Near-monolayer platinum shell on core-shell nanocatalysts for high-performance direct methanol fuel cell

Jang Jung Wang; Yu Ting Liu; I. Li Chen; Yaw Wen Yang; Tsung Kuang Yeh; Chih Hao Lee; Chi Chang Hu; Ten Chin Wen; Tsan Yao Chen; Tsang Lang Lin

doi:10.1021/jp408012d

Near-monolayer platinum shell on core-shell nanocatalysts for high-performance direct methanol fuel cell

Jang Jung Wang
, Yu Ting Liu
, I. Li Chen
, Yaw Wen Yang
, Tsung Kuang Yeh
, Chih Hao Lee
, Chi Chang Hu
, Ten Chin Wen
, Tsan Yao Chen
, Tsang Lang Lin

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

We investigate the Ru_core-Pt_shell nanoparticles (NPs) with near-monolayer thick shell atoms as the electrocatalysts at anode in the direct methanol fuel cell (DMFC). The results of X-ray diffraction indicate that its crystal structure experienced a compressive strain in Pt shell region. The shell thickness of Ru_core-Pt_shell NPs was determined to be 1.5 atomic layers by small-angle X-ray scattering by using a core-shell scattering model, and the surface atomic morphology was illustrated via high-resolution transmission electron microscopy (HRTEM). Compared with the Pt NPs, the power density of DMFC with Ru_core-Pt_shell NPs was improved by ∼450% (from 17.1 to 92.8 mW cm^-2 mg^-1), and the open-circuit voltage was improved by 0.18 V (from 0.49 to 0.67 V). Our results fulfill the development of cost-effective DMFC with outstanding performance.

Original language	English
Pages (from-to)	2253-2262
Number of pages	10
Journal	Journal of Physical Chemistry C
Volume	118
Issue number	5
DOIs	https://doi.org/10.1021/jp408012d
Publication status	Published - 2014 Feb 6

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/jp408012d

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@article{1e422f9b0e1a4368b9362ecfb62f7502,

title = "Near-monolayer platinum shell on core-shell nanocatalysts for high-performance direct methanol fuel cell",

abstract = "We investigate the Rucore-Ptshell nanoparticles (NPs) with near-monolayer thick shell atoms as the electrocatalysts at anode in the direct methanol fuel cell (DMFC). The results of X-ray diffraction indicate that its crystal structure experienced a compressive strain in Pt shell region. The shell thickness of Rucore-Ptshell NPs was determined to be 1.5 atomic layers by small-angle X-ray scattering by using a core-shell scattering model, and the surface atomic morphology was illustrated via high-resolution transmission electron microscopy (HRTEM). Compared with the Pt NPs, the power density of DMFC with Rucore-Ptshell NPs was improved by ∼450\% (from 17.1 to 92.8 mW cm-2 mg-1), and the open-circuit voltage was improved by 0.18 V (from 0.49 to 0.67 V). Our results fulfill the development of cost-effective DMFC with outstanding performance.",

author = "Wang, \{Jang Jung\} and Liu, \{Yu Ting\} and Chen, \{I. Li\} and Yang, \{Yaw Wen\} and Yeh, \{Tsung Kuang\} and Lee, \{Chih Hao\} and Hu, \{Chi Chang\} and Wen, \{Ten Chin\} and Chen, \{Tsan Yao\} and Lin, \{Tsang Lang\}",

year = "2014",

month = feb,

day = "6",

doi = "10.1021/jp408012d",

language = "English",

volume = "118",

pages = "2253--2262",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

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TY - JOUR

T1 - Near-monolayer platinum shell on core-shell nanocatalysts for high-performance direct methanol fuel cell

AU - Wang, Jang Jung

AU - Liu, Yu Ting

AU - Chen, I. Li

AU - Yang, Yaw Wen

AU - Yeh, Tsung Kuang

AU - Lee, Chih Hao

AU - Hu, Chi Chang

AU - Wen, Ten Chin

AU - Chen, Tsan Yao

AU - Lin, Tsang Lang

PY - 2014/2/6

Y1 - 2014/2/6

N2 - We investigate the Rucore-Ptshell nanoparticles (NPs) with near-monolayer thick shell atoms as the electrocatalysts at anode in the direct methanol fuel cell (DMFC). The results of X-ray diffraction indicate that its crystal structure experienced a compressive strain in Pt shell region. The shell thickness of Rucore-Ptshell NPs was determined to be 1.5 atomic layers by small-angle X-ray scattering by using a core-shell scattering model, and the surface atomic morphology was illustrated via high-resolution transmission electron microscopy (HRTEM). Compared with the Pt NPs, the power density of DMFC with Rucore-Ptshell NPs was improved by ∼450% (from 17.1 to 92.8 mW cm-2 mg-1), and the open-circuit voltage was improved by 0.18 V (from 0.49 to 0.67 V). Our results fulfill the development of cost-effective DMFC with outstanding performance.

AB - We investigate the Rucore-Ptshell nanoparticles (NPs) with near-monolayer thick shell atoms as the electrocatalysts at anode in the direct methanol fuel cell (DMFC). The results of X-ray diffraction indicate that its crystal structure experienced a compressive strain in Pt shell region. The shell thickness of Rucore-Ptshell NPs was determined to be 1.5 atomic layers by small-angle X-ray scattering by using a core-shell scattering model, and the surface atomic morphology was illustrated via high-resolution transmission electron microscopy (HRTEM). Compared with the Pt NPs, the power density of DMFC with Rucore-Ptshell NPs was improved by ∼450% (from 17.1 to 92.8 mW cm-2 mg-1), and the open-circuit voltage was improved by 0.18 V (from 0.49 to 0.67 V). Our results fulfill the development of cost-effective DMFC with outstanding performance.

UR - https://www.scopus.com/pages/publications/84893869589

UR - https://www.scopus.com/pages/publications/84893869589#tab=citedBy

U2 - 10.1021/jp408012d

DO - 10.1021/jp408012d

M3 - Article

AN - SCOPUS:84893869589

SN - 1932-7447

VL - 118

SP - 2253

EP - 2262

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 5

ER -

Near-monolayer platinum shell on core-shell nanocatalysts for high-performance direct methanol fuel cell

Abstract

All Science Journal Classification (ASJC) codes

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