Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Water Electrolysis and Energy Harvesting with 0D Ion-Sensitive
  Field-Effect Transistors   The relationship of the gas bubble size to the size distribution critically
influences the effectiveness of electrochemical processes. Several optical and
acoustical techniques have been used to characterize the size and emission
frequency of bubbles. Here, we used zero-dimensional (0D) ion-sensitive
field-effect transistors (ISFETs) buried under a microbath to detect the
emission of individual bubbles electrically and to generate statistics on the
bubble emission time. The bubble size was evaluated via a simple model of the
electrolytic current. We suggest that energy lost during water electrolysis
could be used to generate electric pulses at an optimal efficiency with an
array of 0D ISFETs.

12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
2
The categories of this paper are: math
17
The categories of this paper are: q-fin