Exploring beyond palladium: Catalytic reduction of aqueous oxyanion pollutants with alternative platinum group metals and new mechanistic implications

Xi Chen; Xiangchen Huo; Jinyong Liu; Yin Wang; Charles J. Werth; Timothy J. Strathmann

doi:10.1016/j.cej.2016.12.058

Exploring beyond palladium: Catalytic reduction of aqueous oxyanion pollutants with alternative platinum group metals and new mechanistic implications

Xi Chen (Co-first Author), Xiangchen Huo (Co-first Author), Jinyong Liu^* (Co-first Author), Yin Wang, Charles J. Werth, Timothy J. Strathmann

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

70 Citations (Scopus)

Abstract

For over two decades, Pd has been the primary hydrogenation metal studied for reductive catalytic water treatment applications. Herein, we report that alternative platinum group metals (Rh, Ru, Pt and Ir) can exhibit substantially higher activity, wider substrate selectivity and variable pH dependence in comparison to Pd. Cross comparison of multiple metals and oxyanion substrates provides new mechanistic insights into the heterogeneous reactions. Activity differences and pH effects mainly originate from the chemical nature of individual metals. Considering the advantages in performance and cost, results support renewed investigation of alternative hydrogenation metals to advance catalytic technologies for water purification and other environmental applications. © 2016 Elsevier B.V.

Original language	English
Pages (from-to)	745-752
Journal	Chemical Engineering Journal
Volume	313
DOIs	https://doi.org/10.1016/j.cej.2016.12.058
Publication status	Published - 2017
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Research Keywords

Bromate
Chlorate
Reductive catalysis
Rhodium
Ruthenium
Water treatment

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10.1016/j.cej.2016.12.058

https://www.sciencedirect.com/science/article/am/pii/S1385894716318198

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title = "Exploring beyond palladium: Catalytic reduction of aqueous oxyanion pollutants with alternative platinum group metals and new mechanistic implications",

abstract = "For over two decades, Pd has been the primary hydrogenation metal studied for reductive catalytic water treatment applications. Herein, we report that alternative platinum group metals (Rh, Ru, Pt and Ir) can exhibit substantially higher activity, wider substrate selectivity and variable pH dependence in comparison to Pd. Cross comparison of multiple metals and oxyanion substrates provides new mechanistic insights into the heterogeneous reactions. Activity differences and pH effects mainly originate from the chemical nature of individual metals. Considering the advantages in performance and cost, results support renewed investigation of alternative hydrogenation metals to advance catalytic technologies for water purification and other environmental applications. {\textcopyright} 2016 Elsevier B.V.",

keywords = "Bromate, Chlorate, Reductive catalysis, Rhodium, Ruthenium, Water treatment",

author = "Xi Chen and Xiangchen Huo and Jinyong Liu and Yin Wang and Werth, {Charles J.} and Strathmann, {Timothy J.}",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

year = "2017",

doi = "10.1016/j.cej.2016.12.058",

language = "English",

volume = "313",

pages = "745--752",

journal = "Chemical Engineering Journal",

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Exploring beyond palladium: Catalytic reduction of aqueous oxyanion pollutants with alternative platinum group metals and new mechanistic implications. / Chen, Xi (Co-first Author); Huo, Xiangchen (Co-first Author); Liu, Jinyong (Co-first Author) et al.
In: Chemical Engineering Journal, Vol. 313, 2017, p. 745-752.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Exploring beyond palladium

T2 - Catalytic reduction of aqueous oxyanion pollutants with alternative platinum group metals and new mechanistic implications

AU - Chen, Xi

AU - Huo, Xiangchen

AU - Liu, Jinyong

AU - Wang, Yin

AU - Werth, Charles J.

AU - Strathmann, Timothy J.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2017

Y1 - 2017

N2 - For over two decades, Pd has been the primary hydrogenation metal studied for reductive catalytic water treatment applications. Herein, we report that alternative platinum group metals (Rh, Ru, Pt and Ir) can exhibit substantially higher activity, wider substrate selectivity and variable pH dependence in comparison to Pd. Cross comparison of multiple metals and oxyanion substrates provides new mechanistic insights into the heterogeneous reactions. Activity differences and pH effects mainly originate from the chemical nature of individual metals. Considering the advantages in performance and cost, results support renewed investigation of alternative hydrogenation metals to advance catalytic technologies for water purification and other environmental applications. © 2016 Elsevier B.V.

AB - For over two decades, Pd has been the primary hydrogenation metal studied for reductive catalytic water treatment applications. Herein, we report that alternative platinum group metals (Rh, Ru, Pt and Ir) can exhibit substantially higher activity, wider substrate selectivity and variable pH dependence in comparison to Pd. Cross comparison of multiple metals and oxyanion substrates provides new mechanistic insights into the heterogeneous reactions. Activity differences and pH effects mainly originate from the chemical nature of individual metals. Considering the advantages in performance and cost, results support renewed investigation of alternative hydrogenation metals to advance catalytic technologies for water purification and other environmental applications. © 2016 Elsevier B.V.

KW - Bromate

KW - Chlorate

KW - Reductive catalysis

KW - Rhodium

KW - Ruthenium

KW - Water treatment

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85008235149&origin=recordpage

U2 - 10.1016/j.cej.2016.12.058

DO - 10.1016/j.cej.2016.12.058

M3 - RGC 21 - Publication in refereed journal

SN - 1385-8947

VL - 313

SP - 745

EP - 752

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

ER -

Exploring beyond palladium: Catalytic reduction of aqueous oxyanion pollutants with alternative platinum group metals and new mechanistic implications

Abstract

Bibliographical note

UN SDGs

Research Keywords

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