PMID- 35900104
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220809
IS  - 1520-5827 (Electronic)
IS  - 0743-7463 (Linking)
VI  - 38
IP  - 31
DP  - 2022 Aug 9
TI  - Low Platinum-Loaded Molybdenum Co-catalyst for the Hydrogen Evolution Reaction in 
      Alkaline and Acidic Media.
PG  - 9526-9531
LID - 10.1021/acs.langmuir.2c00902 [doi]
AB  - Developing an efficient catalytic system for electrolysis with reduced platinum 
      (Pt) loading while maintaining performance comparable to bulk platinum metal is 
      important to decrease costs and improve scalability of the hydrogen fuel economy. 
      Here we report the performance of a novel sputter-deposited molybdenum (Mo) thin 
      film with an extremely low co-loading of Pt, where Pt atoms were dispersed on Mo 
      (Pt(d)-Mo) as an electrocatalyst for the hydrogen evolution reaction (HER) in 
      either alkaline or acidic media. The Pt(d)-Mo electrocatalyst presents similar 
      catalytic activity to bulk Pt in alkaline media, while the performance is only 
      slightly decreased in acidic media. Differential electrochemical mass 
      spectrometry (DEMS) results confirm that the Pt(d)-Mo electrocatalyst produced 
      hydrogen at a rate comparable with that of a pristine Pt sample at the same 
      potential. A comparison with Pt-loaded degenerately doped p-type doped silicon 
      (Pt(d)-Si) suggests that Mo and Pt work synergistically to boost the performance 
      of Pt(d)-Mo catalysts. Cyclic voltammetry (CV) and X-ray photoelectron 
      spectroscopy (XPS) before and after 1000 cycles of continuous operation confirm 
      the significant durability of the Pt(d)-Mo performance. Overall, the Pt(d)-Mo 
      electrocatalyst, with comparable HER activity to bulk Pt despite an ultra-low Pt 
      loading, could be a strong candidate for hydrogen production in either acidic or 
      basic conditions.
FAU - Malali, Praveen
AU  - Malali P
AD  - Department of Mathematics, Computer Science and Engineering Technology, Elizabeth 
      City State University, Elizabeth City, North Carolina 27909, United States.
FAU - Muchharla, Baleeswaraiah
AU  - Muchharla B
AD  - Department of Mathematics, Computer Science and Engineering Technology, Elizabeth 
      City State University, Elizabeth City, North Carolina 27909, United States.
FAU - Sadasivuni, Kishor Kumar
AU  - Sadasivuni KK
AUID- ORCID: 0000-0003-2730-6483
AD  - Center for Advanced Materials, Qatar University, Doha 2713, Qatar.
FAU - Cao, Wei
AU  - Cao W
AD  - Department of Electrical and Computer Engineering, Old Dominion University, 
      Norfolk, Virginia 23529, United States.
FAU - Elsayed-Ali, Hani E
AU  - Elsayed-Ali HE
AUID- ORCID: 0000-0002-1329-5018
AD  - Department of Electrical and Computer Engineering, Old Dominion University, 
      Norfolk, Virginia 23529, United States.
FAU - Adedeji, Adetayo
AU  - Adedeji A
AD  - Department of Natural Sciences, Elizabeth City State University, Elizabeth City, 
      North Carolina 27909, United States.
FAU - Karoui, Abdennaceur
AU  - Karoui A
AD  - Center for Research Excellence in Science and Technology (CREST), Department of 
      Mathematics and Physics, North Carolina Central University, Durham, North 
      Carolina 27707, United States.
FAU - Abdullah, Aboubakr M
AU  - Abdullah AM
AD  - Center for Advanced Materials, Qatar University, Doha 2713, Qatar.
FAU - Spurgeon, Joshua M
AU  - Spurgeon JM
AUID- ORCID: 0000-0002-2987-0865
AD  - Conn Center for Renewable Energy Research, University of Louisville, Louisville, 
      Kentucky 40292, United States.
FAU - Kumar, Bijandra
AU  - Kumar B
AUID- ORCID: 0000-0002-7985-5903
AD  - Department of Mathematics, Computer Science and Engineering Technology, Elizabeth 
      City State University, Elizabeth City, North Carolina 27909, United States.
LA  - eng
PT  - Journal Article
DEP - 20220728
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
SB  - IM
EDAT- 2022/07/29 06:00
MHDA- 2022/07/29 06:01
CRDT- 2022/07/28 09:12
PHST- 2022/07/29 06:00 [pubmed]
PHST- 2022/07/29 06:01 [medline]
PHST- 2022/07/28 09:12 [entrez]
AID - 10.1021/acs.langmuir.2c00902 [doi]
PST - ppublish
SO  - Langmuir. 2022 Aug 9;38(31):9526-9531. doi: 10.1021/acs.langmuir.2c00902. Epub 
      2022 Jul 28.