min of Joule heating to promote the phase transition of the nanoparticles into L10 intermetallic structure, which is then preserved by rapidly cooling. This disorder-to-order transition results in phase-stable nanoscale MPEIs with compositions (e.g., PtPdAuFeCoNiCuSn), which have not been previously attained by traditional synthetic methods. This synthesis strategy offers a new paradigm for developing previously unexplored MPEI nanoparticles by accessing a nanoscale-size regime and novel compositions with potentially broad applications.
Collapse
Affiliation(s)
- Mingjin Cui
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Chunpeng Yang
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Sooyeon Hwang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Menghao Yang
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Sean Overa
- Department of Chemical and Biomolecular Engineering, Center for Catalytic Science and Technology, University of Delaware, Newark, DE 19716, USA
| | - Qi Dong
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Yonggang Yao
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Alexandra H. Brozena
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - David A. Cullen
- Center for Nanophase Materials Science, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Miaofang Chi
- Center for Nanophase Materials Science, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Thomas F. Blum
- Center for Nanophase Materials Science, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - David Morris
- Department of Chemistry, Dalhousie University, Halifax, NS 15000, Canada
| | - Zou Finfrock
- Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
- Science Division, Canadian Light Source Inc., 44 Innovation Boulevard, Saskatoon, SK S7N 2V3, Canada
| | - Xizheng Wang
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Peng Zhang
- Department of Chemistry, Dalhousie University, Halifax, NS 15000, Canada
| | - Vitaliy G. Goncharov
- Department of Chemistry and Alexandra Navrotsky Institute for Experimental Thermodynamics, Washington State University, Pullman, WA 99164, USA
| | - Xiaofeng Guo
- Department of Chemistry and Alexandra Navrotsky Institute for Experimental Thermodynamics, Washington State University, Pullman, WA 99164, USA
| | - Jian Luo
- Department of NanoEngineering, Program of Materials Science and Engineering, University of California San Diego, La Jolla, CA 92093, USA
| | - Yifei Mo
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Feng Jiao
- Department of Chemical and Biomolecular Engineering, Center for Catalytic Science and Technology, University of Delaware, Newark, DE 19716, USA
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| |
Collapse
|
3
|
Yao Y, Liu Z, Xie P, Huang Z, Li T, Morris D, Finfrock Z, Zhou J, Jiao M, Gao J, Mao Y, Miao J, Zhang P, Shahbazian-Yassar R, Wang C, Wang G, Hu L. Computationally aided, entropy-driven synthesis of highly efficient and durable multi-elemental alloy catalysts. Sci Adv 2020; 6:eaaz0510. [PMID: 32201728 PMCID: PMC7069714 DOI: 10.1126/sciadv.aaz0510] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 12/13/2019] [Indexed: 05/23/2023]
Abstract
Multi-elemental alloy nanoparticles (MEA-NPs) hold great promise for catalyst discovery in a virtually unlimited compositional space. However, rational and controllable synthesize of these intrinsically complex structures remains a challenge. Here, we report the computationally aided, entropy-driven design and synthesis of highly efficient and durable catalyst MEA-NPs. The computational strategy includes prescreening of millions of compositions, prediction of alloy formation by density functional theory calculations, and examination of structural stability by a hybrid Monte Carlo and molecular dynamics method. Selected compositions can be efficiently and rapidly synthesized at high temperature (e.g., 1500 K, 0.5 s) with excellent thermal stability. We applied these MEA-NPs for catalytic NH3 decomposition and observed outstanding performance due to the synergistic effect of multi-elemental mixing, their small size, and the alloy phase. We anticipate that the computationally aided rational design and rapid synthesis of MEA-NPs are broadly applicable for various catalytic reactions and will accelerate material discovery.
Collapse
Affiliation(s)
- Yonggang Yao
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Zhenyu Liu
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Pengfei Xie
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Zhennan Huang
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, 842 W. Taylor Street, Chicago, IL 60607, USA
| | - Tangyuan Li
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - David Morris
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Zou Finfrock
- Science Division, Canadian Light Source Inc., 44 Innovation Boulevard, Saskatoon, Saskatchewan S7N 2V3, Canada
- CLS@APS, Sector 20, Advanced Photon Source, Argonne National Laboratory, 9700 Cass Avenue, Lemont, IL 60439, USA
| | - Jihan Zhou
- Department of Physics and Astronomy and California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Miaolun Jiao
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Jinlong Gao
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Yimin Mao
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Jianwei Miao
- Department of Physics and Astronomy and California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Peng Zhang
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Reza Shahbazian-Yassar
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, 842 W. Taylor Street, Chicago, IL 60607, USA
| | - Chao Wang
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Guofeng Wang
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| |
Collapse
|