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Peer-Review Record

Area-Selective, In-Situ Growth of Pd-Modified ZnO Nanowires on MEMS Hydrogen Sensors

Nanomaterials 2022, 12(6), 1001; https://doi.org/10.3390/nano12061001
by Jiahao Hu 1,2, Tao Zhang 1,2, Ying Chen 2,3,*, Pengcheng Xu 2,3, Dan Zheng 1,* and Xinxin Li 2,3
Reviewer 1: Anonymous
Reviewer 2: Anonymous
Nanomaterials 2022, 12(6), 1001; https://doi.org/10.3390/nano12061001
Submission received: 27 February 2022 / Revised: 11 March 2022 / Accepted: 17 March 2022 / Published: 18 March 2022
(This article belongs to the Special Issue Advanced Nanomaterials and Nanodevices for VOCs Gas Sensor)

Round 1

Reviewer 1 Report

Presented manuscript is focused to synthesize Pd-modified ZnO NWs  in the sensing area of the micro-hotplate sensor.

Several remarks on the manuscript:

  1. What are the reasons or the advantages of using nanowires? The authors must demonstrate what is the novelty?
  2. Conclusion part should summarize all the important findings of the manuscript. Please reformulate it.

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 2 Report

The manuscript is well written there are some issues needs to be addressed before publication

1. In the section 3.4

It is mentioned that  "Repeatability is evaluated by exposing the sensor to 100 ppm H2 three times, as shown in Fig.4 c." but in the caption and figure it is written 50 ppm. Which is the correct one 100ppm or 50 ppm.

2. What is the response time and recovery time for the sensor at 150 deg c. include the same in the manuscript.

3. Reason for choosing Pd  nanoparticles in this work should be elaborated in the Introduction section which is missing.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

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